CVE-2021-21193

2021-03-16T00:00:00

Description

Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. **Recent assessments:** **gwillcox-r7** at March 15, 2021 6:18am UTC reported: Reported as exploited in the wild at <https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html> and at <https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>. This bug seems to have scarce details from what I can tell online, however it appears to be a UAF bug within Blink that was reported by an anonymous researcher on 2021-03-09. The details for this bug are currently locked so that only Google employees can access it, but should it be opened to the public the details will be at <https://bugs.chromium.org/p/chromium/issues/detail?id=1186287>. As per usual the advice to protect against UAF bugs in browsers is to disable JavaScript on untrusted websites via a plugin such as NoScript. Since most UAF’s require JavaScript to be enabled to conduct exploitation, this will act as an effective mitigation in most cases, but users should not rely on this as their sole protection mechanism. It is interesting to see that this is the third 0day exploited in the wild this year in Chrome, alongside CVE-2021-21166, a object lifecycle issue in the audio component, and CVE-2021-21148, a heap buffer overflow within the V8 scripting engine. Time will tell if this trend continues though, but it is interesting to see such an regular cadence of vulnerabilities being exploited in the wild. Assessed Attacker Value: 4 Assessed Attacker Value: 4Assessed Attacker Value: 3

{"id": "AKB:C300BC5A-FE8F-4274-AFA8-C1F47411FEC1", "vendorId": null, "type": "attackerkb", "bulletinFamily": "info", "title": "CVE-2021-21193", "description": "Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\n\n \n**Recent assessments:** \n \n**gwillcox-r7** at March 15, 2021 6:18am UTC reported:\n\nReported as exploited in the wild at <https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html> and at <https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>.\n\nThis bug seems to have scarce details from what I can tell online, however it appears to be a UAF bug within Blink that was reported by an anonymous researcher on 2021-03-09. The details for this bug are currently locked so that only Google employees can access it, but should it be opened to the public the details will be at <https://bugs.chromium.org/p/chromium/issues/detail?id=1186287>.\n\nAs per usual the advice to protect against UAF bugs in browsers is to disable JavaScript on untrusted websites via a plugin such as NoScript. Since most UAF\u2019s require JavaScript to be enabled to conduct exploitation, this will act as an effective mitigation in most cases, but users should not rely on this as their sole protection mechanism.\n\nIt is interesting to see that this is the third 0day exploited in the wild this year in Chrome, alongside CVE-2021-21166, a object lifecycle issue in the audio component, and CVE-2021-21148, a heap buffer overflow within the V8 scripting engine. Time will tell if this trend continues though, but it is interesting to see such an regular cadence of vulnerabilities being exploited in the wild.\n\nAssessed Attacker Value: 4 \nAssessed Attacker Value: 4Assessed Attacker Value: 3\n", "published": "2021-03-16T00:00:00", "modified": "2021-03-24T00:00:00", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 6.8}, "severity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}, "href": "https://attackerkb.com/topics/ACMmdhOpt2/cve-2021-21193", "reporter": "AttackerKB", "references": ["https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193", "https://www.debian.org/security/2021/dsa-4886", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/", "https://security.gentoo.org/glsa/202104-08", "https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html", "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html", "https://crbug.com/1186287"], "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193"], "immutableFields": [], "lastseen": "2022-10-23T17:13:30", "viewCount": 88, "enchantments": {"dependencies": {"references": [{"type": "archlinux", "idList": ["ASA-202102-4", "ASA-202102-6", "ASA-202103-19", "ASA-202103-9"]}, {"type": "attackerkb", "idList": ["AKB:B61D2687-96CE-4CE9-939F-9E35DA7814C4", "AKB:DFA61FBF-688B-44E9-8B09-134E93207AD9"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0482"]}, {"type": "chrome", "idList": ["GCSA-2763659147289736801", "GCSA-3803715665928870837", "GCSA-5280375550425303743"]}, {"type": "cisa_kev", "idList": ["CISA-KEV-CVE-2021-21148", "CISA-KEV-CVE-2021-21166", "CISA-KEV-CVE-2021-21193"]}, {"type": "cve", "idList": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193"]}, {"type": "debian", "idList": ["DEBIAN:DSA-4858-1:7131E", "DEBIAN:DSA-4886-1:0EF07", "DEBIAN:DSA-4886-1:8DF2D"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2021-21148", "DEBIANCVE:CVE-2021-21166", "DEBIANCVE:CVE-2021-21193"]}, {"type": "fedora", "idList": ["FEDORA:4E16930B130B", "FEDORA:807E83072E26", "FEDORA:A017F3074280", "FEDORA:BB03930B3A56", "FEDORA:BF4FC30A0346", "FEDORA:C67773052A4D"]}, {"type": "freebsd", "idList": ["3E01AAD2-680E-11EB-83E2-E09467587C17", "B81AD6D6-8633-11EB-99C5-E09467587C17", "F00B65D8-7CCB-11EB-B3BE-E09467587C17"]}, {"type": "gentoo", "idList": ["GLSA-202104-08"]}, {"type": "githubexploit", "idList": ["6432789A-FC4C-597F-925F-5764319F257F"]}, {"type": "googleprojectzero", "idList": ["GOOGLEPROJECTZERO:CA925EE6A931620550EF819815B14156"]}, {"type": "kaspersky", "idList": ["KLA12062", "KLA12063", "KLA12106", "KLA12107", "KLA12115", "KLA12122", "KLA12179", "KLA12181"]}, {"type": "krebs", "idList": ["KREBS:1BEFD58F5124A2E4CA40BD9C1B49B9B7"]}, {"type": "mageia", "idList": ["MGASA-2021-0142", "MGASA-2021-0406"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:07CCE98B638067D2F0F9AD53E87E8D55", "MALWAREBYTES:390E663F11CA04293C83488A40CB3A8A", "MALWAREBYTES:AC714CB24C401F36B220E29C6D2B049F"]}, {"type": "mscve", "idList": ["MS:CVE-2021-21148", "MS:CVE-2021-21166", "MS:CVE-2021-21193"]}, {"type": "nessus", "idList": ["701323.PASL", "DEBIAN_DSA-4858.NASL", "DEBIAN_DSA-4886.NASL", "FEDORA_2021-05AFA65D39.NASL", "FEDORA_2021-141D8640CE.NASL", "FEDORA_2021-4740239E28.NASL", "FEDORA_2021-7FB30B9381.NASL", "FEDORA_2021-C88A96BD4B.NASL", "FREEBSD_PKG_3E01AAD2680E11EB83E2E09467587C17.NASL", "FREEBSD_PKG_B81AD6D6863311EB99C5E09467587C17.NASL", "FREEBSD_PKG_F00B65D87CCB11EBB3BEE09467587C17.NASL", "GENTOO_GLSA-202104-08.NASL", "GOOGLE_CHROME_88_0_4324_150.NASL", "GOOGLE_CHROME_89_0_4389_72.NASL", "GOOGLE_CHROME_89_0_4389_90.NASL", "MACOSX_GOOGLE_CHROME_88_0_4324_150.NASL", "MACOSX_GOOGLE_CHROME_89_0_4389_72.NASL", "MACOSX_GOOGLE_CHROME_89_0_4389_90.NASL", "MICROSOFT_EDGE_CHROMIUM_88_0_705_63.NASL", "MICROSOFT_EDGE_CHROMIUM_89_0_774_45.NASL", "MICROSOFT_EDGE_CHROMIUM_89_0_774_54.NASL", "OPENSUSE-2021-267.NASL", "OPENSUSE-2021-296.NASL", "OPENSUSE-2021-392.NASL", "OPENSUSE-2021-413.NASL", "OPENSUSE-2021-436.NASL", "OPENSUSE-2021-592.NASL"]}, {"type": "osv", "idList": ["OSV:DSA-4858-1", "OSV:DSA-4886-1"]}, {"type": "qualysblog", "idList": ["QUALYSBLOG:0082A77BD8EFFF48B406D107FEFD0DD3", "QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A"]}, {"type": "rapid7blog", "idList": ["RAPID7BLOG:44EA89871AFF6881B909B9FD0E07034F", "RAPID7BLOG:88A83067D8D3C5AEBAF1B793818EEE53"]}, {"type": "securelist", "idList": ["SECURELIST:20C7BC6E3C43CD3D939A2E3EAE01D4C1"]}, {"type": "suse", "idList": ["OPENSUSE-SU-2021:0267-1", "OPENSUSE-SU-2021:0276-1", "OPENSUSE-SU-2021:0296-1", "OPENSUSE-SU-2021:0392-1", "OPENSUSE-SU-2021:0401-1", "OPENSUSE-SU-2021:0413-1", "OPENSUSE-SU-2021:0436-1", "OPENSUSE-SU-2021:0446-1", "OPENSUSE-SU-2021:0592-1", "OPENSUSE-SU-2021:0973-1", "OPENSUSE-SU-2021:1016-1"]}, {"type": "thn", "idList": ["THN:15BF409706D7240A5276C705732D745F", "THN:1A836FDDE57334BC4DAFA65E6DFA02E4", "THN:2E0F12E8B4294632DF7D326E9360976B", "THN:4CC79A3CEFEDEB0DC9CF87C5B9035209", "THN:50D7C51FE6D69FC5DB5B37402AD0E412", "THN:6A9CD6F085628D08978727C0FF597535", "THN:7D7C05739ECD847B8CDEEAF930C51BF8", "THN:B7217784F9D53002315C9C43CCC73766", "THN:BBBFDA7EEE18F813A5DA572FD390D528", "THN:C736174C6B0ADC38AA88BC58F30271DA", "THN:CDCF433A7837180E1F294791C672C5BB", "THN:EF50BA60FF5E3EF9AF1570FF5A2589A0", "THN:F197A729A4F49F957F9D5910875EBAAA"]}, {"type": "threatpost", "idList": ["THREATPOST:3697F9293A6DFF6CD5927E9E68FF488A", "THREATPOST:398E85215A3E7B7329EE3FED8F6374FF", "THREATPOST:45B63C766965F5748AEC30DE709C8003", "THREATPOST:88DD5812D3C8652E304F32507E4F68DD", "THREATPOST:A8D4979B3A84B8E7B98B5321FA948454", "THREATPOST:CF9E25BD324C5940B0795721CA134155", "THREATPOST:EA23582BD77C428ACE9B9DB7D5741EB6", "THREATPOST:F2924795225F38CC02ED6F6A0AA4416D"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2021-21148", "UB:CVE-2021-21166", "UB:CVE-2021-21193"]}, {"type": "veracode", "idList": ["VERACODE:29323", "VERACODE:29632", "VERACODE:29724"]}]}, "score": {"value": 0.6, "vector": "NONE"}, "backreferences": {"references": [{"type": "archlinux", "idList": ["ASA-202102-4", "ASA-202102-6", "ASA-202103-19"]}, {"type": "attackerkb", "idList": ["AKB:B61D2687-96CE-4CE9-939F-9E35DA7814C4"]}, {"type": "checkpoint_advisories", "idList": ["CPAI-2021-0482"]}, {"type": "chrome", "idList": ["GCSA-2763659147289736801", "GCSA-3803715665928870837", "GCSA-5280375550425303743"]}, {"type": "cve", "idList": ["CVE-2021-21148"]}, {"type": "debian", "idList": ["DEBIAN:DSA-4858-1:7131E", "DEBIAN:DSA-4886-1:0EF07"]}, {"type": "debiancve", "idList": ["DEBIANCVE:CVE-2021-21148", "DEBIANCVE:CVE-2021-21166", "DEBIANCVE:CVE-2021-21193"]}, {"type": "fedora", "idList": ["FEDORA:4E16930B130B", "FEDORA:807E83072E26", "FEDORA:BB03930B3A56", "FEDORA:BF4FC30A0346", "FEDORA:C67773052A4D"]}, {"type": "freebsd", "idList": ["3E01AAD2-680E-11EB-83E2-E09467587C17", "F00B65D8-7CCB-11EB-B3BE-E09467587C17"]}, {"type": "gentoo", "idList": ["GLSA-202104-08"]}, {"type": "kaspersky", "idList": ["KLA12062", "KLA12063", "KLA12106", "KLA12107", "KLA12115", "KLA12122", "KLA12179", "KLA12181"]}, {"type": "krebs", "idList": ["KREBS:1BEFD58F5124A2E4CA40BD9C1B49B9B7"]}, {"type": "malwarebytes", "idList": ["MALWAREBYTES:07CCE98B638067D2F0F9AD53E87E8D55", "MALWAREBYTES:AC714CB24C401F36B220E29C6D2B049F"]}, {"type": "metasploit", "idList": ["MSF:ILITIES/FREEBSD-CVE-2021-21159/"]}, {"type": "mscve", "idList": ["MS:CVE-2021-21148"]}, {"type": "nessus", "idList": ["DEBIAN_DSA-4858.NASL", "DEBIAN_DSA-4886.NASL", "FEDORA_2021-05AFA65D39.NASL", "FEDORA_2021-141D8640CE.NASL", "FEDORA_2021-4740239E28.NASL", "FEDORA_2021-7FB30B9381.NASL", "FREEBSD_PKG_3E01AAD2680E11EB83E2E09467587C17.NASL", "GENTOO_GLSA-202104-08.NASL", "GOOGLE_CHROME_88_0_4324_150.NASL", "GOOGLE_CHROME_89_0_4389_72.NASL", "MACOSX_GOOGLE_CHROME_88_0_4324_150.NASL", "MACOSX_GOOGLE_CHROME_89_0_4389_72.NASL", "MICROSOFT_EDGE_CHROMIUM_88_0_705_63.NASL", "OPENSUSE-2021-267.NASL", "OPENSUSE-2021-296.NASL", "OPENSUSE-2021-413.NASL"]}, {"type": "qualysblog", "idList": ["QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A"]}, {"type": "rapid7blog", "idList": ["RAPID7BLOG:44EA89871AFF6881B909B9FD0E07034F"]}, {"type": "securelist", "idList": ["SECURELIST:20C7BC6E3C43CD3D939A2E3EAE01D4C1"]}, {"type": "suse", "idList": ["OPENSUSE-SU-2021:0267-1", "OPENSUSE-SU-2021:0276-1", "OPENSUSE-SU-2021:0296-1", "OPENSUSE-SU-2021:0392-1", "OPENSUSE-SU-2021:0401-1", "OPENSUSE-SU-2021:0413-1", "OPENSUSE-SU-2021:0436-1", "OPENSUSE-SU-2021:0446-1", "OPENSUSE-SU-2021:0592-1", "OPENSUSE-SU-2021:0973-1", "OPENSUSE-SU-2021:1016-1"]}, {"type": "thn", "idList": ["THN:2E0F12E8B4294632DF7D326E9360976B", "THN:4CC79A3CEFEDEB0DC9CF87C5B9035209", "THN:BBBFDA7EEE18F813A5DA572FD390D528", "THN:C736174C6B0ADC38AA88BC58F30271DA", "THN:CDCF433A7837180E1F294791C672C5BB", "THN:EF50BA60FF5E3EF9AF1570FF5A2589A0", "THN:F197A729A4F49F957F9D5910875EBAAA"]}, {"type": "threatpost", "idList": ["THREATPOST:398E85215A3E7B7329EE3FED8F6374FF", "THREATPOST:A8D4979B3A84B8E7B98B5321FA948454", "THREATPOST:CF9E25BD324C5940B0795721CA134155", "THREATPOST:EA23582BD77C428ACE9B9DB7D5741EB6"]}, {"type": "ubuntucve", "idList": ["UB:CVE-2021-21148", "UB:CVE-2021-21166", "UB:CVE-2021-21193"]}]}, "exploitation": null, "vulnersScore": 0.6}, "_state": {"wildexploited": 0, "dependencies": 1666545254, "score": 1666545382}, "_internal": {"wildexploited_cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193"], "score_hash": "0ae39f0cc754cc184852d36b034b3e03"}, "attackerkb": {"attackerValue": 4, "exploitability": 3}, "wildExploited": true, "wildExploitedCategory": {}, "wildExploitedReports": [], "references_categories": {"Canonical": ["https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193"], "Advisory": ["https://www.debian.org/security/2021/dsa-4886", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/", "https://security.gentoo.org/glsa/202104-08"], "Miscellaneous": ["https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html", "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html", "https://crbug.com/1186287"]}, "tags": ["common_enterprise", "pre_auth", "default_configuration"], "mitre_vector": {"Initial Access": ["Exploit Public-Facing Application(Validated)"]}, "last_activity": "2021-03-24T00:00:00"}

{"thn": [{"lastseen": "2022-05-09T12:39:02", "description": "[![](https://thehackernews.com/images/-tnjJ0FH8P0I/YEwt7ddHBcI/AAAAAAAACB8/2lR87aM5jBAUOKikDOdI3SWSC9ZG92FcgCLcBGAsYHQ/s0/chrome-browser-update.jpg)](<https://thehackernews.com/images/-tnjJ0FH8P0I/YEwt7ddHBcI/AAAAAAAACB8/2lR87aM5jBAUOKikDOdI3SWSC9ZG92FcgCLcBGAsYHQ/s0/chrome-browser-update.jpg>)\n\nGoogle has addressed yet another actively exploited zero-day in Chrome browser, marking the second such fix released by the company within a month.\n\nThe browser maker on Friday shipped 89.0.4389.90 for Windows, Mac, and Linux, which is expected to be rolling out over the coming days/weeks to all users.\n\nWhile the update contains a total of five security fixes, the most important flaw rectified by Google concerns a [use after free](<https://cwe.mitre.org/data/definitions/416.html>) vulnerability in its Blink rendering engine. The bug is tracked as CVE-2021-21193.\n\nDetails about the flaw are scarce except that it was reported to Google by an anonymous researcher on March 9.\n\nAccording to IBM, the vulnerability is rated 8.8 out of 10 on the CVSS scale, and could allow a remote attacker to execute arbitrary code on the target system. \"By persuading a victim to visit a specially crafted Web site, a remote attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system,\" the report stated.\n\nAs is usually the case with actively exploited flaws, Google issued a terse statement acknowledging that an exploit for CVE-2021-21193 existed but refrained from sharing additional information until a majority of users are updated with the fixes and prevent other threat actors from creating exploits targeting this zero-day.\n\n[![](https://thehackernews.com/images/-4e8UqaJKLag/YEwrYTe6kaI/AAAAAAAACB0/A61b0Tzs5nIymspbYAAIoURKA3zV5lE2QCLcBGAsYHQ/s0/chrome-zero-day.jpg)](<https://thehackernews.com/images/-4e8UqaJKLag/YEwrYTe6kaI/AAAAAAAACB0/A61b0Tzs5nIymspbYAAIoURKA3zV5lE2QCLcBGAsYHQ/s0/chrome-zero-day.jpg>)\n\n\"Google is aware of reports that an exploit for CVE-2021-21193 exists in the wild,\" Chrome Technical Program Manager Prudhvikumar Bommana [noted](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>) in a blog post.\n\nWith this update, Google has fixed three zero-day flaws in Chrome since the start of the year.\n\nEarlier this month, the company issued a fix for an \"object lifecycle issue in audio\" (CVE-2021-21166) which it said was being actively exploited. Then on February 4, the company resolved another actively-exploited heap buffer overflow flaw (CVE-2021-21148) in its V8 JavaScript rendering engine.\n\nChrome users can update to the latest version by heading to Settings > Help > About Google Chrome to mitigate the risk associated with the flaw.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-13T03:16:00", "type": "thn", "title": "Another Google Chrome 0-Day Bug Found Actively Exploited In-the-Wild", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193"], "modified": "2021-03-16T04:51:58", "id": "THN:15BF409706D7240A5276C705732D745F", "href": "https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:38:21", "description": "[![Chrome 0-Days Under Attack](https://thehackernews.com/images/-9Ndx9Vcrx9E/YHaB5SvoxwI/AAAAAAAACRI/WgbWr7Dgj6sRKNuvNcO4lj-zwEO5CNQdwCLcBGAsYHQ/s728-e1000/chrome-zero-day.jpg)](<https://thehackernews.com/images/-9Ndx9Vcrx9E/YHaB5SvoxwI/AAAAAAAACRI/WgbWr7Dgj6sRKNuvNcO4lj-zwEO5CNQdwCLcBGAsYHQ/s0/chrome-zero-day.jpg>)\n\nGoogle on Tuesday released a new version of Chrome web-browsing software for Windows, Mac, and Linux with patches for two newly discovered security vulnerabilities for both of which it says exploits exist in the wild, allowing attackers to engage in active exploitation.\n\nOne of the two flaws concerns an insufficient validation of untrusted input in its V8 JavaScript rendering engine (CVE-2021-21220), which was demonstrated by Dataflow Security's Bruno Keith and Niklas Baumstark at the [Pwn2Own 2021](<https://thehackernews.com/2021/04/windows-ubuntu-zoom-safari-ms-exchange.html>) hacking contest last week.\n\nWhile Google moved to fix the flaw quickly, security researcher Rajvardhan Agarwal published a [working exploit](<https://thehackernews.com/2021/04/rce-exploit-released-for-unpatched.html>) over the weekend by reverse-engineering the patch that the Chromium team pushed to the open-source component, a factor that may have played a crucial role in the release.\n\n**UPDATE:** _Agarwal, in an email to The Hacker News, confirmed that there's [one more vulnerability](<https://twitter.com/r4j0x00/status/1382125720344793090>) affecting Chromium-based browsers that has been patched in the latest version of V8, but has not been included in the Chrome release rolling out today, thereby leaving users potentially vulnerable to attacks even after installing the new update._\n\n\"Even though both the flaws are different in nature, they can be exploited to gain RCE in the renderer process,\" Agarwal told The Hacker News via email. \"I suspect that the first patch was released with the Chrome update because of the published exploit but as the second patch was not applied to Chrome, it can still be exploited.\"\n\nAlso resolved by the company is a [use-after-free](<https://cwe.mitre.org/data/definitions/416.html>) vulnerability in its Blink browser engine (CVE-2021-21206). An anonymous researcher has been credited with reporting the flaw on April 7.\n\n[![Chrome 0-Days Under Attack](https://thehackernews.com/images/-Co9nqKO9t2I/YHaAjushveI/AAAAAAAACRA/uFUYN6VpoCwJz2lCJEMBEGAwXowVZlR3wCLcBGAsYHQ/s728-e1000/chrome-hacking.jpg)](<https://thehackernews.com/images/-Co9nqKO9t2I/YHaAjushveI/AAAAAAAACRA/uFUYN6VpoCwJz2lCJEMBEGAwXowVZlR3wCLcBGAsYHQ/s0/chrome-hacking.jpg>)\n\n\"Google is aware of reports that exploits for CVE-2021-21206 and CVE-2021-21220 exist in the wild,\" Chrome Technical Program Manager Prudhvikumar Bommana [noted](<https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html>) in a blog post.\n\nIt's worth noting that the existence of an exploit is not evidence of active exploitation by threat actors. Since the start of the year, Google has fixed three shortcomings in Chrome that have been under attack, including [CVE-2021-21148](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>), [CVE-2021-21166](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>), and [CVE-2021-21193](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>).\n\nChrome 89.0.4389.128 is expected to roll out in the coming days. Users can update to the latest version by heading to Settings > Help > About Google Chrome to mitigate the risk associated with the flaws.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-04-14T05:48:00", "type": "thn", "title": "Update Your Chrome Browser to Patch 2 New In-the-Wild 0-Day Exploits", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220"], "modified": "2021-04-14T08:32:40", "id": "THN:F197A729A4F49F957F9D5910875EBAAA", "href": "https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:39:04", "description": "[![](https://thehackernews.com/images/-QHv1N-h4fZY/YD8letBQzWI/AAAAAAAAB64/E1KslMnXt0oEcr7e27y2idTnPPl_nm3VQCLcBGAsYHQ/s0/chrome-hacking.jpg)](<https://thehackernews.com/images/-QHv1N-h4fZY/YD8letBQzWI/AAAAAAAAB64/E1KslMnXt0oEcr7e27y2idTnPPl_nm3VQCLcBGAsYHQ/s0/chrome-hacking.jpg>)\n\nExactly a month after [patching](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) an actively exploited zero-day flaw in Chrome, Google today rolled out fixes for yet another zero-day vulnerability in the world's most popular web browser that it says is being abused in the wild.\n\nChrome 89.0.4389.72, released by the search giant for Windows, Mac, and Linux on Tuesday, comes with a total of 47 security fixes, the most severe of which concerns an \"object lifecycle issue in audio.\"\n\nTracked as CVE-2021-21166, the security flaw is one of the two bugs reported last month by Alison Huffman of Microsoft Browser Vulnerability Research on February 11. A separate object lifecycle flaw, also identified in the audio component, was reported to Google on February 4, the same day the stable version of Chrome 88 became available.\n\nWith no additional details, it's not immediately clear if the two security shortcomings are related.\n\n[![](https://thehackernews.com/images/--VPerofAuok/YD8mK08wMrI/AAAAAAAAB7I/VkM_Pg08vFQEvCxV3HbTbaDEd1HRja87QCLcBGAsYHQ/s0/hacking.jpg)](<https://thehackernews.com/images/--VPerofAuok/YD8mK08wMrI/AAAAAAAAB7I/VkM_Pg08vFQEvCxV3HbTbaDEd1HRja87QCLcBGAsYHQ/s0/hacking.jpg>)\n\nGoogle acknowledged that an exploit for the vulnerability exists in the wild but stopped short of sharing more specifics to allow a majority of users to install the fixes and prevent other threat actors from creating exploits targeting this zero-day.\n\n\"Google is aware of reports that an exploit for CVE-2021-21166 exists in the wild,\" Chrome Technical Program Manager Prudhvikumar Bommana [said](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html>).\n\nThis is the second zero-day flaw in Chrome that Google has addressed since the start of the year.\n\nOn February 4, the company [issued a fix](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) for an actively-exploited heap buffer overflow flaw (CVE-2021-21148) in its V8 JavaScript rendering engine. Additionally, Google last year [resolved five Chrome zero-days](<https://thehackernews.com/2020/11/two-new-chrome-0-days-under-active.html>) that were actively exploited in the wild in a span of one month between October 20 and November 12.\n\nChrome users can update to the latest version by heading to Settings > Help > About Google Chrome to mitigate the risk associated with the flaw.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-03T06:03:00", "type": "thn", "title": "New Chrome 0-day Bug Under Active Attacks \u2013 Update Your Browser ASAP!", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166"], "modified": "2021-03-13T02:55:42", "id": "THN:EF50BA60FF5E3EF9AF1570FF5A2589A0", "href": "https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:37:58", "description": "[![](https://thehackernews.com/images/--v2cn8JGV00/YMGRd9cFvrI/AAAAAAAACz4/i5Stk6m4GEgwbul82T6lZeEbdMMNfofJQCLcBGAsYHQ/s0/chrome-zero-day-vulnerability.jpg)](<https://thehackernews.com/images/--v2cn8JGV00/YMGRd9cFvrI/AAAAAAAACz4/i5Stk6m4GEgwbul82T6lZeEbdMMNfofJQCLcBGAsYHQ/s0/chrome-zero-day-vulnerability.jpg>)\n\nAttention readers, if you are using Google Chrome browser on your Windows, Mac, or Linux computers, you need to update it immediately to the latest version Google released earlier today.\n\nThe internet services company has rolled out an urgent update to the browser to address 14 newly discovered security issues, including a zero-day flaw that it says is being actively exploited in the wild.\n\nTracked as [CVE-2021-30551](<https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html>), the vulnerability stems from a type confusion issue in its V8 open-source and JavaScript engine. Sergei Glazunov of Google Project Zero has been credited with discovering and reporting the flaw.\n\nAlthough the search giant's Chrome team issued a terse statement acknowledging \"an exploit for CVE-2021-30551 exists in the wild,\" Shane Huntley, Director of Google's Threat Analysis Group, [hinted](<https://twitter.com/ShaneHuntley/status/1402712986289016835>) that the vulnerability was leveraged by the same actor that abused [CVE-2021-33742](<https://thehackernews.com/2021/06/update-your-windows-computers-to-patch.html>), an actively exploited remote code execution flaw in Windows MSHTML platform that was addressed by Microsoft as part of its Patch Tuesday update on June 8.\n\n[![](https://thehackernews.com/images/-XI4fkisfDp0/YMGPq0RtpKI/AAAAAAAACzw/d0mpshr20nw2j--sOXxBrrTJIj2IP95ewCLcBGAsYHQ/s0/chrome-zero-day.jpg)](<https://thehackernews.com/images/-XI4fkisfDp0/YMGPq0RtpKI/AAAAAAAACzw/d0mpshr20nw2j--sOXxBrrTJIj2IP95ewCLcBGAsYHQ/s0/chrome-zero-day.jpg>)\n\nThe two zero-days are said to have been provided by a commercial exploit broker to a nation-state actor, which used them in limited attacks against targets in Eastern Europe and the Middle East, Huntley said.\n\nMore technical details about the nature of the attacks are to be released in the coming weeks so as to allow a majority of the users to install the update and prevent other threat actors from creating exploits targeting the flaw.\n\nWith the latest fix, Google has addressed a total of seven zero-days in Chrome since the start of the year \u2014\n\n * [**CVE-2021-21148**](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [**CVE-2021-21166**](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [**CVE-2021-21193**](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21206**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21220**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [**CVE-2021-21224**](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n\nChrome users can update to the latest version (91.0.4472.101) by heading to Settings > Help > About Google Chrome to mitigate the risk associated with the flaw.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-06-10T04:14:00", "type": "thn", "title": "New Chrome 0-Day Bug Under Active Attacks \u2013 Update Your Browser ASAP!", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-33742"], "modified": "2021-06-10T10:25:50", "id": "THN:7D7C05739ECD847B8CDEEAF930C51BF8", "href": "https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:39:20", "description": "[![Chrome Browser](https://thehackernews.com/images/--Br-zb7NQb0/YPEUTqMvgsI/AAAAAAAADNw/cesEHjkHFKgyqC_MTP_ji5iUXUCeqoH1QCLcBGAsYHQ/s728-e1000/chrome-update.jpg)](<https://thehackernews.com/images/--Br-zb7NQb0/YPEUTqMvgsI/AAAAAAAADNw/cesEHjkHFKgyqC_MTP_ji5iUXUCeqoH1QCLcBGAsYHQ/s0/chrome-update.jpg>)\n\nGoogle has pushed out a new security update to Chrome browser for Windows, Mac, and Linux with multiple fixes, including a zero-day that it says is being exploited in the wild.\n\nThe latest patch resolves a total of eight issues, one of which concerns a type confusion issue in its V8 open-source and JavaScript engine ([CVE-2021-30563](<https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html>)). The search giant credited an anonymous researcher for reporting the flaw on July 12.\n\nAs is usually the case with actively exploited flaws, the company issued a terse statement acknowledging that \"an exploit for CVE-2021-30563 exists in the wild\" while refraining from sharing full details about the underlying vulnerability used in the attacks due to its serious nature and the possibility that doing so could lead to further abuse.\n\nCVE-2021-30563 also marks the ninth zero-day addressed by Google to combat real-world attacks against Chrome users since the start of the year \u2014\n\n * [**CVE-2021-21148**](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [**CVE-2021-21166**](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [**CVE-2021-21193**](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21206**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21220**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [**CVE-2021-21224**](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [**CVE-2021-30551**](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [**CVE-2021-30554**](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n\nChrome users are advised to update to the latest version (91.0.4472.164) by heading to Settings > Help > 'About Google Chrome' to mitigate the risk associated with the flaw.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-07-16T05:08:00", "type": "thn", "title": "Update Your Chrome Browser to Patch New Zero\u2011Day Bug Exploited in the Wild", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563"], "modified": "2021-07-16T05:08:47", "id": "THN:C736174C6B0ADC38AA88BC58F30271DA", "href": "https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:37:19", "description": "[![Google Chrome](https://thehackernews.com/images/-FOgCdN3CSOk/YUAgGS1bB1I/AAAAAAAADyc/2oKkq_Mon1AnpsrRVosSNgmXm6ZdbQTXACLcBGAsYHQ/s728-e1000/chrome-update.jpg)](<https://thehackernews.com/images/-FOgCdN3CSOk/YUAgGS1bB1I/AAAAAAAADyc/2oKkq_Mon1AnpsrRVosSNgmXm6ZdbQTXACLcBGAsYHQ/s0/chrome-update.jpg>)\n\nGoogle on Monday released security updates for Chrome web browser to address a total of 11 security issues, two of which it says are actively exploited zero-days in the wild.\n\nTracked as **CVE-2021-30632** and **CVE-2021-30633**, the [vulnerabilities](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html>) concern an out of bounds write in V8 JavaScript engine and a use after free flaw in Indexed DB API respectively, with the internet giant crediting anonymous researchers for reporting the bugs on September 8.\n\nAs is typically the case, the company said it's \"aware that exploits for CVE-2021-30632 and CVE-2021-30633 exist in the wild\" without sharing additional specifics about how, when, and where the vulnerabilities were exploited, or the threat actors that may be abusing them.\n\nWith these two security shortcomings, Google has addressed a total of 11 zero-day vulnerabilities in Chrome since the start of the year \u2014\n\n * [**CVE-2021-21148**](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [**CVE-2021-21166**](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [**CVE-2021-21193**](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21206**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21220**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [**CVE-2021-21224**](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [**CVE-2021-30551**](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [**CVE-2021-30554**](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n * [**CVE-2021-30563**](<https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html>) \\- Type confusion in V8\n\nChrome users are advised to update to the latest version (93.0.4577.82) for Windows, Mac, and Linux by heading to Settings > Help > 'About Google Chrome' to mitigate the risk associated with the flaws.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-09-14T04:08:00", "type": "thn", "title": "Update Google Chrome to Patch 2 New Zero-Day Flaws Under Attack", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633"], "modified": "2021-09-19T08:13:46", "id": "THN:1A836FDDE57334BC4DAFA65E6DFA02E4", "href": "https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:39:08", "description": "[![](https://thehackernews.com/images/-qsKUPh_-GYc/YBz2LhQRcgI/AAAAAAAABsU/xp30FnHWlk4M9WwbgZRSXy28jldlk3R2wCLcBGAsYHQ/s0/chrome-zero-day-vulnerability.jpg)](<https://thehackernews.com/images/-qsKUPh_-GYc/YBz2LhQRcgI/AAAAAAAABsU/xp30FnHWlk4M9WwbgZRSXy28jldlk3R2wCLcBGAsYHQ/s0/chrome-zero-day-vulnerability.jpg>)\n\nGoogle has patched a zero-day vulnerability in Chrome web browser for desktop that it says is being actively exploited in the wild.\n\nThe company released [88.0.4324.150](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>) for Windows, Mac, and Linux, with a fix for a heap buffer overflow flaw (CVE-2021-21148) in its V8 JavaScript rendering engine.\n\n\"Google is aware of reports that an exploit for CVE-2021-21148 exists in the wild,\" the company said in a statement.\n\nThe security flaw was reported to Google by Mattias Buelens on January 24.\n\nPreviously on February 2, Google [addressed six issues in Chrome](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html>), including one critical use after free vulnerability in Payments (CVE-2021-21142) and four high severity flaws in Extensions, Tab Groups, Fonts, and Navigation features.\n\nWhile it's typical of Google to limit details of the vulnerability until a majority of users are updated with the fix, the development comes weeks after Google and Microsoft [disclosed](<https://thehackernews.com/2021/01/n-korean-hackers-targeting-security.html>) attacks carried out by North Korean hackers against security researchers with an elaborate social engineering campaign to install a Windows backdoor.\n\nWith some researchers infected simply by visiting a fake research blog on fully patched systems running Windows 10 and Chrome browser, Microsoft, in a report published on January 28, had hinted that the attackers likely leveraged a Chrome zero-day to compromise the systems.\n\nAlthough it's not immediately clear if CVE-2021-21148 was used in these attacks, the timing of the revelations and the fact that Google's advisory came out exactly one day after Buelens reported the issue implies they could be related.\n\nIn a separate technical write-up, South Korean cybersecurity firm ENKI [said](<https://enki.co.kr/blog/2021/02/04/ie_0day.html>) the North Korean state-sponsored hacking group known as Lazarus made an unsuccessful attempt at targeting its security researchers with malicious MHTML files that, when opened, downloaded two payloads from a remote server, one of which contained a zero-day against Internet Explorer.\n\n\"The secondary payload contains the attack code that attacks the vulnerability of the Internet Explorer browser,\" ENKI researchers said.\n\nIt's worth noting that Google last year [fixed five Chrome zero-days](<https://thehackernews.com/2020/11/two-new-chrome-0-days-under-active.html>) that were actively exploited in the wild in a span of one month between October 20 and November 12.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-02-05T07:40:00", "type": "thn", "title": "New Chrome Browser 0-day Under Active Attack\u2014Update Immediately!", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21142", "CVE-2021-21148"], "modified": "2021-02-06T07:03:40", "id": "THN:2E0F12E8B4294632DF7D326E9360976B", "href": "https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:37:16", "description": "[![Chrome web browser](https://thehackernews.com/images/-EBTuV2RF5wo/YU6_b4n3Y4I/AAAAAAAAD5w/Rv4cfNWgTzsitUR4O-m9Hoo5Jsb-IyxJACLcBGAsYHQ/s728-e1000/chrome-update.jpg)](<https://thehackernews.com/images/-EBTuV2RF5wo/YU6_b4n3Y4I/AAAAAAAAD5w/Rv4cfNWgTzsitUR4O-m9Hoo5Jsb-IyxJACLcBGAsYHQ/s0/chrome-update.jpg>)\n\nGoogle on Friday rolled out an emergency security patch to its Chrome web browser to address a security flaw that's known to have an exploit in the wild.\n\nTracked as [CVE-2021-37973](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html>), the vulnerability has been described as [use after free](<https://cwe.mitre.org/data/definitions/416.html>) in [Portals API](<https://web.dev/hands-on-portals/>), a web page navigation system that enables a page to show another page as an inset and \"perform a seamless transition to a new state, where the formerly-inset page becomes the top-level document.\"\n\nCl\u00e9ment Lecigne of Google Threat Analysis Group (TAG) has been credited with reporting the flaw. Additional specifics pertaining to the weakness have not been disclosed in light of active exploitation and to allow a majority of the users to apply the patch, but the internet giant said it's \"aware that an exploit for CVE-2021-37973 exists in the wild.\"\n\nThe update arrives a day after Apple moved to close an actively exploited security hole in older versions of iOS and macOS ([CVE-2021-30869](<https://thehackernews.com/2021/09/urgent-apple-ios-and-macos-updates.html>)), which the TAG noted as being \"used in conjunction with a N-day remote code execution targeting WebKit.\" With the latest fix, Google has addressed a total of [12 zero-day flaws in Chrome](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) since the start of 2021:\n\n * [CVE-2021-21148](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [CVE-2021-21166](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [CVE-2021-21193](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [CVE-2021-21206](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [CVE-2021-21220](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [CVE-2021-21224](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [CVE-2021-30551](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [CVE-2021-30554](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n * [CVE-2021-30563](<https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html>) \\- Type confusion in V8\n * [CVE-2021-30632](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Out of bounds write in V8\n * [CVE-2021-30633](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Use-after-free in Indexed DB API\n\nChrome users are advised to update to the latest version (94.0.4606.61) for Windows, Mac, and Linux by heading to Settings > Help > 'About Google Chrome' to mitigate the risk associated with the flaw.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-09-25T06:39:00", "type": "thn", "title": "Urgent Chrome Update Released to Patch Actively Exploited Zero-Day Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-30869", "CVE-2021-37973"], "modified": "2021-09-27T04:38:24", "id": "THN:6A9CD6F085628D08978727C0FF597535", "href": "https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-09T12:37:14", "description": "[![Google Chrome](https://thehackernews.com/new-images/img/a/AVvXsEggQTDQ-V9WbcSJKwsXKGeYWFxP3jSKikqYhYG8xpFa_NiB7aFJV8tcR11eRFpoq9nIOMlHfbefT2pZC9vdUHCul3SAafHr4t5T-oIIj-H61WEAlv8x9Mfzo1cqzuxor4bqF090P_C7w7fQqzoSFEmUVm1PvbmzU9YENMC2O_ZAEkOC_qbBbzYZdzhA=s728-e1000)](<https://thehackernews.com/new-images/img/a/AVvXsEggQTDQ-V9WbcSJKwsXKGeYWFxP3jSKikqYhYG8xpFa_NiB7aFJV8tcR11eRFpoq9nIOMlHfbefT2pZC9vdUHCul3SAafHr4t5T-oIIj-H61WEAlv8x9Mfzo1cqzuxor4bqF090P_C7w7fQqzoSFEmUVm1PvbmzU9YENMC2O_ZAEkOC_qbBbzYZdzhA>)\n\nGoogle on Thursday pushed urgent security fixes for its Chrome browser, including a pair of new security weaknesses that the company said are being exploited in the wild, making them the fourth and fifth actively zero-days plugged this month alone.\n\nThe issues, designated as [CVE-2021-37975 and CVE-2021-37976](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html>), are part of a total of four patches, and concern a [use-after-free flaw](<https://cwe.mitre.org/data/definitions/416.html>) in V8 JavaScript and WebAssembly engine as well as an information leak in core.\n\nAs is usually the case, the tech giant has refrained from sharing any additional details regarding how these zero-day vulnerabilities were used in attacks so as to allow a majority of users to be updated with the patches, but noted that it's aware that \"exploits for CVE-2021-37975 and CVE-2021-37976 exist in the wild.\"\n\nAn anonymous researcher has been credited with reporting CVE-2021-37975. The discovery of CVE-2021-37976, on the other hand, involves Cl\u00e9ment Lecigne from Google Threat Analysis Group, who was also credited with [CVE-2021-37973](<https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html>), another actively exploited use-after-free vulnerability in Chrome's Portals API that was reported last week, raising the possibility that the two flaws may have been stringed together as part of an exploit chain to execute arbitrary code.\n\nWith the latest update, Google has addressed a record 14 zero-days in the web browser since the start of the year.\n\n * [CVE-2021-21148](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [CVE-2021-21166](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [CVE-2021-21193](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [CVE-2021-21206](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [CVE-2021-21220](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [CVE-2021-21224](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [CVE-2021-30551](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [CVE-2021-30554](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n * [CVE-2021-30563](<https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html>) \\- Type confusion in V8\n * [CVE-2021-30632](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Out of bounds write in V8\n * [CVE-2021-30633](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Use-after-free in Indexed DB API\n * [CVE-2021-37973](<https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html>) \\- Use-after-free in Portals\n\nChrome users are advised to update to the latest version (94.0.4606.71) for Windows, Mac, and Linux by heading to Settings > Help > 'About Google Chrome' to mitigate any potential risk of active exploitation.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-10-01T03:30:00", "type": "thn", "title": "Update Google Chrome ASAP to Patch 2 New Actively Exploited Zero-Day Flaws", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976"], "modified": "2021-10-05T05:27:09", "id": "THN:50D7C51FE6D69FC5DB5B37402AD0E412", "href": "https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:38:09", "description": "[![Chrome Update](https://thehackernews.com/new-images/img/a/AVvXsEgMs77BPvPvj6P-3E7i08R8I_ixvGQZgvS5p1CxbhBqiARNzNLx3R6X1fYdCRjiQmZfLY3-6HUY_hPXAucE_jFVypFTV0HG0XIru72uSOfwfn3mMcLC9j6XyeOCF7We4fYjthQ17-YmGUSvhPWEOlnBXakT_9U8IYdpMKEB6GeCFMJI8ihho5D-6JUO=s728-e1000)](<https://thehackernews.com/new-images/img/a/AVvXsEgMs77BPvPvj6P-3E7i08R8I_ixvGQZgvS5p1CxbhBqiARNzNLx3R6X1fYdCRjiQmZfLY3-6HUY_hPXAucE_jFVypFTV0HG0XIru72uSOfwfn3mMcLC9j6XyeOCF7We4fYjthQ17-YmGUSvhPWEOlnBXakT_9U8IYdpMKEB6GeCFMJI8ihho5D-6JUO>)\n\nGoogle on Thursday rolled out an emergency update for its Chrome web browser, including fixes for two zero-day vulnerabilities that it says are being actively exploited in the wild.\n\nTracked as **CVE-2021-38000** and **CVE-2021-38003**, the weaknesses relate to insufficient validation of untrusted input in a feature called Intents as well as a case of inappropriate implementation in V8 JavaScript and WebAssembly engine. The internet giant's Threat Analysis Group (TAG) has been credited with discovering and reporting the two flaws on September 15, 2021, and October 26, 2021, respectively.\n\n\"Google is aware that exploits for CVE-2021-38000 and CVE-2021-38003 exist in the wild,\" the company [noted](<https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html>) in an advisory without delving into technical specifics about how the two vulnerabilities were used in attacks or the threat actors that may have weaponized them.\n\nAlso addressed as part of this stable channel update is a [use-after-free](<https://cwe.mitre.org/data/definitions/416.html>) vulnerability in the Web Transport component (CVE-2021-38002), which was demonstrated for the first time at the [Tianfu Cup](<https://thehackernews.com/2021/10/windows-10-linux-ios-chrome-and-many.html>) contest held earlier this month in China. With these patches, Google has resolved a record 16 zero-days in the web browser since the start of the year \u2014\n\n * [**CVE-2021-21148**](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [**CVE-2021-21166**](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [**CVE-2021-21193**](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21206**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [**CVE-2021-21220**](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [**CVE-2021-21224**](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [**CVE-2021-30551**](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [**CVE-2021-30554**](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n * [**CVE-2021-30563**](<https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html>) \\- Type confusion in V8\n * [**CVE-2021-30632**](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Out of bounds write in V8\n * [**CVE-2021-30633**](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Use-after-free in Indexed DB API\n * [**CVE-2021-37973**](<https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html>) \\- Use-after-free in Portals\n * [**CVE-2021-37975**](<https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html>) \\- Use-after-free in V8\n * [**CVE-2021-37976**](<https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html>) \\- Information leak in core\n\nChrome users are advised to update to the latest version (95.0.4638.69) for Windows, Mac, and Linux by heading to Settings > Help > 'About Google Chrome' to mitigate any potential risk of active exploitation.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-10-29T04:08:00", "type": "thn", "title": "Google Releases Urgent Chrome Update to Patch 2 Actively Exploited 0-Day Bugs", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38002", "CVE-2021-38003"], "modified": "2021-10-29T04:08:52", "id": "THN:B7217784F9D53002315C9C43CCC73766", "href": "https://thehackernews.com/2021/10/google-releases-urgent-chrome-update-to.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:37:48", "description": "[![Google Chrome](https://thehackernews.com/new-images/img/a/AVvXsEibt_uA0VwMgumOtohRzrBSD-Inv5dv71ZMU1Hu4XYJFQxp8FVjEZzeLUuvttUyYx1xMxQJ16Nfw5Jdc7mPLfwoGoTeZqrLRMZ005Eu673XGL_uJrq7LDUpWojmmmN1YHSwVQcJQzL28acTco05Z7auS001HlgSR96GjvrE5gDr2M123luTRVFTFcAT=s728-e1000)](<https://thehackernews.com/new-images/img/a/AVvXsEibt_uA0VwMgumOtohRzrBSD-Inv5dv71ZMU1Hu4XYJFQxp8FVjEZzeLUuvttUyYx1xMxQJ16Nfw5Jdc7mPLfwoGoTeZqrLRMZ005Eu673XGL_uJrq7LDUpWojmmmN1YHSwVQcJQzL28acTco05Z7auS001HlgSR96GjvrE5gDr2M123luTRVFTFcAT>)\n\nGoogle has rolled out fixes for five security vulnerabilities in its Chrome web browser, including one which it says is being exploited in the wild, making it the [17th such weakness](<https://thehackernews.com/2021/10/google-releases-urgent-chrome-update-to.html>) to be disclosed since the start of the year.\n\nTracked as [CVE-2021-4102](<https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop_13.html>), the flaw relates to a [use-after-free bug](<https://cwe.mitre.org/data/definitions/416.html>) in the V8 JavaScript and WebAssembly engine, which could have severe consequences ranging from corruption of valid data to the execution of arbitrary code. An anonymous researcher has been credited with discovering and reporting the flaw.\n\nAs it stands, it's not known how the weakness is being abused in real-world attacks, but the internet giant issued a terse statement that said, \"it's aware of reports that an exploit for CVE-2021-4102 exists in the wild.\" This is done so in an attempt to ensure that a majority of users are updated with a fix and prevent further exploitation by other threat actors.\n\nCVE-2021-4102 is the second use-after-free vulnerability in V8 the company has remediated in less than three months following reports of active exploitation, with the previous vulnerability [CVE-2021-37975](<https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html>), also reported by an anonymous researcher, plugged in an update it shipped on September 30. It's not immediately clear if the two flaws bear any relation to one another.\n\nWith this latest update, Google has addressed a record 17 zero-days in Chrome this year alone \u2014\n\n * [CVE-2021-21148](<https://thehackernews.com/2021/02/new-chrome-browser-0-day-under-active.html>) \\- Heap buffer overflow in V8\n * [CVE-2021-21166](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>) \\- Object recycle issue in audio\n * [CVE-2021-21193](<https://thehackernews.com/2021/03/another-google-chrome-0-day-bug-found.html>) \\- Use-after-free in Blink\n * [CVE-2021-21206](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Use-after-free in Blink\n * [CVE-2021-21220](<https://thehackernews.com/2021/04/2-new-chrome-0-days-under-attack-update.html>) \\- Insufficient validation of untrusted input in V8 for x86_64\n * [CVE-2021-21224](<https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html>) \\- Type confusion in V8\n * [CVE-2021-30551](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>) \\- Type confusion in V8\n * [CVE-2021-30554](<https://thehackernews.com/2021/06/update-your-chrome-browser-to-patch-yet.html>) \\- Use-after-free in WebGL\n * [CVE-2021-30563](<https://thehackernews.com/2021/07/update-your-chrome-browser-to-patch-new.html>) \\- Type confusion in V8\n * [CVE-2021-30632](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Out of bounds write in V8\n * [CVE-2021-30633](<https://thehackernews.com/2021/09/update-google-chrome-to-patch-2-new.html>) \\- Use-after-free in Indexed DB API\n * [CVE-2021-37973](<https://thehackernews.com/2021/09/urgent-chrome-update-released-to-patch.html>) \\- Use-after-free in Portals \n * [CVE-2021-37975](<https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html>) \\- Use-after-free in V8\n * [CVE-2021-37976](<https://thehackernews.com/2021/09/update-google-chrome-asap-to-patch-2.html>) \\- Information leak in core\n * [CVE-2021-38000](<https://thehackernews.com/2021/10/google-releases-urgent-chrome-update-to.html>) \\- Insufficient validation of untrusted input in Intents\n * [CVE-2021-38003](<https://thehackernews.com/2021/10/google-releases-urgent-chrome-update-to.html>) \\- Inappropriate implementation in V8\n\nChrome users are recommended to update to the latest version (96.0.4664.110) for Windows, Mac, and Linux by heading to Settings > Help > 'About Google Chrome' to mitigate any potential risk of active exploitation.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-12-14T04:13:00", "type": "thn", "title": "Update Google Chrome to Patch New Zero-Day Exploit Detected in the Wild", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-4102"], "modified": "2021-12-14T04:30:59", "id": "THN:4CC79A3CEFEDEB0DC9CF87C5B9035209", "href": "https://thehackernews.com/2021/12/update-google-chrome-to-patch-new-zero.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-05-09T12:39:20", "description": "[![Israeli Hackers](https://thehackernews.com/images/-lnmWNBrSE9k/YPWhrFsftuI/AAAAAAAA4Tc/mV6atejnTU8JKQ98Latgx1poZRDDLxvXgCLcBGAsYHQ/s728-e1000/cyber.jpg)](<https://thehackernews.com/images/-lnmWNBrSE9k/YPWhrFsftuI/AAAAAAAA4Tc/mV6atejnTU8JKQ98Latgx1poZRDDLxvXgCLcBGAsYHQ/s0/cyber.jpg>)\n\nTwo of the zero-day Windows flaws rectified by Microsoft as part of its Patch Tuesday update earlier this week were weaponized by an Israel-based company called Candiru in a series of \"precision attacks\" to hack more than 100 journalists, academics, activists, and political dissidents globally.\n\nThe spyware vendor was also formally identified as the commercial surveillance company that Google's Threat Analysis Group (TAG) revealed as exploiting multiple zero-day vulnerabilities in Chrome browser to target victims located in Armenia, according to a report published by the University of Toronto's Citizen Lab.\n\n\"[Candiru](<https://www.forbes.com/sites/thomasbrewster/2019/10/03/meet-candiru-the-super-stealth-cyber-mercenaries-hacking-apple-and-microsoft-pcs-for-profit/>)'s apparent widespread presence, and the use of its surveillance technology against global civil society, is a potent reminder that the mercenary spyware industry contains many players and is prone to widespread abuse,\" Citizen Lab researchers [said](<https://citizenlab.ca/2021/07/hooking-candiru-another-mercenary-spyware-vendor-comes-into-focus/>). \"This case demonstrates, yet again, that in the absence of any international safeguards or strong government export controls, spyware vendors will sell to government clients who will routinely abuse their services.\"\n\nFounded in 2014, the private-sector offensive actor (PSOA) \u2014 codenamed \"Sourgum\" by Microsoft \u2014 is said to be the developer of an espionage toolkit dubbed DevilsTongue that's exclusively sold to governments and is capable of infecting and monitoring a broad range of devices across different platforms, including iPhones, Androids, Macs, PCs, and cloud accounts.\n\nCitizen Lab said it was able to recover a copy of Candiru's Windows spyware after obtaining a hard drive from \"a politically active victim in Western Europe,\" which was then reverse engineered to identify two never-before-seen Windows zero-day exploits for vulnerabilities tracked as [CVE-2021-31979 and CVE-2021-33771](<https://thehackernews.com/2021/07/update-your-windows-pcs-to-patch-117.html>) that were leveraged to install malware on victim boxes.\n\nThe infection chain relied on a mix of browser and Windows exploits, with the former served via single-use URLs sent to targets on messaging applications such as WhatsApp. Microsoft addressed both the privilege escalation flaws, which enable an adversary to escape browser sandboxes and gain kernel code execution, on July 13.\n\nThe intrusions culminated in the deployment of DevilsTongue, a modular C/C++-based backdoor equipped with a number of capabilities, including exfiltrating files, exporting messages saved in the encrypted messaging app Signal, and stealing cookies and passwords from Chrome, Internet Explorer, Firefox, Safari, and Opera browsers.\n\nMicrosoft's analysis of the digital weapon also found that it could abuse the stolen cookies from logged-in email and social media accounts like Facebook, Twitter, Gmail, Yahoo, Mail.ru, Odnoklassniki, and Vkontakte to collect information, read the victim's messages, retrieve photos, and even send messages on their behalf, thus allowing the threat actor to send malicious links directly from a compromised user's computer.\n\nSeparately, the Citizen Lab report also tied the two Google Chrome vulnerabilities disclosed by the search giant on Wednesday \u2014 [CVE-2021-21166 and CVE-2021-30551](<https://thehackernews.com/2021/07/google-details-ios-chrome-ie-zero-day.html>) \u2014 to the Tel Aviv company, noting overlaps in the websites that were used to distribute the exploits.\n\nFurthermore, 764 domains linked to Candiru's spyware infrastructure were uncovered, with many of the domains masquerading as advocacy organizations such as Amnesty International, the Black Lives Matter movement, as well as media companies, and other civil-society themed entities. Some of the systems under their control were operated from Saudi Arabia, Israel, U.A.E., Hungary, and Indonesia.\n\nOver 100 victims of SOURGUM's malware have been identified to date, with targets located in Palestine, Israel, Iran, Lebanon, Yemen, Spain (Catalonia), United Kingdom, Turkey, Armenia, and Singapore. \"These attacks have largely targeted consumer accounts, indicating Sourgum's customers were pursuing particular individuals,\" Microsoft's General Manager of Digital Security Unit, Cristin Goodwin, [said](<https://blogs.microsoft.com/on-the-issues/2021/07/15/cyberweapons-cybersecurity-sourgum-malware/>).\n\nThe latest report arrives as TAG researchers Maddie Stone and Clement Lecigne noted a surge in attackers using more zero-day exploits in their cyber offensives, in part fueled by more commercial vendors selling access to zero-days than in the early 2010s.\n\n\"Private-sector offensive actors are private companies that manufacture and sell cyberweapons in hacking-as-a-service packages, often to government agencies around the world, to hack into their targets' computers, phones, network infrastructure, and other devices,\" Microsoft Threat Intelligence Center (MSTIC) [said](<https://www.microsoft.com/security/blog/2021/07/15/protecting-customers-from-a-private-sector-offensive-actor-using-0-day-exploits-and-devilstongue-malware/>) in a technical rundown.\n\n\"With these hacking packages, usually the government agencies choose the targets and run the actual operations themselves. The tools, tactics, and procedures used by these companies only adds to the complexity, scale, and sophistication of attacks,\" MSTIC added.\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-07-16T11:13:00", "type": "thn", "title": "Israeli Firm Helped Governments Target Journalists, Activists with 0-Days and Spyware", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 7.2, "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21166", "CVE-2021-30551", "CVE-2021-31979", "CVE-2021-33771"], "modified": "2021-07-19T16:01:00", "id": "THN:CDCF433A7837180E1F294791C672C5BB", "href": "https://thehackernews.com/2021/07/israeli-firm-helped-governments-target.html", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-05-09T12:39:21", "description": "[![iOS, Chrome, IE Zero-Day Flaws](https://thehackernews.com/images/-xmPJ5TMTpac/YO_wfpf1LkI/AAAAAAAADM4/xSKsZYAbLBYJjYvNQilqUM9z0lf0Rx7_gCLcBGAsYHQ/s728-e1000/chrome.jpg)](<https://thehackernews.com/images/-xmPJ5TMTpac/YO_wfpf1LkI/AAAAAAAADM4/xSKsZYAbLBYJjYvNQilqUM9z0lf0Rx7_gCLcBGAsYHQ/s0/chrome.jpg>)\n\nThreat intelligence researchers from Google on Wednesday [shed more light](<https://blog.google/threat-analysis-group/how-we-protect-users-0-day-attacks/>) on four in-the-wild zero-days in Chrome, Safari, and Internet Explorer browsers that were exploited by malicious actors in different campaigns since the start of the year.\n\nWhat's more, three of the four zero-days were engineered by commercial providers and sold to and used by government-backed actors, contributing to an uptick in real-world attacks. The list of now-patched vulnerabilities is as follows -\n\n * [**CVE-2021-1879**](<https://thehackernews.com/2021/03/apple-issues-urgent-patch-update-for.html>): Use-After-Free in QuickTimePluginReplacement (Apple WebKit)\n * [**CVE-2021-21166**](<https://thehackernews.com/2021/03/new-chrome-0-day-bug-under-active.html>): Chrome Object Lifecycle Issue in Audio\n * [**CVE-2021-30551**](<https://thehackernews.com/2021/06/new-chrome-0-day-bug-under-active.html>): Chrome Type Confusion in V8\n * [**CVE-2021-33742**](<https://thehackernews.com/2021/06/update-your-windows-computers-to-patch.html>): Internet Explorer out-of-bounds write in MSHTML\n\nBoth Chrome zero-days \u2014 CVE-2021-21166 and CVE-2021-30551 \u2014 are believed to have been used by the same actor, and were delivered as one-time links sent via email to targets located in Armenia, with the links redirecting unsuspecting users to attacker-controlled domains that masqueraded as legitimate websites of interest to the recipients.\n\nThe malicious websites took charge of fingerprinting the devices, including collecting system information about the clients, before delivering a second-stage payload.\n\nWhen Google rolled out a patch for CVE-2021-30551, Shane Huntley, Director of Google's Threat Analysis Group (TAG), revealed that the vulnerability was leveraged by the same actor that abused CVE-2021-33742, an actively exploited remote code execution flaw in Windows MSHTML platform that was addressed by Microsoft as part of its [Patch Tuesday update](<https://thehackernews.com/2021/06/update-your-windows-computers-to-patch.html>) on June 8.\n\nThe two zero-days were provided by a commercial exploit broker to a nation-state adversary, which used them in limited attacks against targets in Eastern Europe and the Middle East, Huntley previously added.\n\n[![](https://thehackernews.com/images/--ol-CfJ3-bE/YO_tDkpfuNI/AAAAAAAADMw/bonGU0wpX_QzAsMNe5_Eh_0_Nb4OAma_QCLcBGAsYHQ/s0/zero-day.jpg)](<https://thehackernews.com/images/--ol-CfJ3-bE/YO_tDkpfuNI/AAAAAAAADMw/bonGU0wpX_QzAsMNe5_Eh_0_Nb4OAma_QCLcBGAsYHQ/s0/zero-day.jpg>)\n\nNow according to a technical report published by the team, all the three zero-days were \"developed by the same commercial surveillance company that sold these capabilities to two different government-backed actors,\" adding the Internet Explorer flaw was used in a campaign targeting Armenian users with malicious Office documents that loaded web content within the web browser.\n\nGoogle did not disclose the identities of the exploit broker or the two threat actors that used the vulnerabilities as part of their attacks.\n\n## SolarWinds Hackers Exploited iOS Zero-Day\n\nThe Safari zero-day, in contrast, concerned a WebKit flaw that could enable adversaries to process maliciously crafted web content that may result in universal cross-site scripting attacks. The issue was rectified by Apple on March 26, 2021.\n\nAttacks leveraging CVE-2021-1879, which Google attributed to a \"likely Russian government-backed actor,\" were executed by means of sending malicious links to government officials over LinkedIn that, when clicked from an iOS device, redirected the user to a rogue domain that served the next-stage payloads.\n\nIt's worth noting that the offensive also mirrors a [wave of targeted attacks](<https://thehackernews.com/2021/05/solarwinds-hackers-target-think-tanks.html>) unleashed by Russian hackers tracked as Nobelium, which was found abusing the vulnerability to strike government agencies, think tanks, consultants, and non-governmental organizations as part of an email phishing campaign.\n\nNobelium, a threat actor linked to the Russian Foreign Intelligence Service (SVR), is also suspected of orchestrating the [SolarWinds supply chain attack](<https://thehackernews.com/2020/12/us-agencies-and-fireeye-were-hacked.html>) late last year. It's known by other aliases such as APT29, UNC2452 (FireEye), SolarStorm (Unit 42), StellarParticle (Crowdstrike), Dark Halo (Volexity), and Iron Ritual (Secureworks).\n\n\"Halfway into 2021, there have been [33 zero-day exploits](<https://googleprojectzero.github.io/0days-in-the-wild/rca.html>) used in attacks that have been publicly disclosed this year \u2014 11 more than the total number from 2020,\" TAG researchers Maddie Stone and Clement Lecigne noted. \"While there is an increase in the number of zero-day exploits being used, we believe greater detection and disclosure efforts are also contributing to the upward trend.\"\n\n \n\n\nFound this article interesting? Follow THN on [Facebook](<https://www.facebook.com/thehackernews>), [Twitter _\uf099_](<https://twitter.com/thehackersnews>) and [LinkedIn](<https://www.linkedin.com/company/thehackernews/>) to read more exclusive content we post.\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-07-15T08:25:00", "type": "thn", "title": "Google Details iOS, Chrome, IE Zero-Day Flaws Exploited Recently in the Wild", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-1879", "CVE-2021-21166", "CVE-2021-30551", "CVE-2021-33742"], "modified": "2021-07-15T12:45:33", "id": "THN:BBBFDA7EEE18F813A5DA572FD390D528", "href": "https://thehackernews.com/2021/07/google-details-ios-chrome-ie-zero-day.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "cisa_kev": [{"lastseen": "2022-08-10T17:26:47", "description": "Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-11-03T00:00:00", "type": "cisa_kev", "title": "Chromium V8 Use-After-Free Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21193"], "modified": "2021-11-03T00:00:00", "id": "CISA-KEV-CVE-2021-21193", "href": "", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-10T17:26:47", "description": "Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-11-03T00:00:00", "type": "cisa_kev", "title": "Chromium V8 JavaScript Rendering Engine Heap Buffer Overflow Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-11-03T00:00:00", "id": "CISA-KEV-CVE-2021-21148", "href": "", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-10T17:26:47", "description": "Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-11-03T00:00:00", "type": "cisa_kev", "title": "Google Chrome Heap Buffer Overflow in WebAudio Vulnerability", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21166"], "modified": "2021-11-03T00:00:00", "id": "CISA-KEV-CVE-2021-21166", "href": "", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "veracode": [{"lastseen": "2022-07-26T13:51:19", "description": "chromium is vulnerable to arbitrary code execution. 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(CVE-2021-21176)\n\n - Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21177)\n\n - Inappropriate implementation in Compositing in Google Chrome on Linux and Windows prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21178)\n\n - Use after free in Network Internals in Google Chrome on Linux prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21179)\n\n - Use after free in tab search in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21180)\n\n - Side-channel information leakage in autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21181)\n\n - Insufficient policy enforcement in navigations in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21182)\n\n - Inappropriate implementation in performance APIs in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21183, CVE-2021-21184)\n\n - Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome Extension. (CVE-2021-21185)\n\n - Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.\n (CVE-2021-21186)\n\n - Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name. (CVE-2021-21187)\n\n - Use after free in Blink in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21188)\n\n - Insufficient policy enforcement in payments in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21189)\n\n - Uninitialized data in PDFium in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted PDF file. (CVE-2021-21190)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-04-19T00:00:00", "type": "nessus", "title": "Fedora 33 : chromium (2021-4740239e28)", "bulletinFamily": "scanner", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2022-01-18T00:00:00", "cpe": ["cpe:/o:fedoraproject:fedora:33", "p-cpe:/a:fedoraproject:fedora:chromium"], "id": "FEDORA_2021-4740239E28.NASL", "href": "https://www.tenable.com/plugins/nessus/148782", "sourceData": "##\n# (C) Tenable Network Security, Inc.\n##\n# The descriptive text and package checks in this plugin were\n# extracted from Fedora Security Advisory FEDORA-2021-4740239e28\n#\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(148782);\n script_version(\"1.5\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/01/18\");\n\n script_cve_id(\n \"CVE-2021-21159\",\n \"CVE-2021-21160\",\n \"CVE-2021-21161\",\n \"CVE-2021-21162\",\n \"CVE-2021-21163\",\n \"CVE-2021-21164\",\n \"CVE-2021-21165\",\n \"CVE-2021-21166\",\n \"CVE-2021-21167\",\n \"CVE-2021-21168\",\n \"CVE-2021-21169\",\n \"CVE-2021-21170\",\n \"CVE-2021-21171\",\n \"CVE-2021-21172\",\n \"CVE-2021-21173\",\n \"CVE-2021-21174\",\n \"CVE-2021-21175\",\n \"CVE-2021-21176\",\n \"CVE-2021-21177\",\n \"CVE-2021-21178\",\n \"CVE-2021-21179\",\n \"CVE-2021-21180\",\n \"CVE-2021-21181\",\n \"CVE-2021-21182\",\n \"CVE-2021-21183\",\n \"CVE-2021-21184\",\n \"CVE-2021-21185\",\n \"CVE-2021-21186\",\n \"CVE-2021-21187\",\n \"CVE-2021-21188\",\n \"CVE-2021-21189\",\n \"CVE-2021-21190\"\n );\n script_xref(name:\"FEDORA\", value:\"2021-4740239e28\");\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"Fedora 33 : chromium (2021-4740239e28)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote Fedora host is missing one or more security updates.\");\n script_set_attribute(attribute:\"description\", value:\n\"The remote Fedora 33 host has a package installed that is affected by multiple vulnerabilities as referenced in the\nFEDORA-2021-4740239e28 advisory.\n\n - Heap buffer overflow in TabStrip in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21159, CVE-2021-21161)\n\n - Heap buffer overflow in WebAudio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21160)\n\n - Use after free in WebRTC in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially\n exploit heap corruption via a crafted HTML page. (CVE-2021-21162)\n\n - Insufficient data validation in Reader Mode in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote\n attacker to leak cross-origin data via a crafted HTML page and a malicious server. (CVE-2021-21163)\n\n - Insufficient data validation in Chrome on iOS in Google Chrome on iOS prior to 89.0.4389.72 allowed a\n remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21164)\n\n - Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit\n heap corruption via a crafted HTML page. (CVE-2021-21165, CVE-2021-21166)\n\n - Use after free in bookmarks in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21167)\n\n - Insufficient policy enforcement in appcache in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21168)\n\n - Out of bounds memory access in V8 in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially perform out of bounds memory access via a crafted HTML page. (CVE-2021-21169)\n\n - Incorrect security UI in Loader in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had\n compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21170)\n\n - Incorrect security UI in TabStrip and Navigation in Google Chrome on Android prior to 89.0.4389.72 allowed\n a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21171)\n\n - Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72\n allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page. (CVE-2021-21172)\n\n - Side-channel information leakage in Network Internals in Google Chrome prior to 89.0.4389.72 allowed a\n remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21173)\n\n - Inappropriate implementation in Referrer in Google Chrome prior to 89.0.4389.72 allowed a remote attacker\n to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21174)\n\n - Inappropriate implementation in Site isolation in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21175)\n\n - Inappropriate implementation in full screen mode in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21176)\n\n - Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21177)\n\n - Inappropriate implementation in Compositing in Google Chrome on Linux and Windows prior to 89.0.4389.72\n allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21178)\n\n - Use after free in Network Internals in Google Chrome on Linux prior to 89.0.4389.72 allowed a remote\n attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21179)\n\n - Use after free in tab search in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21180)\n\n - Side-channel information leakage in autofill in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21181)\n\n - Insufficient policy enforcement in navigations in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML\n page. (CVE-2021-21182)\n\n - Inappropriate implementation in performance APIs in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21183, CVE-2021-21184)\n\n - Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker\n who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome\n Extension. (CVE-2021-21185)\n\n - Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an\n attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.\n (CVE-2021-21186)\n\n - Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to perform domain spoofing via IDN homographs via a crafted domain name. (CVE-2021-21187)\n\n - Use after free in Blink in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially\n exploit heap corruption via a crafted HTML page. (CVE-2021-21188)\n\n - Insufficient policy enforcement in payments in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21189)\n\n - Uninitialized data in PDFium in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain\n potentially sensitive information from process memory via a crafted PDF file. (CVE-2021-21190)\n\nNote that Nessus has not tested for this issue but has instead relied only on the application's self-reported version\nnumber.\");\n script_set_attribute(attribute:\"see_also\", value:\"https://bodhi.fedoraproject.org/updates/FEDORA-2021-4740239e28\");\n script_set_attribute(attribute:\"solution\", value:\n\"Update the affected chromium package.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2021-21190\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/03/02\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/03/29\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/04/19\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:fedoraproject:fedora:33\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:fedoraproject:fedora:chromium\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"Fedora Local Security Checks\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/RedHat/release\", \"Host/RedHat/rpm-list\");\n\n exit(0);\n}\n\n\ninclude('audit.inc');\ninclude('global_settings.inc');\ninclude('rpm.inc');\n\nif (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nrelease = get_kb_item('Host/RedHat/release');\nif (isnull(release) || 'Fedora' >!< release) audit(AUDIT_OS_NOT, 'Fedora');\nos_ver = pregmatch(pattern: \"Fedora.*release ([0-9]+)\", string:release);\nif (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Fedora');\nos_ver = os_ver[1];\nif (! preg(pattern:\"^33([^0-9]|$)\", string:os_ver)) audit(AUDIT_OS_NOT, 'Fedora 33', 'Fedora ' + os_ver);\n\nif (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);\n\ncpu = get_kb_item('Host/cpu');\nif (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);\nif ('x86_64' >!< cpu && cpu !~ \"^i[3-6]86$\" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Fedora', cpu);\n\npkgs = [\n {'reference':'chromium-89.0.4389.90-3.fc33', 'release':'FC33', 'rpm_spec_vers_cmp':TRUE, 'allowmaj':TRUE}\n];\n\nflag = 0;\nforeach package_array ( pkgs ) {\n reference = NULL;\n release = NULL;\n sp = NULL;\n cpu = NULL;\n el_string = NULL;\n rpm_spec_vers_cmp = NULL;\n epoch = NULL;\n allowmaj = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if (!empty_or_null(package_array['release'])) release = package_array['release'];\n if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];\n if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];\n if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];\n if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];\n if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];\n if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];\n if (reference && release) {\n if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'chromium');\n}\n", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-01-11T14:46:13", "description": "This update for chromium fixes the following issues :\n\nUpdate to 89.0.4389.72 (boo#1182358, boo#1182960) :\n\n - CVE-2021-21159: Heap buffer overflow in TabStrip.\n\n - CVE-2021-21160: Heap buffer overflow in WebAudio.\n\n - CVE-2021-21161: Heap buffer overflow in TabStrip.\n\n - CVE-2021-21162: Use after free in WebRTC.\n\n - CVE-2021-21163: Insufficient data validation in Reader Mode.\n\n - CVE-2021-21164: Insufficient data validation in Chrome for iOS.\n\n - CVE-2021-21165: Object lifecycle issue in audio.\n\n - CVE-2021-21166: Object lifecycle issue in audio.\n\n - CVE-2021-21167: Use after free in bookmarks.\n\n - CVE-2021-21168: Insufficient policy enforcement in appcache.\n\n - CVE-2021-21169: Out of bounds memory access in V8.\n\n - CVE-2021-21170: Incorrect security UI in Loader.\n\n - CVE-2021-21171: Incorrect security UI in TabStrip and Navigation.\n\n - CVE-2021-21172: Insufficient policy enforcement in File System API.\n\n - CVE-2021-21173: Side-channel information leakage in Network Internals.\n\n - CVE-2021-21174: Inappropriate implementation in Referrer.\n\n - CVE-2021-21175: Inappropriate implementation in Site isolation.\n\n - CVE-2021-21176: Inappropriate implementation in full screen mode.\n\n - CVE-2021-21177: Insufficient policy enforcement in Autofill.\n\n - CVE-2021-21178: Inappropriate implementation in Compositing.\n\n - CVE-2021-21179: Use after free in Network Internals.\n\n - CVE-2021-21180: Use after free in tab search.\n\n - CVE-2020-27844: Heap buffer overflow in OpenJPEG.\n\n - CVE-2021-21181: Side-channel information leakage in autofill.\n\n - CVE-2021-21182: Insufficient policy enforcement in navigations.\n\n - CVE-2021-21183: Inappropriate implementation in performance APIs.\n\n - CVE-2021-21184: Inappropriate implementation in performance APIs.\n\n - CVE-2021-21185: Insufficient policy enforcement in extensions.\n\n - CVE-2021-21186: Insufficient policy enforcement in QR scanning.\n\n - CVE-2021-21187: Insufficient data validation in URL formatting.\n\n - CVE-2021-21188: Use after free in Blink.\n\n - CVE-2021-21189: Insufficient policy enforcement in payments.\n\n - CVE-2021-21190: Uninitialized Use in PDFium.\n\n - CVE-2021-21149: Stack overflow in Data Transfer.\n\n - CVE-2021-21150: Use after free in Downloads.\n\n - CVE-2021-21151: Use after free in Payments.\n\n - CVE-2021-21152: Heap buffer overflow in Media.\n\n - CVE-2021-21153: Stack overflow in GPU Process. \n\n - CVE-2021-21154: Heap buffer overflow in Tab Strip.\n\n - CVE-2021-21155: Heap buffer overflow in Tab Strip.\n\n - CVE-2021-21156: Heap buffer overflow in V8.\n\n - CVE-2021-21157: Use after free in Web Sockets. \n\n - Fixed Sandbox with glibc 2.33 (boo#1182233)\n\n - Fixed an issue where chromium hangs on opening (boo#1182775).", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-03-10T00:00:00", "type": "nessus", "title": "openSUSE Security Update : chromium (openSUSE-2021-392)", "bulletinFamily": "scanner", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 8.5, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2022-05-10T00:00:00", "cpe": ["p-cpe:/a:novell:opensuse:chromedriver", "p-cpe:/a:novell:opensuse:chromedriver-debuginfo", "p-cpe:/a:novell:opensuse:chromium", "p-cpe:/a:novell:opensuse:chromium-debuginfo", "cpe:/o:novell:opensuse:15.2"], "id": "OPENSUSE-2021-392.NASL", "href": "https://www.tenable.com/plugins/nessus/147606", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from openSUSE Security Update openSUSE-2021-392.\n#\n# The text description of this plugin is (C) SUSE LLC.\n#\n\ninclude('compat.inc');\n\nif (description)\n{\n script_id(147606);\n script_version(\"1.9\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2022/05/10\");\n\n script_cve_id(\n \"CVE-2020-27844\",\n \"CVE-2021-21149\",\n \"CVE-2021-21150\",\n \"CVE-2021-21151\",\n \"CVE-2021-21152\",\n \"CVE-2021-21153\",\n \"CVE-2021-21154\",\n \"CVE-2021-21155\",\n \"CVE-2021-21156\",\n \"CVE-2021-21157\",\n \"CVE-2021-21159\",\n \"CVE-2021-21160\",\n \"CVE-2021-21161\",\n \"CVE-2021-21162\",\n \"CVE-2021-21163\",\n \"CVE-2021-21164\",\n \"CVE-2021-21165\",\n \"CVE-2021-21166\",\n \"CVE-2021-21167\",\n \"CVE-2021-21168\",\n \"CVE-2021-21169\",\n \"CVE-2021-21170\",\n \"CVE-2021-21171\",\n \"CVE-2021-21172\",\n \"CVE-2021-21173\",\n \"CVE-2021-21174\",\n \"CVE-2021-21175\",\n \"CVE-2021-21176\",\n \"CVE-2021-21177\",\n \"CVE-2021-21178\",\n \"CVE-2021-21179\",\n \"CVE-2021-21180\",\n \"CVE-2021-21181\",\n \"CVE-2021-21182\",\n \"CVE-2021-21183\",\n \"CVE-2021-21184\",\n \"CVE-2021-21185\",\n \"CVE-2021-21186\",\n \"CVE-2021-21187\",\n \"CVE-2021-21188\",\n \"CVE-2021-21189\",\n \"CVE-2021-21190\"\n );\n script_xref(name:\"CISA-KNOWN-EXPLOITED\", value:\"2021/11/17\");\n\n script_name(english:\"openSUSE Security Update : chromium (openSUSE-2021-392)\");\n\n script_set_attribute(attribute:\"synopsis\", value:\n\"The remote openSUSE host is missing a security update.\");\n script_set_attribute(attribute:\"description\", value:\n\"This update for chromium fixes the following issues :\n\nUpdate to 89.0.4389.72 (boo#1182358, boo#1182960) :\n\n - 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CVE-2021-21190: Uninitialized Use in PDFium.\n\n - CVE-2021-21149: Stack overflow in Data Transfer.\n\n - CVE-2021-21150: Use after free in Downloads.\n\n - CVE-2021-21151: Use after free in Payments.\n\n - CVE-2021-21152: Heap buffer overflow in Media.\n\n - CVE-2021-21153: Stack overflow in GPU Process. \n\n - CVE-2021-21154: Heap buffer overflow in Tab Strip.\n\n - CVE-2021-21155: Heap buffer overflow in Tab Strip.\n\n - CVE-2021-21156: Heap buffer overflow in V8.\n\n - CVE-2021-21157: Use after free in Web Sockets. \n\n - Fixed Sandbox with glibc 2.33 (boo#1182233)\n\n - Fixed an issue where chromium hangs on opening\n (boo#1182775).\");\n script_set_attribute(attribute:\"see_also\", value:\"https://bugzilla.opensuse.org/show_bug.cgi?id=1182233\");\n script_set_attribute(attribute:\"see_also\", value:\"https://bugzilla.opensuse.org/show_bug.cgi?id=1182358\");\n script_set_attribute(attribute:\"see_also\", value:\"https://bugzilla.opensuse.org/show_bug.cgi?id=1182775\");\n script_set_attribute(attribute:\"solution\", value:\n\"Update the affected chromium packages.\");\n script_set_cvss_base_vector(\"CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:C\");\n script_set_cvss_temporal_vector(\"CVSS2#E:H/RL:OF/RC:C\");\n script_set_cvss3_base_vector(\"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H\");\n script_set_cvss3_temporal_vector(\"CVSS:3.0/E:H/RL:O/RC:C\");\n script_set_attribute(attribute:\"cvss_score_source\", value:\"CVE-2020-27844\");\n script_set_attribute(attribute:\"cvss3_score_source\", value:\"CVE-2021-21155\");\n\n script_set_attribute(attribute:\"exploitability_ease\", value:\"Exploits are available\");\n script_set_attribute(attribute:\"exploit_available\", value:\"true\");\n\n script_set_attribute(attribute:\"vuln_publication_date\", value:\"2021/01/05\");\n script_set_attribute(attribute:\"patch_publication_date\", value:\"2021/03/08\");\n script_set_attribute(attribute:\"plugin_publication_date\", value:\"2021/03/10\");\n\n script_set_attribute(attribute:\"plugin_type\", value:\"local\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:novell:opensuse:chromedriver\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:novell:opensuse:chromedriver-debuginfo\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:novell:opensuse:chromium\");\n script_set_attribute(attribute:\"cpe\", value:\"p-cpe:/a:novell:opensuse:chromium-debuginfo\");\n script_set_attribute(attribute:\"cpe\", value:\"cpe:/o:novell:opensuse:15.2\");\n script_set_attribute(attribute:\"generated_plugin\", value:\"current\");\n script_end_attributes();\n\n script_category(ACT_GATHER_INFO);\n script_family(english:\"SuSE Local Security Checks\");\n\n script_copyright(english:\"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.\");\n\n script_dependencies(\"ssh_get_info.nasl\");\n script_require_keys(\"Host/local_checks_enabled\", \"Host/SuSE/release\", \"Host/SuSE/rpm-list\", \"Host/cpu\");\n\n exit(0);\n}\n\n\ninclude(\"audit.inc\");\ninclude(\"global_settings.inc\");\ninclude(\"rpm.inc\");\n\nif (!get_kb_item(\"Host/local_checks_enabled\")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nrelease = get_kb_item(\"Host/SuSE/release\");\nif (isnull(release) || release =~ \"^(SLED|SLES)\") audit(AUDIT_OS_NOT, \"openSUSE\");\nif (release !~ \"^(SUSE15\\.2)$\") audit(AUDIT_OS_RELEASE_NOT, \"openSUSE\", \"15.2\", release);\nif (!get_kb_item(\"Host/SuSE/rpm-list\")) audit(AUDIT_PACKAGE_LIST_MISSING);\n\nourarch = get_kb_item(\"Host/cpu\");\nif (!ourarch) audit(AUDIT_UNKNOWN_ARCH);\nif (ourarch !~ \"^(x86_64)$\") audit(AUDIT_ARCH_NOT, \"x86_64\", ourarch);\n\nflag = 0;\n\nif ( rpm_check(release:\"SUSE15.2\", reference:\"chromedriver-89.0.4389.72-lp152.2.77.1\") ) flag++;\nif ( rpm_check(release:\"SUSE15.2\", reference:\"chromedriver-debuginfo-89.0.4389.72-lp152.2.77.1\") ) flag++;\nif ( rpm_check(release:\"SUSE15.2\", reference:\"chromium-89.0.4389.72-lp152.2.77.1\", allowmaj:TRUE) ) flag++;\nif ( rpm_check(release:\"SUSE15.2\", reference:\"chromium-debuginfo-89.0.4389.72-lp152.2.77.1\", allowmaj:TRUE) ) flag++;\n\nif (flag)\n{\n if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());\n else security_hole(0);\n exit(0);\n}\nelse\n{\n tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, \"chromedriver / chromedriver-debuginfo / chromium / etc\");\n}\n", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}, {"lastseen": "2023-01-11T14:44:25", "description": "The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-c88a96bd4b advisory.\n\n - Stack buffer overflow in Data Transfer in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (CVE-2021-21149)\n\n - Use after free in Downloads in Google Chrome on Windows prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.\n (CVE-2021-21150)\n\n - Use after free in Payments in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (CVE-2021-21151)\n\n - Heap buffer overflow in Media in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21152)\n\n - Stack buffer overflow in GPU Process in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (CVE-2021-21153)\n\n - Heap buffer overflow in Tab Strip in Google Chrome prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.\n (CVE-2021-21154)\n\n - Heap buffer overflow in Tab Strip in Google Chrome on Windows prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (CVE-2021-21155)\n\n - Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted script. (CVE-2021-21156)\n\n - Use after free in Web Sockets in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21157)\n\n - Heap buffer overflow in TabStrip in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21159, CVE-2021-21161)\n\n - Heap buffer overflow in WebAudio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21160)\n\n - Use after free in WebRTC in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21162)\n\n - Insufficient data validation in Reader Mode in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page and a malicious server. (CVE-2021-21163)\n\n - Insufficient data validation in Chrome on iOS in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21164)\n\n - Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21165, CVE-2021-21166)\n\n - Use after free in bookmarks in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21167)\n\n - Insufficient policy enforcement in appcache in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21168)\n\n - Out of bounds memory access in V8 in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (CVE-2021-21169)\n\n - Incorrect security UI in Loader in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21170)\n\n - Incorrect security UI in TabStrip and Navigation in Google Chrome on Android prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21171)\n\n - Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page. (CVE-2021-21172)\n\n - Side-channel information leakage in Network Internals in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21173)\n\n - Inappropriate implementation in Referrer in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21174)\n\n - Inappropriate implementation in Site isolation in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21175)\n\n - Inappropriate implementation in full screen mode in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21176)\n\n - Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21177)\n\n - Inappropriate implementation in Compositing in Google Chrome on Linux and Windows prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21178)\n\n - Use after free in Network Internals in Google Chrome on Linux prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21179)\n\n - Use after free in tab search in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21180)\n\n - Side-channel information leakage in autofill in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21181)\n\n - Insufficient policy enforcement in navigations in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21182)\n\n - Inappropriate implementation in performance APIs in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21183, CVE-2021-21184)\n\n - Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome Extension. (CVE-2021-21185)\n\n - Insufficient policy enforcement in QR scanning in Google Chrome on iOS prior to 89.0.4389.72 allowed an attacker who convinced the user to scan a QR code to bypass navigation restrictions via a crafted QR code.\n (CVE-2021-21186)\n\n - Insufficient data validation in URL formatting in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to perform domain spoofing via IDN homographs via a crafted domain name. (CVE-2021-21187)\n\n - Use after free in Blink in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21188)\n\n - Insufficient policy enforcement in payments in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21189)\n\n - Uninitialized data in PDFium in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted PDF file. 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(CVE-2021-21153)\n\n - Heap buffer overflow in Tab Strip in Google Chrome prior to 88.0.4324.182 allowed a remote attacker who\n had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.\n (CVE-2021-21154)\n\n - Heap buffer overflow in Tab Strip in Google Chrome on Windows prior to 88.0.4324.182 allowed a remote\n attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted\n HTML page. (CVE-2021-21155)\n\n - Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to\n potentially exploit heap corruption via a crafted script. (CVE-2021-21156)\n\n - Use after free in Web Sockets in Google Chrome on Linux prior to 88.0.4324.182 allowed a remote attacker\n to potentially exploit heap corruption via a crafted HTML page. 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(CVE-2021-21169)\n\n - Incorrect security UI in Loader in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had\n compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21170)\n\n - Incorrect security UI in TabStrip and Navigation in Google Chrome on Android prior to 89.0.4389.72 allowed\n a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21171)\n\n - Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72\n allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page. (CVE-2021-21172)\n\n - Side-channel information leakage in Network Internals in Google Chrome prior to 89.0.4389.72 allowed a\n remote attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21173)\n\n - Inappropriate implementation in Referrer in Google Chrome prior to 89.0.4389.72 allowed a remote attacker\n to bypass navigation restrictions via a crafted HTML page. (CVE-2021-21174)\n\n - Inappropriate implementation in Site isolation in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21175)\n\n - Inappropriate implementation in full screen mode in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. (CVE-2021-21176)\n\n - Insufficient policy enforcement in Autofill in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21177)\n\n - Inappropriate implementation in Compositing in Google Chrome on Linux and Windows prior to 89.0.4389.72\n allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.\n (CVE-2021-21178)\n\n - Use after free in Network Internals in Google Chrome on Linux prior to 89.0.4389.72 allowed a remote\n attacker to potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21179)\n\n - Use after free in tab search in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to\n potentially exploit heap corruption via a crafted HTML page. (CVE-2021-21180)\n\n - Side-channel information leakage in autofill in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to obtain potentially sensitive information from process memory via a crafted HTML page.\n (CVE-2021-21181)\n\n - Insufficient policy enforcement in navigations in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker who had compromised the renderer process to bypass navigation restrictions via a crafted HTML\n page. (CVE-2021-21182)\n\n - Inappropriate implementation in performance APIs in Google Chrome prior to 89.0.4389.72 allowed a remote\n attacker to leak cross-origin data via a crafted HTML page. (CVE-2021-21183, CVE-2021-21184)\n\n - Insufficient policy enforcement in extensions in Google Chrome prior to 89.0.4389.72 allowed an attacker\n who convinced a user to install a malicious extension to obtain sensitive information via a crafted Chrome\n Extension. 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(CVE-2021-21189)\n\n - Uninitialized data in PDFium in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain\n potentially sensitive information from process memory via a crafted PDF file. 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Interested in switching release channels? Find out how [here](<https://www.chromium.org/getting-involved/dev-channel>). If you find a new issue, please let us know by [filing a bug](<https://crbug.com/>). The [community help forum](<https://productforums.google.com/forum/#!forum/chrome>) is also a great place to reach out for help or learn about common issues.\n\n\n\n\nSecurity Fixes and Rewards\n\nNote: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven't yet fixed.\n\n\n\n\nThis update includes [1](<https://bugs.chromium.org/p/chromium/issues/list?can=1&q=type%3Abug-security+os%3DAndroid%2Cios%2Clinux%2Cmac%2Cwindows%2Call%2Cchrome+label%3ARelease-2-M88>) security fix. Please see the [Chrome Security Page](<https://sites.google.com/a/chromium.org/dev/Home/chromium-security>) for more information.\n\n\n\n\n[$TBD][[1170176](<https://crbug.com/1170176>)] High CVE-2021-21148: Heap buffer overflow in V8. Reported by Mattias Buelens on 2021-01-24\n\n\n\n\nGoogle is aware of reports that an exploit for CVE-2021-21148 exists in the wild.\n\n\nWe would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel.\n\n\n\n\n\n\n\n\nSrinivas Sista [Google Chrome](<https://www.google.com/chrome/>)", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-04T00:00:00", "type": "chrome", "title": "Stable Channel Update for Desktop", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-04T00:00:00", "id": "GCSA-2763659147289736801", "href": "https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-12-30T22:31:22", "description": "The Stable channel has been updated to 89.0.4389.90 for Windows, Mac and Linux which will roll out over the coming days/weeks.\n\n\nA full list of changes in this build is available in the [log](<https://chromium.googlesource.com/chromium/src/+log/89.0.4389.82..89.0.4389.90?pretty=fuller&n=10000>). Interested in switching release channels? Find out how [here](<https://www.chromium.org/getting-involved/dev-channel>). If you find a new issue, please let us know by [filing a bug](<https://crbug.com/>). The [community help forum](<https://productforums.google.com/forum/#!forum/chrome>) is also a great place to reach out for help or learn about common issues.\n\n\n\n\n**Security Fixes and Rewards**\n\nNote: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven't yet fixed.\n\n\n\n\nThis update includes [5](<https://bugs.chromium.org/p/chromium/issues/list?can=1&q=type%3Abug-security+os%3DAndroid%2Cios%2Clinux%2Cmac%2Cwindows%2Call%2Cchrome+label%3ARelease-2-M89>) security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the [Chrome Security Page](<https://sites.google.com/a/chromium.org/dev/Home/chromium-security>) for more information.\n\n\n\n\n[$500][[1167357](<https://crbug.com/1167357>)] High CVE-2021-21191: Use after free in WebRTC. Reported by raven (@raid_akame) on 2021-01-15\n\n[$TBD][[1181387](<https://crbug.com/1181387>)] High CVE-2021-21192: Heap buffer overflow in tab groups. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on 2021-02-23\n\n[$TBD][[1186287](<https://crbug.com/1186287>)] High CVE-2021-21193: Use after free in Blink. Reported by Anonymous on 2021-03-09\n\n\n\n\nWe would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel.\n\n\n\n\nGoogle is aware of reports that an exploit for CVE-2021-21193 exists in the wild. \n\nAs usual, our ongoing internal security work was responsible for a wide range of fixes:\n\n * [[1187298](<https://crbug.com/1187298>)] Various fixes from internal audits, fuzzing and other initiatives\n\n\n\n\nMany of our security bugs are detected using [AddressSanitizer](<https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer>), [MemorySanitizer](<https://code.google.com/p/memory-sanitizer/wiki/MemorySanitizer>), [UndefinedBehaviorSanitizer](<https://www.chromium.org/developers/testing/undefinedbehaviorsanitizer>), [Control Flow Integrity](<https://sites.google.com/a/chromium.org/dev/developers/testing/control-flow-integrity>), [libFuzzer](<https://sites.google.com/a/chromium.org/dev/developers/testing/libfuzzer>), or [AFL](<https://github.com/google/afl>).\n\n\n\n\nPrudhvikumar Bommana\n\nGoogle Chrome", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-12T00:00:00", "type": "chrome", "title": "Stable Channel Update for Desktop", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-12T00:00:00", "id": "GCSA-5280375550425303743", "href": "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-12-29T20:03:17", "description": "The Chrome team is delighted to announce the promotion of Chrome 89 to the stable channel for Windows, Mac and Linux. This will roll out over the coming days/weeks.\n\n\n\n\n\nChrome 89.0.4389.72 contains a number of fixes and improvements -- a list of changes is available in the[ log](<https://chromium.googlesource.com/chromium/src/+log/88.0.4324.182..89.0.4389.72?pretty=fuller&n=10000>). Watch out for upcoming[ Chrome](<https://chrome.blogspot.com/>) and[ Chromium](<https://blog.chromium.org/>) blog posts about new features and big efforts delivered in 89\n\n\n\n\nSecurity Fixes and Rewards\n\nNote: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven't yet fixed.\n\n\n\n\nThis update includes [47](<https://bugs.chromium.org/p/chromium/issues/list?can=1&q=type%3Abug-security+os%3DAndroid%2Cios%2Clinux%2Cmac%2Cwindows%2Call%2Cchrome+label%3ARelease-0-M89>) security fixes. Below, we highlight fixes that were contributed by external researchers. Please see the [Chrome Security Page](<https://sites.google.com/a/chromium.org/dev/Home/chromium-security>) for more information.\n\n\n\n\n[$10000][[1171049](<https://crbug.com/1171049>)] High CVE-2021-21159: Heap buffer overflow in TabStrip. Reported by Khalil Zhani on 2021-01-27\n\n[$7500][[1170531](<https://crbug.com/1170531>)] High CVE-2021-21160: Heap buffer overflow in WebAudio. Reported by Marcin 'Icewall' Noga of Cisco Talos on 2021-01-25\n\n[$7500][[1173702](<https://crbug.com/1173702>)] High CVE-2021-21161: Heap buffer overflow in TabStrip. Reported by Khalil Zhani on 2021-02-02\n\n[$5000][[1172054](<https://crbug.com/1172054>)] High CVE-2021-21162: Use after free in WebRTC. Reported by Anonymous on 2021-01-29\n\n[$TBD][[1111239](<https://crbug.com/1111239>)] High CVE-2021-21163: Insufficient data validation in Reader Mode. Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2020-07-30\n\n[$TBD][[1164846](<https://crbug.com/1164846>)] High CVE-2021-21164: Insufficient data validation in Chrome for iOS. Reported by Muneaki Nishimura (nishimunea) on 2021-01-11\n\n[$TBD][[1174582](<https://crbug.com/1174582>)] High CVE-2021-21165: Object lifecycle issue in audio. Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2021-02-04\n\n[$TBD][[1177465](<https://crbug.com/1177465>)] High CVE-2021-21166: Object lifecycle issue in audio. Reported by Alison Huffman, Microsoft Browser Vulnerability Research on 2021-02-11\n\n[$10000][[1161144](<https://crbug.com/1161144>)] Medium CVE-2021-21167: Use after free in bookmarks. Reported by Leecraso and Guang Gong of 360 Alpha Lab on 2020-12-22\n\n[$5000][[1152226](<https://crbug.com/1152226>)] Medium CVE-2021-21168: Insufficient policy enforcement in appcache. Reported by Luan Herrera (@lbherrera_) on 2020-11-24\n\n[$5000][[1166138](<https://crbug.com/1166138>)] Medium CVE-2021-21169: Out of bounds memory access in V8. Reported by Bohan Liu (@P4nda20371774) and Moon Liang of Tencent Security Xuanwu Lab on 2021-01-13\n\n[$3000][[1111646](<https://crbug.com/1111646>)] Medium CVE-2021-21170: Incorrect security UI in Loader. Reported by David Erceg on 2020-07-31\n\n[$3000][[1152894](<https://crbug.com/1152894>)] Medium CVE-2021-21171: Incorrect security UI in TabStrip and Navigation. Reported by Irvan Kurniawan (sourc7) on 2020-11-25\n\n[$1000][[1150810](<https://crbug.com/1150810>)] Medium CVE-2021-21172: Insufficient policy enforcement in File System API. Reported by Maciej Pulikowski on 2020-11-19\n\n[$500][[1154250](<https://crbug.com/1154250>)] Medium CVE-2021-21173: Side-channel information leakage in Network Internals. Reported by Tom Van Goethem from imec-DistriNet, KU Leuven on 2020-12-01\n\n[$NA][[1152999](<https://crbug.com/1152999>)] Medium CVE-2021-21174: Inappropriate implementation in Referrer. Reported by Jun Kokatsu (@shhnjk) on 2020-11-26\n\n[$TBD][[1146651](<https://crbug.com/1146651>)] Medium CVE-2021-21175: Inappropriate implementation in Site isolation. Reported by Jun Kokatsu, Microsoft Browser Vulnerability Research on 2020-11-07\n\n[$TBD][[1170584](<https://crbug.com/1170584>)] Medium CVE-2021-21176: Inappropriate implementation in full screen mode. Reported by Luan Herrera (@lbherrera_) on 2021-01-26\n\n[$TBD][[1173879](<https://crbug.com/1173879>)] Medium CVE-2021-21177: Insufficient policy enforcement in Autofill. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on 2021-02-03\n\n[$TBD][[1174186](<https://crbug.com/1174186>)] Medium CVE-2021-21178: Inappropriate implementation in Compositing. Reported by Japong on 2021-02-03\n\n[$TBD][[1174943](<https://crbug.com/1174943>)] Medium CVE-2021-21179: Use after free in Network Internals. Reported by Anonymous on 2021-02-05\n\n[$TBD][[1175507](<https://crbug.com/1175507>)] Medium CVE-2021-21180: Use after free in tab search. Reported by Abdulrahman Alqabandi, Microsoft Browser Vulnerability Research on 2021-02-07\n\n[$TBD][[1177875](<https://crbug.com/1177875>)] Medium CVE-2020-27844: Heap buffer overflow in OpenJPEG. Reported by Sean Campbell at Tableau on 2021-02-12\n\n[$TBD][[1182767](<https://crbug.com/1182767>)] Medium CVE-2021-21181: Side-channel information leakage in autofill. Reported by Xu Lin (University of Illinois at Chicago), Panagiotis Ilia (University of Illinois at Chicago), Jason Polakis (University of Illinois at Chicago) on 2021-02-26\n\n[$1000][[1049265](<https://crbug.com/1049265>)] Low CVE-2021-21182: Insufficient policy enforcement in navigations. Reported by Luan Herrera (@lbherrera_) on 2020-02-05\n\n[$1000][[1105875](<https://crbug.com/1105875>)] Low CVE-2021-21183: Inappropriate implementation in performance APIs. Reported by Takashi Yoneuchi (@y0n3uchy) on 2020-07-15\n\n[$1000][[1131929](<https://crbug.com/1131929>)] Low CVE-2021-21184: Inappropriate implementation in performance APIs. Reported by James Hartig on 2020-09-24\n\n[$TBD][[1100748](<https://crbug.com/1100748>)] Low CVE-2021-21185: Insufficient policy enforcement in extensions. Reported by David Erceg on 2020-06-30\n\n[$TBD][[1153445](<https://crbug.com/1153445>)] Low CVE-2021-21186: Insufficient policy enforcement in QR scanning. Reported by dhirajkumarnifty on 2020-11-28\n\n[$TBD][[1155516](<https://crbug.com/1155516>)] Low CVE-2021-21187: Insufficient data validation in URL formatting. Reported by Kirtikumar Anandrao Ramchandani on 2020-12-04\n\n[$N/A][[1161739](<https://crbug.com/1161739>)] Low CVE-2021-21188: Use after free in Blink. Reported by Woojin Oh(@pwn_expoit) of STEALIEN on 2020-12-24\n\n[$TBD][[1165392](<https://crbug.com/1165392>)] Low CVE-2021-21189: Insufficient policy enforcement in payments. Reported by Khalil Zhani on 2021-01-11\n\n[$TBD][[1166091](<https://crbug.com/1166091>)] Low CVE-2021-21190: Uninitialized Use in PDFium. Reported by Zhou Aiting(@zhouat1) of Qihoo 360 Vulcan Team on 2021-01-13\n\n[$NA][[1164816](<https://crbug.com/1164816>)] Low CVE-2021-21200: Inappropriate implementation in Settings. Reported by Lucas Pinheiro, Microsoft Browser Vulnerability Research on 2021-01-11\n\n\n\n\nWe would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel. \n\n\n\nGoogle is aware of reports that an exploit for CVE-2021-21166 exists in the wild. \n\n\nAs usual, our ongoing internal security work was responsible for a wide range of fixes:\n\n * [[1183883](<https://crbug.com/1183883>)] Various fixes from internal audits, fuzzing and other initiatives\n\n\nMany of our security bugs are detected using [AddressSanitizer](<https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer>), [MemorySanitizer](<https://code.google.com/p/memory-sanitizer/wiki/MemorySanitizer>), [UndefinedBehaviorSanitizer](<https://www.chromium.org/developers/testing/undefinedbehaviorsanitizer>), [Control Flow Integrity](<https://sites.google.com/a/chromium.org/dev/developers/testing/control-flow-integrity>), [libFuzzer](<https://sites.google.com/a/chromium.org/dev/developers/testing/libfuzzer>), or [AFL](<https://github.com/google/afl>).\n\n\n\n\n\n\n\nPrudhvikumar Bommana\n\nGoogle Chrome", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-02T00:00:00", "type": "chrome", "title": "Stable Channel Update for Desktop", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 8.5, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190", "CVE-2021-21200"], "modified": "2021-03-02T00:00:00", "id": "GCSA-3803715665928870837", "href": "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}], "kaspersky": [{"lastseen": "2021-08-18T10:58:34", "description": "### *Detect date*:\n02/05/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nA heap buffer overflow vulnerability was found in Microsoft Browser. Malicious users can exploit this vulnerability to cause denial of service.\n\n### *Affected products*:\nMicrosoft Edge (Chromium-based)\n\n### *Solution*:\nInstall necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)\n\n### *Original advisories*:\n[CVE-2021-21148](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21148>) \n\n\n### *Impacts*:\nDoS \n\n### *Related products*:\n[Microsoft Edge](<https://threats.kaspersky.com/en/product/Microsoft-Edge/>)\n\n### *CVE-IDS*:\n[CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21148>)6.8High\n\n### *Microsoft official advisories*:", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-05T00:00:00", "type": "kaspersky", "title": "KLA12063 DoS vulnerability in Microsoft Browser", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-16T00:00:00", "id": "KLA12063", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12063/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:58:35", "description": "### *Detect date*:\n02/04/2021\n\n### *Severity*:\nHigh\n\n### *Description*:\nA heap buffer overflow vulnerability was found in Google Chrome. Malicious users can exploit this vulnerability to cause denial of service.\n\n### *Affected products*:\nGoogle Chrome earlier than 88.0.4324.150\n\n### *Solution*:\nUpdate to the latest version \n[Download Google Chrome](<https://www.google.com/chrome/>)\n\n### *Original advisories*:\n[Stable Channel Update for Desktop](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>) \n\n\n### *Impacts*:\nDoS \n\n### *Related products*:\n[Google Chrome](<https://threats.kaspersky.com/en/product/Google-Chrome/>)\n\n### *CVE-IDS*:\n[CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21148>)6.8High", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-04T00:00:00", "type": "kaspersky", "title": "KLA12062 DoS vulnerability in Google Chrome", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-05-12T00:00:00", "id": "KLA12062", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12062/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:56:21", "description": "### *Detect date*:\n02/09/2021\n\n### *Severity*:\nHigh\n\n### *Description*:\nA heap buffer overflow vulnerability was found in Opera. Malicious users can exploit this vulnerability to cause denial of service.\n\n### *Affected products*:\nOpera earlier than 74.0.3911.107\n\n### *Solution*:\nUpdate to the latest version \n[Download Opera](<https://www.opera.com>)\n\n### *Original advisories*:\n[Changelog for Opera 74](<https://blogs.opera.com/desktop/changelog-for-74/#b3911.107>) \n[Stable Channel Update for Desktop](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>) \n\n\n### *Impacts*:\nDoS \n\n### *Related products*:\n[Opera](<https://threats.kaspersky.com/en/product/Opera/>)\n\n### *CVE-IDS*:\n[CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21148>)6.8High", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-09T00:00:00", "type": "kaspersky", "title": "KLA12179 DoS vulnerability in Opera", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-05-27T00:00:00", "id": "KLA12179", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12179/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:57:25", "description": "### *Detect date*:\n03/15/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to cause denial of service, execute arbitrary code.\n\n### *Affected products*:\nMicrosoft Edge (Chromium-based)\n\n### *Solution*:\nInstall necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)\n\n### *Original advisories*:\n[CVE-2021-21192](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21192>) \n[CVE-2021-21191](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21191>) \n[CVE-2021-21193](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21193>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Edge](<https://threats.kaspersky.com/en/product/Microsoft-Edge/>)\n\n### *CVE-IDS*:\n[CVE-2021-21193](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193>)6.8High \n[CVE-2021-21191](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21191>)6.8High \n[CVE-2021-21192](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21192>)6.8High\n\n### *Microsoft official advisories*:", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-15T00:00:00", "type": "kaspersky", "title": "KLA12122 Multiple vulnerabilities in Microsoft Browser", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-16T00:00:00", "id": "KLA12122", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12122/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:57:33", "description": "### *Detect date*:\n03/12/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nMultiple vulnerabilities were found in Google Chrome. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service.\n\n### *Affected products*:\nGoogle Chrome earlier than 89.0.4389.90\n\n### *Solution*:\nUpdate to the latest version \n[Download Google Chrome](<https://www.google.com/chrome/>)\n\n### *Original advisories*:\n[Stable Channel Update for Desktop](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Google Chrome](<https://threats.kaspersky.com/en/product/Google-Chrome/>)\n\n### *CVE-IDS*:\n[CVE-2021-21193](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193>)6.8High \n[CVE-2021-21191](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21191>)6.8High \n[CVE-2021-21192](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21192>)6.8High", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-12T00:00:00", "type": "kaspersky", "title": "KLA12115 Multiple vulnerabilities in Google Chrome", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-16T00:00:00", "id": "KLA12115", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12115/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:56:19", "description": "### *Detect date*:\n04/01/2021\n\n### *Severity*:\nHigh\n\n### *Description*:\nMultiple vulnerabilities were found in Opera. Malicious users can exploit these vulnerabilities to execute arbitrary code, cause denial of service.\n\n### *Affected products*:\nOpera earlier than 75.0.3969.141\n\n### *Solution*:\nUpdate to the latest version \n[Download Opera](<https://www.opera.com>)\n\n### *Original advisories*:\n[Changelog for Opera 75](<https://blogs.opera.com/desktop/changelog-for-75/#b3969.141>) \n[Stable Channel Update for Desktop](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Opera](<https://threats.kaspersky.com/en/product/Opera/>)\n\n### *CVE-IDS*:\n[CVE-2021-21193](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21193>)6.8High \n[CVE-2021-21191](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21191>)6.8High \n[CVE-2021-21192](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21192>)6.8High", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-01T00:00:00", "type": "kaspersky", "title": "KLA12181 Multiple vulnerabilities in Opera", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-05-27T00:00:00", "id": "KLA12181", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12181/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-08-18T10:57:43", "description": "### *Detect date*:\n03/04/2021\n\n### *Severity*:\nWarning\n\n### *Description*:\nMultiple vulnerabilities were found in Microsoft Browser. Malicious users can exploit these vulnerabilities to obtain sensitive information, cause denial of service, bypass security restrictions, spoof user interface, execute arbitrary code.\n\n### *Affected products*:\nMicrosoft Edge (Chromium-based)\n\n### *Solution*:\nInstall necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)\n\n### *Original advisories*:\n[CVE-2021-21190](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21190>) \n[CVE-2021-21184](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21184>) \n[CVE-2021-21189](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21189>) \n[CVE-2021-21159](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21159>) \n[CVE-2021-21174](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21174>) \n[CVE-2021-21175](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21175>) \n[CVE-2021-21169](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21169>) \n[CVE-2021-21163](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21163>) \n[CVE-2021-21178](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21178>) \n[CVE-2021-21166](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21166>) \n[CVE-2021-21171](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21171>) \n[CVE-2021-21164](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21164>) \n[CVE-2020-27844](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2020-27844>) \n[CVE-2021-21160](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21160>) \n[CVE-2021-21188](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21188>) \n[CVE-2021-21173](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21173>) \n[CVE-2021-21182](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21182>) \n[CVE-2021-21165](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21165>) \n[CVE-2021-21183](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21183>) \n[CVE-2021-21161](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21161>) \n[CVE-2021-21167](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21167>) \n[CVE-2021-21177](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21177>) \n[CVE-2021-21176](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21176>) \n[CVE-2021-21180](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21180>) \n[CVE-2021-21170](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21170>) \n[CVE-2021-21172](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21172>) \n[CVE-2021-21179](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21179>) \n[CVE-2021-21181](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21181>) \n[CVE-2021-21186](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21186>) \n[CVE-2021-21162](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21162>) \n[CVE-2021-21185](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21185>) \n[CVE-2021-21187](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21187>) \n[CVE-2021-21168](<https://portal.msrc.microsoft.com/api/security-guidance/en-US/CVE/CVE-2021-21168>) \n\n\n### *Impacts*:\nACE \n\n### *Related products*:\n[Microsoft Edge](<https://threats.kaspersky.com/en/product/Microsoft-Edge/>)\n\n### *CVE-IDS*:\n[CVE-2020-27844](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27844>)8.3Critical \n[CVE-2021-21159](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21159>)6.8High \n[CVE-2021-21160](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21160>)6.8High \n[CVE-2021-21161](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21161>)6.8High \n[CVE-2021-21162](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21162>)6.8High \n[CVE-2021-21163](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21163>)4.3Warning \n[CVE-2021-21164](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21164>)4.3Warning \n[CVE-2021-21165](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21165>)6.8High \n[CVE-2021-21166](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21166>)6.8High \n[CVE-2021-21167](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21167>)6.8High \n[CVE-2021-21168](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21168>)4.3Warning \n[CVE-2021-21169](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21169>)6.8High \n[CVE-2021-21170](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21170>)4.3Warning \n[CVE-2021-21171](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21171>)4.3Warning \n[CVE-2021-21172](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21172>)5.8High \n[CVE-2021-21173](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21173>)4.3Warning \n[CVE-2021-21174](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21174>)6.8High \n[CVE-2021-21175](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21175>)4.3Warning \n[CVE-2021-21176](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21176>)4.3Warning \n[CVE-2021-21177](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21177>)4.3Warning \n[CVE-2021-21178](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21178>)4.3Warning \n[CVE-2021-21179](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21179>)6.8High \n[CVE-2021-21180](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21180>)6.8High \n[CVE-2021-21181](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21181>)4.3Warning \n[CVE-2021-21182](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21182>)4.3Warning \n[CVE-2021-21183](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21183>)4.3Warning \n[CVE-2021-21184](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21184>)4.3Warning \n[CVE-2021-21185](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21185>)4.3Warning \n[CVE-2021-21186](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21186>)4.3Warning \n[CVE-2021-21187](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21187>)4.3Warning \n[CVE-2021-21188](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21188>)6.8High \n[CVE-2021-21189](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21189>)4.3Warning \n[CVE-2021-21190](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21190>)6.8High", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-04T00:00:00", "type": "kaspersky", "title": "KLA12107 Multiple vulnerabilities in Microsoft Browser", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 8.5, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-03-10T00:00:00", "id": "KLA12107", "href": "https://threats.kaspersky.com/en/vulnerability/KLA12107/", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}], "malwarebytes": [{"lastseen": "2021-02-12T13:10:41", "description": "A Chrome patch has been issued with an advisory stating that the Stable channel has been updated to 88.0.4324.150 for Windows, Mac and Linux. The only noteworthy thing about this update is a patch for a zero-day vulnerability that has been actively exploited in the wild. But that one looks to be extremely important.\n\n### Which zero-day got patched?\n\nPublicly disclosed computer security flaws are listed in the Common Vulnerabilities and Exposures (CVE) database. Its goal is to make it easier to share data across separate vulnerability capabilities (tools, databases, and services). This zero-day got listed as [CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-21148>). From the [update announcement](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>) for this Chrome patch we can learn that the patch counters a heap buffer overflow in the V8 JavaScript engine, reported by Mattias Buelens on January 24, 2021.\n\n### What is a heap buffer overflow?\n\nHeap is the name for a region of a process\u2019 memory which is used to store dynamic variables. A buffer overflow is a type of software vulnerability that exists when an area of memory within a software application reaches its address boundary and writes into an adjacent memory region. In software exploit code, two common areas that are targeted for overflows are the stack and the heap.\n\nSo, by creating a specially crafted input, attackers could use this vulnerability to write code into a memory location where they normally wouldn\u2019t have access. Having this attack vector available as a zero-day in a popular browser is a golden opportunity for a watering hole.\n\nWatering holes are used as a targeted attack strategy. The attackers infect a website where they know their intended victim(s) will visit, or lure them to a site of their own making. Depending on the nature of the infection, the attackers can single out their intended target(s) or just infect anyone that visits the site unprotected. The watering hole strategy is a mix of social engineering, hacking, and drive-by infections that requires a high level of knowledge and a well-thought-out strategy.\n\n### How was this vulnerability used in the wild?\n\nBased on the timing of the discovery (January 24) and [this report](<https://blog.google/threat-analysis-group/new-campaign-targeting-security-researchers/>) by Google\u2019s Threat Analysis Group (TAG) issued on January 26, the general assumption is that the attack was used against security researchers working on vulnerability research and development at different companies and organizations. To connect and gain trust among security researchers, the actors created a research blog and multiple Twitter profiles to interact with potential targets.\n\nOne of the methods the attackers used was to interact with the researchers and get them to follow a link on Twitter to a write-up hosted on a malicious website. Shortly after the visit, a malicious service was installed on the researcher\u2019s system and an in-memory backdoor would begin to communicate with a [command and control (C&C)](<https://blog.malwarebytes.com/glossary/cc/>) server. This sure sounds like something that could be accomplished using a heap buffer overflow in a browser.\n\n### The update\n\nDespite its discovery, this exploit remains useful to cybercriminals. We advise everyone to update and get the latest version of Chrome as soon as possible. \n\nThe easiest way to do it is to allow Chrome to update automatically, which basically uses the same method as outlined below but does not require your attention. But you can end up lagging behind if you never close the browser or if something goes wrong, such as an extension stopping you from updating the browser. \n\nSo, it doesn\u2019t hurt to check now and then. And now would be a good time, given the zero-day vulnerability. My preferred method is to have Chrome open the page [chrome://settings/help](<https://settings/help>) which you can also find by clicking **Settings > About Chrome**.\n\nIf there is an update available, Chrome will notify you and start downloading it. Then it will tell you all you have to do to complete the update is **Relaunch **the browser.\n\n![](https://blog.malwarebytes.com/wp-content/uploads/2021/02/updated_Chrome-600x243.png)_After the update your version should be at 88.0.4324.150 or later_\n\nStay safe, everyone!\n\nThe post [Update now! Chrome patches zero-day that was exploited in the wild](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/02/update-now-chrome-patches-zero-day-that-was-exploited-in-the-wild/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "edition": 2, "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-05T12:14:04", "type": "malwarebytes", "title": "Update now! Chrome patches zero-day that was exploited in the wild", "bulletinFamily": "blog", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-05T12:14:04", "id": "MALWAREBYTES:AC714CB24C401F36B220E29C6D2B049F", "href": "https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/02/update-now-chrome-patches-zero-day-that-was-exploited-in-the-wild/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-09-14T18:35:22", "description": "Google _[announced](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html>)_ on Monday that it will be issuing patches for 11 high severity vulnerabilities found in Chrome, including two that are currently being exploited in the wild. The patch, which is part of the Stable Channel Update for Chrome 93 (93.0.4577.82), will be released for Windows, Mac, and Linux (if it hasn\u2019t already). Chrome users are expected to see the roll out in the coming days and weeks.\n\nReaders should note that other popular browsers such as Brave and Edge are also Chromium-based and therefore likely to be vulnerable to these flaws too. Keep an eye out for updates.\n\nYou can check what version of Chrome you are running by opening About Google Chrome from the main menu.\n\n![](https://blog.malwarebytes.com/wp-content/uploads/2021/09/latest-chrome-stable-600x458.png)The About Google Chrome screen tells you what version you are running and whether it is up to date\n\n### The vulnerabilities\n\nThe fixes address high severity vulnerabilities reported to Google by independent researchers from as early as August of this year. That said, the company has included names of the researchers who found the flaws in their announcement.\n\nThe two vulnerabilities that are being actively exploited\u2014namely, [CVE-2021-30632](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30632>) and [CVE-2021-30633](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30633>)\u2014were submitted anonymously. The former is an "Out of bounds write" flaw in the V8 JavaScript engine and the latter is a "Use after free" bug in the Indexed DB API.\n\nBecause threat actors are currently exploiting the two aforementioned vulnerabilities, Google provides little to no information on how the attacks against these weaknesses are being carried out, or other precautionary measures users should be looking out for. Per Google:\n\n> Note: Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven\u2019t yet fixed.\n\n### V8, the thorn in Chrome's side?\n\nNobody will be surprised to see that one of the in-the-wild exploits affects Chrome's V8 engine. \n\nAt the heart of every modern web browser sits a JavaScript interpreter, a component that does much of the heavy lifting for interactive web apps. In Chrome, that interpreter is V8. These components need to accommodate frequent updates and adhere to a bewildering array of web standards, while also being both fast and secure.\n\nChrome's [V8](<https://v8.dev/>) JavaScript engine has been a significant source of security problems. So significant in fact, that in August Microsoft\u2014whose Edge browser is based on Chrome\u2014announced an experimental project called [Super Duper Secure Mode](<https://blog.malwarebytes.com/reports/2021/08/edges-super-duper-secure-mode-benchmarked-how-much-speed-would-you-trade-for-security/>) that aims to tackle the rash of V8 problems by simply turning an important part of it off.\n\nA little under half of the CVEs issued for V8 relate to its Just-in-Time (JIT) compiler, and more than half of all \u2018in-the-wild\u2019 Chrome exploits abuse JIT bugs. Just-in-time compilation is an important performance feature and turning it off is a direct trade of speed for security. How much? According our quick-and-dirty testing, turning off the JIT compiler makes JavaScript execution twice as slow in Edge.\n\n### 11 zero-days and counting\n\nTo date, the Google Chrome team has patched 11 zero-day vulnerabilities in 2021. Previous patches are from the following vulnerabilities, some of which we have covered here in the Malwarebytes Labs blog:\n\n * [_CVE-2021-21148_](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/02/update-now-chrome-patches-zero-day-that-was-exploited-in-the-wild/>)\n * [_CVE-2021-21166_](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/03/update-now-chrome-fix-patches-in-the-wild-zero-day/>)\n * CVE-2021-21193\n * [_CVE-2021-21206_](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/update-now-chrome-needs-patching-against-two-in-the-wild-exploits/>)\n * [_CVE-2021-21220_](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/update-now-chrome-needs-patching-against-two-in-the-wild-exploits/>)\n * CVE-2021-21224\n * CVE-2021-30551\n * CVE-2021-30554\n * CVE-2021-30563\n\nWith so much bad PR, you might expect Chrome's market share to suffer; yet, it remains by far the most popular browser. Users\u2014and the Google Chrome brand\u2014seem unaffected.\n\nMake sure you update your Chrome or Chromium-based browser once you see the patch available, or better still, make sure your browser is set to [update itself](<https://support.google.com/chrome/answer/95414?hl=en-GB&co=GENIE.Platform%3DDesktop#:~:text=Go%20to%20'About%20Google%20Chrome,Chrome%20to%20apply%20the%20update.>).\n\nStay safe!\n\nThe post [Update now! Google Chrome fixes two in-the-wild zero-days](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/09/patch-now-google-chrome-fixes-two-in-the-wild-zero-days/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-09-14T16:28:47", "type": "malwarebytes", "title": "Update now! Google Chrome fixes two in-the-wild zero-days", "bulletinFamily": "blog", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633"], "modified": "2021-09-14T16:28:47", "id": "MALWAREBYTES:390E663F11CA04293C83488A40CB3A8A", "href": "https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/09/patch-now-google-chrome-fixes-two-in-the-wild-zero-days/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-03-04T14:27:39", "description": "The Microsoft Browser Vulnerability Research team has found and reported a vulnerability in the audio component of Google Chrome. Google has fixed this high-severity vulnerability ([CVE-2021-21166](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21166>)) in its Chrome browser and is warning Chrome users that an exploit exists in the wild for the vulnerability. It is [not the first time](<https://www.tenable.com/blog/cve-2019-13720-use-after-free-zero-day-in-google-chrome-exploited-in-the-wild>) that Chrome's audio component was targeted by an exploit.\n\n### No details available\n\nFurther details about the vulnerability are restricted until a majority of Chrome users have updated to the patched version of the software. What we do know is that it concerns an object lifecycle issue in the audio component of the browser.\n\nAn object lifecycle is used in object oriented programming to describe the time between an object's creation and its destruction. Outside of the lifecycle the object is no longer valid, which could lead to a vulnerability.\n\nFor example, if everything goes as planned with the lifecycle the correct amount of computer memory is allocated and reclaimed at the right times. If it doesn't go well, and memory is mismanaged, that could lead to a flaw \u2013 or vulnerability - in the program.\n\n### More vulnerabilities patched in the update\n\nAs per usual Google patched several other vulnerabilities and bugs in the same update. Some of the other vulnerabilities were listed with high severity:\n\nGoogle said that it fixed three heap-buffer overflow flaws in the TabStrip ([CVE-2021-21159](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21159>), [CVE-2021-21161](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21161>)) and WebAudio ([CVE-2021-21160](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21160>)) components. A high-severity use-after-free error ([CVE-2021-21162](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21162>)) was found in WebRTC. Two other high-severity flaws include an insufficient data validation issue in Reader Mode ([CVE-2021-21163](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21163>)) and an insufficient data validation issue in Chrome for iOS ([CVE-2021-21164](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-21164>)).\n\n### The CVE\u2019s\n\nPublicly disclosed computer security flaws are listed in the Common Vulnerabilities and Exposures (CVE) database. Its goal is to make it easier to share data across separate vulnerability capabilities (tools, databases, and services).\n\n * CVE-2021-21159, CVE-2021-21161: Heap buffer overflow in TabStrip. Heap is the name for a region of a process\u2019 memory which is used to store dynamic variables. A buffer overflow is a type of software vulnerability that exists when an area of memory within a software application reaches its address boundary and writes into an adjacent memory region. In software exploit code, two common areas that are targeted for overflows are the stack and the heap.\n * CVE-2021-21160: Heap buffer overflow in WebAudio.\n * CVE-2021-21162: Use after free in WebRTC. Use after free (UAF) is a vulnerability due to incorrect use of dynamic memory during a program\u2019s operation. If after freeing a memory location, a program does not clear the pointer to that memory, an attacker can use the error to manipulate the program. WebRTC allows programmers to add real-time communication capabilities to their application.\n * CVE-2021-21163: Insufficient data validation in Reader Mode. Insufficient data validation could allow an attacker to use especially crafted input to manipulate a program.\n * CVE-2021-21164: Insufficient data validation in Chrome for iOS.\n\nWhen more details about the vulnerabilities come to light it's possible that more exploits for them will be found in the wild. It depends a lot on how easy they are to abuse, and how big the possible impact can be. But with one already being used in the wild, it is advisable to update now. \n\n### How to update\n\nThe easiest way to do it is to allow Chrome to update automatically, which basically uses the same method I outlined below but does not require your attention. But you can end up lagging behind if you never close the browser or if something goes wrong, such as an extension stopping you from updating the browser.\n\nSo, it doesn\u2019t hurt to check now and then. And now would be a good time.\n\nMy preferred method is to have Chrome open the page **chrome://settings/help** which you can also find by clicking **Settings > About Chrome**.\n\nIf there is an update available, Chrome will notify you and start downloading it. Then it will tell you all you have to do to complete the update is **Relaunch** the browser.\n\n![Chrome up-to-date](https://blog.malwarebytes.com/wp-content/uploads/2021/03/Uptodate-600x247.png)_After the update your version should be at 89.0.4.4389.72 or later_\n\nStay safe, everyone!\n\nThe post [Update now! Chrome fix patches in-the-wild zero-day](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/03/update-now-chrome-fix-patches-in-the-wild-zero-day/>) appeared first on [Malwarebytes Labs](<https://blog.malwarebytes.com>).", "edition": 2, "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-04T13:24:38", "type": "malwarebytes", "title": "Update now! Chrome fix patches in-the-wild zero-day", "bulletinFamily": "blog", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-13720", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21166"], "modified": "2021-03-04T13:24:38", "id": "MALWAREBYTES:07CCE98B638067D2F0F9AD53E87E8D55", "href": "https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/03/update-now-chrome-fix-patches-in-the-wild-zero-day/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "suse": [{"lastseen": "2022-11-06T12:09:24", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for opera fixes the following issues:\n\n - Update to version 74.0.3911.107\n - CHR-8311 Update chromium on desktop-stable-88-3911 to 88.0.4324.150\n - DNA-90329 Implement client_capabilities negotiation for Flow / Sync\n - DNA-90560 [Search Tabs] Open Tabs On Top\n - DNA-90620 Add opauto tests for tab snoozing\n - DNA-90628 Update opauto tests after design changes\n - DNA-90818 Only 3 recently closed tabs are shown in a search mode\n - DNA-90911 Enable search-tabs-open-tabs-on-top on developer\n - DNA-90990 Crash at opera::AddressBarView::NotifyBoundsChanged()\n - DNA-90991 Opera doesn\ufffd\ufffd\ufffdt show version and \ufffd\ufffd\ufffdRelaunch\ufffd\ufffd\ufffd button\n despite update is ready\n - DNA-91097 Crash at extensions::BrowserSidebarPrivateGetPremium\n ExtensionsInfoFunction::Run()\n - DNA-91163 [Win] \ufffd\ufffd\ufffdURL navigation filters\ufffd\ufffd\ufffd subpage doesn\ufffd\ufffd\ufffdt react\n on actions\n - DNA-91196 [Flow] Device capabilities is not properly saved in Local\n State\n - DNA-91276 Sidebar setup wont open\n - The update to chromium 88.0.4324.150 fixes following issues:\n - CVE-2021-21148 (1181827)\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:NonFree:\n\n zypper in -t patch openSUSE-2021-296=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-02-15T00:00:00", "type": "suse", "title": "Security update for opera (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-15T00:00:00", "id": "OPENSUSE-SU-2021:0296-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/J3D452OYQTKXJQRO2OWRU5IM6SC2Y3TK/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-06T12:09:24", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n Update to 88.0.4324.150 boo#1181827\n\n - CVE-2021-21148: Heap buffer overflow in V8\n\n This update was imported from the openSUSE:Leap:15.2:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Backports SLE-15-SP2:\n\n zypper in -t patch openSUSE-2021-276=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-02-11T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-11T00:00:00", "id": "OPENSUSE-SU-2021:0276-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/WRRV235H6DBC62DZZGTBUASQEOYUJUOQ/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-09T21:01:14", "description": "An update that fixes one vulnerability is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n Update to 88.0.4324.150 boo#1181827\n\n - CVE-2021-21148: Heap buffer overflow in V8\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-267=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-02-09T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-09T00:00:00", "id": "OPENSUSE-SU-2021:0267-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/BZEZQO2PMEYX4NTXGJYF3SK3LVAZ4AS2/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-08T06:10:38", "description": "An update that fixes three vulnerabilities is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n - Chromium was updated to 89.0.4389.90 (boo#1183515)\n - CVE-2021-21191: Use after free in WebRTC.\n - CVE-2021-21192: Heap buffer overflow in tab groups.\n - CVE-2021-21193: Use after free in Blink.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-436=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-17T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-17T00:00:00", "id": "OPENSUSE-SU-2021:0436-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KJEA6IOQ2CJDQ5EOOYOTAMEHN6772YOW/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-04-18T12:40:33", "description": "An update that fixes three vulnerabilities is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n - Chromium was updated to 89.0.4389.90 (boo#1183515)\n - CVE-2021-21191: Use after free in WebRTC.\n - CVE-2021-21192: Heap buffer overflow in tab groups.\n - CVE-2021-21193: Use after free in Blink.\n\n This update was imported from the openSUSE:Leap:15.2:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Backports SLE-15-SP2:\n\n zypper in -t patch openSUSE-2021-446=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-19T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-19T00:00:00", "id": "OPENSUSE-SU-2021:0446-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YWKF4CBSQUAW5TXSAKSJ2IWL4TE2FP6H/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-04-18T12:40:30", "description": "An update that fixes 9 vulnerabilities is now available.\n\nDescription:\n\n This update for opera fixes the following issues:\n\n - Opera was updated to version 75.0.3969.171 (boo#1184256) CVE-2021-21194,\n CVE-2021-21195, CVE-2021-21196, CVE-2021-21197, CVE-2021-21198,\n CVE-2021-21199, CVE-2021-21191, CVE-2021-21192, CVE-2021-21193\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:NonFree:\n\n zypper in -t patch openSUSE-2021-592=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-04-22T00:00:00", "type": "suse", "title": "Security update for opera (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193", "CVE-2021-21194", "CVE-2021-21195", "CVE-2021-21196", "CVE-2021-21197", "CVE-2021-21198", "CVE-2021-21199"], "modified": "2021-04-22T00:00:00", "id": "OPENSUSE-SU-2021:0592-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/7RDJ7VXQ4XSRZDWGET7L5VU52AB3SLWM/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-10T08:10:29", "description": "An update that fixes 10 vulnerabilities is now available.\n\nDescription:\n\n This update for opera fixes the following issues:\n\n - Update to version 74.0.3911.203\n - CHR-8324 Update chromium on desktop-stable-88-3911 to\n 88.0.4324.182(boo#1182358)\n - DNA-90762 Replace \ufffd\ufffd\ufffdDon\ufffd\ufffd\ufffdt show again\ufffd\ufffd\ufffd with \ufffd\ufffd\ufffdDiscard\ufffd\ufffd\ufffd\n - DNA-90974 Crash at\n opera::PersistentRecentlyClosedWindows::GetEntryType(SessionID)\n - DNA-91289 [Search tabs] Wrong tab stays highlighted after removing\n another tab\n - DNA-91476 Invalid memory dereference PlayerServiceBrowsertest\n - DNA-91502 Change system name on opera://about page for MacOS\n - DNA-91740 Missing title in Extensions Toolbar Menu\n - The update to chromium 88.0.4324.182 fixes following issues:\n CVE-2021-21149, CVE-2021-21150, CVE-2021-21151, CVE-2021-21152,\n CVE-2021-21153, CVE-2021-21154, CVE-2021-21155, CVE-2021-21156,\n CVE-2021-21157\n - Update to version 74.0.3911.160\n - DNA-90409 Cleanup Javascript dialogs: app modal & tab modal\n - DNA-90720 [Search Tabs] Allow discarding recently closed items\n - DNA-90802 [Windows] Debug fails on linking\n - DNA-91130 heap-use-after-free in\n CashbackBackendServiceTest.AutoUpdateSchedule\n - DNA-91152 Allow reading agent variables in trigger conditions\n - DNA-91225 [Search tabs] The webpage doesn\ufffd\ufffd\ufffdt move from \ufffd\ufffd\ufffdOpen\n tabs\ufffd\ufffd\ufffd to \ufffd\ufffd\ufffdRecently closed\ufffd\ufffd\ufffd section\n - DNA-91243 Add Rich Hint support for the cashback badge and popup\n - DNA-91483 component_unittests are timing out\n - DNA-91516 Sidebar setup opens only with cashback enabled\n - DNA-91601 No text in 1st line of address bar dropdown suggestions\n - DNA-91603 Jumbo build problem on desktop-stable-88-3911\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:NonFree:\n\n zypper in -t patch openSUSE-2021-413=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-03-16T00:00:00", "type": "suse", "title": "Security update for opera (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157"], "modified": "2021-03-16T00:00:00", "id": "OPENSUSE-SU-2021:0413-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NFEMB66XHIEXP6VOOQ4JIXBD6U5X4EIA/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-10T04:09:11", "description": "An update that fixes 29 vulnerabilities is now available.\n\nDescription:\n\n This update for libqt5-qtwebengine fixes the following issues:\n\n Update to version 5.15.3\n\n CVE fixes backported in chromium updates:\n\n - CVE-2020-16044: Use after free in WebRTC\n - CVE-2021-21118: Heap buffer overflow in Blink\n - CVE-2021-21119: Use after free in Media\n - CVE-2021-21120: Use after free in WebSQL\n - CVE-2021-21121: Use after free in Omnibox\n - CVE-2021-21122: Use after free in Blink\n - CVE-2021-21123: Insufficient data validation in File System API\n - CVE-2021-21125: Insufficient policy enforcement in File System API\n - CVE-2021-21126: Insufficient policy enforcement in extensions\n - CVE-2021-21127: Insufficient policy enforcement in extensions\n - CVE-2021-21128: Heap buffer overflow in Blink\n - CVE-2021-21129: Insufficient policy enforcement in File System API\n - CVE-2021-21130: Insufficient policy enforcement in File System API\n - CVE-2021-21131: Insufficient policy enforcement in File System API\n - CVE-2021-21132: Inappropriate implementation in DevTools\n - CVE-2021-21135: Inappropriate implementation in Performance API\n - CVE-2021-21137: Inappropriate implementation in DevTools\n - CVE-2021-21140: Uninitialized Use in USB\n - CVE-2021-21141: Insufficient policy enforcement in File System API\n - CVE-2021-21145: Use after free in Fonts\n - CVE-2021-21146: Use after free in Navigation\n - CVE-2021-21147: Inappropriate implementation in Skia\n - CVE-2021-21148: Heap buffer overflow in V8\n - CVE-2021-21149: Stack overflow in Data Transfer\n - CVE-2021-21150: Use after free in Downloads\n - CVE-2021-21152: Heap buffer overflow in Media\n - CVE-2021-21153: Stack overflow in GPU Process\n - CVE-2021-21156: Heap buffer overflow in V8\n - CVE-2021-21157: Use after free in Web Sockets\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-973=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-07-06T00:00:00", "type": "suse", "title": "Security update for libqt5-qtwebengine (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-16044", "CVE-2021-21118", "CVE-2021-21119", "CVE-2021-21120", "CVE-2021-21121", "CVE-2021-21122", "CVE-2021-21123", "CVE-2021-21125", "CVE-2021-21126", "CVE-2021-21127", "CVE-2021-21128", "CVE-2021-21129", "CVE-2021-21130", "CVE-2021-21131", "CVE-2021-21132", "CVE-2021-21135", "CVE-2021-21137", "CVE-2021-21140", "CVE-2021-21141", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21156", "CVE-2021-21157"], "modified": "2021-07-06T00:00:00", "id": "OPENSUSE-SU-2021:0973-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/5TAIJROLXEDDASYPE5FNK2OGKN4IAJT5/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-06T17:58:39", "description": "An update that fixes 29 vulnerabilities is now available.\n\nDescription:\n\n This update for libqt5-qtwebengine fixes the following issues:\n\n Update to version 5.15.3\n\n CVE fixes backported in chromium updates:\n\n - CVE-2020-16044: Use after free in WebRTC\n - CVE-2021-21118: Heap buffer overflow in Blink\n - CVE-2021-21119: Use after free in Media\n - CVE-2021-21120: Use after free in WebSQL\n - CVE-2021-21121: Use after free in Omnibox\n - CVE-2021-21122: Use after free in Blink\n - CVE-2021-21123: Insufficient data validation in File System API\n - CVE-2021-21125: Insufficient policy enforcement in File System API\n - CVE-2021-21126: Insufficient policy enforcement in extensions\n - CVE-2021-21127: Insufficient policy enforcement in extensions\n - CVE-2021-21128: Heap buffer overflow in Blink\n - CVE-2021-21129: Insufficient policy enforcement in File System API\n - CVE-2021-21130: Insufficient policy enforcement in File System API\n - CVE-2021-21131: Insufficient policy enforcement in File System API\n - CVE-2021-21132: Inappropriate implementation in DevTools\n - CVE-2021-21135: Inappropriate implementation in Performance API\n - CVE-2021-21137: Inappropriate implementation in DevTools\n - CVE-2021-21140: Uninitialized Use in USB\n - CVE-2021-21141: Insufficient policy enforcement in File System API\n - CVE-2021-21145: Use after free in Fonts\n - CVE-2021-21146: Use after free in Navigation\n - CVE-2021-21147: Inappropriate implementation in Skia\n - CVE-2021-21148: Heap buffer overflow in V8\n - CVE-2021-21149: Stack overflow in Data Transfer\n - CVE-2021-21150: Use after free in Downloads\n - CVE-2021-21152: Heap buffer overflow in Media\n - CVE-2021-21153: Stack overflow in GPU Process\n - CVE-2021-21156: Heap buffer overflow in V8\n - CVE-2021-21157: Use after free in Web Sockets\n\n This update was imported from the openSUSE:Leap:15.2:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Backports SLE-15-SP2:\n\n zypper in -t patch openSUSE-2021-1016=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-07-09T00:00:00", "type": "suse", "title": "Security update for libqt5-qtwebengine (important)", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-16044", "CVE-2021-21118", "CVE-2021-21119", "CVE-2021-21120", "CVE-2021-21121", "CVE-2021-21122", "CVE-2021-21123", "CVE-2021-21125", "CVE-2021-21126", "CVE-2021-21127", "CVE-2021-21128", "CVE-2021-21129", "CVE-2021-21130", "CVE-2021-21131", "CVE-2021-21132", "CVE-2021-21135", "CVE-2021-21137", "CVE-2021-21140", "CVE-2021-21141", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21156", "CVE-2021-21157"], "modified": "2021-07-09T00:00:00", "id": "OPENSUSE-SU-2021:1016-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/FA7FANKJNI72BRIWJCZ3TLBXXZJS7GLL/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-11-10T08:10:29", "description": "An update that fixes 42 vulnerabilities is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n Update to 89.0.4389.72 (boo#1182358, boo#1182960):\n\n - CVE-2021-21159: Heap buffer overflow in TabStrip.\n - CVE-2021-21160: Heap buffer overflow in WebAudio.\n - CVE-2021-21161: Heap buffer overflow in TabStrip.\n - CVE-2021-21162: Use after free in WebRTC.\n - CVE-2021-21163: Insufficient data validation in Reader Mode.\n - CVE-2021-21164: Insufficient data validation in Chrome for iOS.\n - CVE-2021-21165: Object lifecycle issue in audio.\n - CVE-2021-21166: Object lifecycle issue in audio.\n - CVE-2021-21167: Use after free in bookmarks.\n - CVE-2021-21168: Insufficient policy enforcement in appcache.\n - CVE-2021-21169: Out of bounds memory access in V8.\n - CVE-2021-21170: Incorrect security UI in Loader.\n - CVE-2021-21171: Incorrect security UI in TabStrip and Navigation.\n - CVE-2021-21172: Insufficient policy enforcement in File System API.\n - CVE-2021-21173: Side-channel information leakage in Network Internals.\n - CVE-2021-21174: Inappropriate implementation in Referrer.\n - CVE-2021-21175: Inappropriate implementation in Site isolation.\n - CVE-2021-21176: Inappropriate implementation in full screen mode.\n - CVE-2021-21177: Insufficient policy enforcement in Autofill.\n - CVE-2021-21178: Inappropriate implementation in Compositing.\n - CVE-2021-21179: Use after free in Network Internals.\n - CVE-2021-21180: Use after free in tab search.\n - CVE-2020-27844: Heap buffer overflow in OpenJPEG.\n - CVE-2021-21181: Side-channel information leakage in autofill.\n - CVE-2021-21182: Insufficient policy enforcement in navigations.\n - CVE-2021-21183: Inappropriate implementation in performance APIs.\n - CVE-2021-21184: Inappropriate implementation in performance APIs.\n - CVE-2021-21185: Insufficient policy enforcement in extensions.\n - CVE-2021-21186: Insufficient policy enforcement in QR scanning.\n - CVE-2021-21187: Insufficient data validation in URL formatting.\n - CVE-2021-21188: Use after free in Blink.\n - CVE-2021-21189: Insufficient policy enforcement in payments.\n - CVE-2021-21190: Uninitialized Use in PDFium.\n - CVE-2021-21149: Stack overflow in Data Transfer.\n - CVE-2021-21150: Use after free in Downloads.\n - CVE-2021-21151: Use after free in Payments.\n - CVE-2021-21152: Heap buffer overflow in Media.\n - CVE-2021-21153: Stack overflow in GPU Process.\n - CVE-2021-21154: Heap buffer overflow in Tab Strip.\n - CVE-2021-21155: Heap buffer overflow in Tab Strip.\n - CVE-2021-21156: Heap buffer overflow in V8.\n - CVE-2021-21157: Use after free in Web Sockets.\n - Fixed Sandbox with glibc 2.33 (boo#1182233)\n - Fixed an issue where chromium hangs on opening (boo#1182775).\n\n This update was imported from the openSUSE:Leap:15.2:Update update project.\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Backports SLE-15-SP2:\n\n zypper in -t patch openSUSE-2021-401=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-03-10T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 8.5, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-03-10T00:00:00", "id": "OPENSUSE-SU-2021:0401-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/F5HQTB6OX4JN5OFGWK6KZIS4UD7TGBXF/", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}, {"lastseen": "2022-04-18T12:40:33", "description": "An update that fixes 42 vulnerabilities is now available.\n\nDescription:\n\n This update for chromium fixes the following issues:\n\n Update to 89.0.4389.72 (boo#1182358, boo#1182960):\n\n - CVE-2021-21159: Heap buffer overflow in TabStrip.\n - CVE-2021-21160: Heap buffer overflow in WebAudio.\n - CVE-2021-21161: Heap buffer overflow in TabStrip.\n - CVE-2021-21162: Use after free in WebRTC.\n - CVE-2021-21163: Insufficient data validation in Reader Mode.\n - CVE-2021-21164: Insufficient data validation in Chrome for iOS.\n - CVE-2021-21165: Object lifecycle issue in audio.\n - CVE-2021-21166: Object lifecycle issue in audio.\n - CVE-2021-21167: Use after free in bookmarks.\n - CVE-2021-21168: Insufficient policy enforcement in appcache.\n - CVE-2021-21169: Out of bounds memory access in V8.\n - CVE-2021-21170: Incorrect security UI in Loader.\n - CVE-2021-21171: Incorrect security UI in TabStrip and Navigation.\n - CVE-2021-21172: Insufficient policy enforcement in File System API.\n - CVE-2021-21173: Side-channel information leakage in Network Internals.\n - CVE-2021-21174: Inappropriate implementation in Referrer.\n - CVE-2021-21175: Inappropriate implementation in Site isolation.\n - CVE-2021-21176: Inappropriate implementation in full screen mode.\n - CVE-2021-21177: Insufficient policy enforcement in Autofill.\n - CVE-2021-21178: Inappropriate implementation in Compositing.\n - CVE-2021-21179: Use after free in Network Internals.\n - CVE-2021-21180: Use after free in tab search.\n - CVE-2020-27844: Heap buffer overflow in OpenJPEG.\n - CVE-2021-21181: Side-channel information leakage in autofill.\n - CVE-2021-21182: Insufficient policy enforcement in navigations.\n - CVE-2021-21183: Inappropriate implementation in performance APIs.\n - CVE-2021-21184: Inappropriate implementation in performance APIs.\n - CVE-2021-21185: Insufficient policy enforcement in extensions.\n - CVE-2021-21186: Insufficient policy enforcement in QR scanning.\n - CVE-2021-21187: Insufficient data validation in URL formatting.\n - CVE-2021-21188: Use after free in Blink.\n - CVE-2021-21189: Insufficient policy enforcement in payments.\n - CVE-2021-21190: Uninitialized Use in PDFium.\n - CVE-2021-21149: Stack overflow in Data Transfer.\n - CVE-2021-21150: Use after free in Downloads.\n - CVE-2021-21151: Use after free in Payments.\n - CVE-2021-21152: Heap buffer overflow in Media.\n - CVE-2021-21153: Stack overflow in GPU Process.\n - CVE-2021-21154: Heap buffer overflow in Tab Strip.\n - CVE-2021-21155: Heap buffer overflow in Tab Strip.\n - CVE-2021-21156: Heap buffer overflow in V8.\n - CVE-2021-21157: Use after free in Web Sockets.\n - Fixed Sandbox with glibc 2.33 (boo#1182233)\n - Fixed an issue where chromium hangs on opening (boo#1182775).\n\n\nPatch Instructions:\n\n To install this openSUSE Security Update use the SUSE recommended installation methods\n like YaST online_update or \"zypper patch\".\n\n Alternatively you can run the command listed for your product:\n\n - openSUSE Leap 15.2:\n\n zypper in -t patch openSUSE-2021-392=1", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-03-08T00:00:00", "type": "suse", "title": "Security update for chromium (important)", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 8.5, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-03-08T00:00:00", "id": "OPENSUSE-SU-2021:0392-1", "href": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/S66YPMC4VLRMKQGSTL3XFAVYDCVH7ADY/", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}], "freebsd": [{"lastseen": "2022-01-19T15:51:30", "description": "\n\nChrome Releases reports:\n\n[1170176] High CVE-2021-21148: Heap buffer overflow in V8.\n\t Reported by Mattias Buelens on 2021-01-24. Google is aware of\n\t reports that an exploit for CVE-2021-21148 exists in the wild.\n\n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-02-04T00:00:00", "type": "freebsd", "title": "chromium -- heap buffer overflow in V8", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-04T00:00:00", "id": "3E01AAD2-680E-11EB-83E2-E09467587C17", "href": "https://vuxml.freebsd.org/freebsd/3e01aad2-680e-11eb-83e2-e09467587c17.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-01-19T15:51:30", "description": "\n\nChrome Releases reports:\n\nThis release includes 5 security fixes, including:\n\n[1167357] High CVE-2021-21191: Use after free in WebRTC.\n\t Reported by raven (@raid_akame) on 2021-01-15\n[1181387] High CVE-2021-21192: Heap buffer overflow in tab\n\t groups. Reported by Abdulrahman Alqabandi, Microsoft Browser\n\t Vulnerability Research on 2021-02-23\n[1186287] High CVE-2021-21193: Use after free in Blink.\n\t Reported by Anonymous on 2021-03-09\n\n\n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-12T00:00:00", "type": "freebsd", "title": "chromium -- multiple vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-11191", "CVE-2021-11192", "CVE-2021-11193", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-12T00:00:00", "id": "B81AD6D6-8633-11EB-99C5-E09467587C17", "href": "https://vuxml.freebsd.org/freebsd/b81ad6d6-8633-11eb-99c5-e09467587c17.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-01-19T15:51:30", "description": "\n\nChrome Releases reports:\n\nThis release includes 47 security fixes, including the below.\n\t Google is aware of reports that an exploit for CVE-2021-21166 exists\n\t in the wild. Please see URL for details.\n\n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-02T00:00:00", "type": "freebsd", "title": "chromium -- multiple vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 8.5, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-03-02T00:00:00", "id": "F00B65D8-7CCB-11EB-B3BE-E09467587C17", "href": "https://vuxml.freebsd.org/freebsd/f00b65d8-7ccb-11eb-b3be-e09467587c17.html", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}], "attackerkb": [{"lastseen": "2022-06-29T20:35:00", "description": "Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.150 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\n\n \n**Recent assessments:** \n \n**gwillcox-r7** at February 05, 2021 4:25pm UTC reported:\n\nReported as exploited in the wild at <https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>. Several news articles such as <https://www.theverge.com/2021/2/5/22267872/chrome-88-zero-day-vulnerability-government-backed-hackers-security-researchers> have suggested that given the timing of this bug, and that it was reported one day before Google\u2019s report on the North Korea hackers targeting security researchers (see <https://www.theverge.com/2021/1/26/22250060/google-threat-analysis-group-north-korean-hackers-cybersecurity-researchers-social-engineering>), it may be related to the 0day Chrome bug that was used by North Korean state actors in that engagement.\n\nGiven this is a remote heap overflow in the browser there may be some concerns regarding reliability though and whilst I\u2019m sure there will be public exploits for this bug, I do question how reliable they will be given the nature of trying to exploit heap exploits. I would imagine the exploit would take advantage of JavaScript to craft the heap appropriately. Therefore a temporary, but not recommended, precaution may be to disable JavaScript in Chrome until one can apply this update.\n\nPlease note that Chrome will automatically apply the update if you open and close your browser. However people do tend to keep Chrome open with many tabs and then suspend their PC at the end of the day, so its possible that these patches will likely see an uptick in application when the next Patch Tuesday or company wide patch cycle is enforced and people are forced to reboot their PCs to apply patches, and therefore restart Chrome.\n\nAssessed Attacker Value: 0 \nAssessed Attacker Value: 0Assessed Attacker Value: 0\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-02-09T00:00:00", "type": "attackerkb", "title": "CVE-2021-21148", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148"], "modified": "2021-02-13T00:00:00", "id": "AKB:B61D2687-96CE-4CE9-939F-9E35DA7814C4", "href": "https://attackerkb.com/topics/9stbF9rFqe/cve-2021-21148", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-12-09T04:57:03", "description": "Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.\n\n \n**Recent assessments:** \n \n**gwillcox-r7** at March 08, 2021 5:47pm UTC reported:\n\nReported as exploited in the wild at <https://threatpost.com/google-patches-actively-exploited-flaw-in-chrome-browser/164468/> and at <https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html>.\n\nDetails are still scant on this vulnerability as they are being withheld by Google until more people have patched the issue, which was fixed in Chrome 89.0.4389.72. All that we know is that the bug is labeled as an `Object lifecycle issue in audio` and was found by `Alison Huffman, Microsoft Browser Vulnerability Research on 2021-02-11`.\n\nGiven the description of this vulnerability as well as its link to a similar vulnerability exploited in the wild in the past (see <https://threatpost.com/google-discloses-chrome-flaw-exploited-in-the-wild/149784/>), its likely that this is a UAF vulnerability. Given the one used in <https://threatpost.com/google-discloses-chrome-flaw-exploited-in-the-wild/149784/> was a bug in the same component which was then used in the WizardOpium attacks, its likely that this vulnerability will lead to full compromise of the system given past history.\n\nUsers are encouraged to disable JavaScript where possible, particularly for untrusted sites, as this is often needed in order to successfully exploit UAF vulnerabilities in the browser. However this is only a temporary fix, and it is strongly encouraged that users instead upgrade to Chrome 89.0.4389.72 or later, Given there is already active exploitation of this vulnerability, and given the history of bugs within this component, there is a good possibility that we may see more widespread exploitation of this issue in the near future.\n\nAssessed Attacker Value: 5 \nAssessed Attacker Value: 5Assessed Attacker Value: 3\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-09T00:00:00", "type": "attackerkb", "title": "CVE-2021-21166", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-13720", "CVE-2021-21166"], "modified": "2021-03-12T00:00:00", "id": "AKB:DFA61FBF-688B-44E9-8B09-134E93207AD9", "href": "https://attackerkb.com/topics/VffVzAAdhq/cve-2021-21166", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "threatpost": [{"lastseen": "2021-03-03T22:09:38", "description": "The ObliqueRAT malware is now cloaking its payloads as seemingly-innocent image files that are hidden on compromised websites.\n\nThe remote access trojan (RAT), which has been operating since 2019, spreads via emails, which have malicious Microsoft Office documents attached. Previously, payloads were embedded into the documents themselves. Now, if users click on the attachment, they\u2019re redirected to malicious URLs where the payloads are hidden with steganography.\n\nResearchers warn that this new tactic has been seen helping ObliqueRAT operators to avoid detection during the malware\u2019s targeting of various organizations in South Asia \u2014 where the goal is to ultimately sends victims an email with malicious Microsoft Office documents, which, once clicked, fetch the payloads and ultimately exfiltrate various data from the victim.\n\n[![](https://media.threatpost.com/wp-content/uploads/sites/103/2019/02/19151457/subscribe2.jpg)](<https://threatpost.com/newsletter-sign/>)\n\n\u201cThis new campaign is a typical example of how adversaries react to attack disclosures and evolve their infection chains to evade detections,\u201d said Asheer Malhotra, researcher with Cisco Talos, [on Tuesday](<https://blog.talosintelligence.com/2021/02/obliquerat-new-campaign.html>). \u201cModifications in the ObliqueRAT payloads also highlight the usage of obfuscation techniques that can be used to evade traditional signature-based detection mechanisms.\u201d\n\n## **What is the ObliqueRAT Malware?**\n\n[The known activity for ObliqueRAT](<https://blog.talosintelligence.com/2020/02/obliquerat-hits-victims-via-maldocs.html>) dates back to November 2019, part of a campaign targeting entities in Southeast Asia and uncovered by Cisco Talos researchers in February 2020. ObliqueRAT operators have always used emails with malicious attachments as an initial infection vector. Generally the infection chain uses an initial executable, which acts as a dropper for ObliqueRAT itself.\n\nOnce it infected systems, ObliqueRAT exfiltrates various information, including system data, a list of drives and a list of running processes.\n\n## **ObliqueRAT Malware Evolution**\n\nThe newly discovered ObliqueRAT attack chain was part of a campaign that started in May last year \u2013 but which was only recently uncovered by researchers. In addition to the use of URL redirects, the payloads themselves have also been given an update, now consisting of seemingly benign bitmap image files (BMP).\n\n[![ObliqueRAT-payload](https://media.threatpost.com/wp-content/uploads/sites/103/2021/03/02102115/ObliqueRAT-Payloads-300x218.png)](<https://media.threatpost.com/wp-content/uploads/sites/103/2021/03/02102115/ObliqueRAT-Payloads.png>)\n\nThe new attack chain used by ObliqueRAT. Credit: Cisco Talos\n\nThe image files contain both legitimate image data and malicious executable bytes concealed in the image data, said researchers. Threatpost has reached out to Cisco Talos for further information on the compromised websites and the images used as part of the attack.\n\nThis is a well-known tactic used by [threat actors, called steganography](<https://threatpost.com/steganography-pinpoint-attacks-industrial-targets/156151/>). Attackers hide malware in image files as a way to circumvent detection. That\u2019s because many filters and gateways [let image file formats pass without too much scrutiny](<https://threatpost.com/rare-steganography-hack-can-compromise-fully-patched-websites/146701/>).\n\nThe initial email sent to victims contains malicious documents with new macros, which redirect users to the malicious URLs containing these payloads. The malicious macros consequently download the BMP files, and the ObliqueRAT payload is extracted to the disk.\n\nThere are slight variations that have been seen in real-world attacks. One instance of a malicious document that researchers found \u201cuses a similar technique, with the difference being that the payload hosted on the compromised website is a BMP image containing a .ZIP file that contains ObliqueRAT payload,\u201d said Malhotra. \u201cThe malicious macros are responsible for extracting the .ZIP and subsequently the ObliqueRAT payload on the endpoint.\u201d\n\nDuring the course of their investigation, researchers also discovered three previously used but never-before-seen payloads for ObliqueRAT, which showed how the malware authors have made changes over time. For instance, one of the versions created in September added new file enumeration and stealing capabilities, as well as expanded the payload\u2019s functionalities to include the ability to take webcam and desktop screenshots and recordings.\n\n## **ObliqueRAT: Hiding From Detection, Improved Persistence**\n\nThis updated payload delivery technique gives attackers a leg up in sidestepping detection, said researchers.\n\n[![ObliqueRAT-payload](https://media.threatpost.com/wp-content/uploads/sites/103/2021/03/02102156/ObliqueRAT-Payloads-2-295x300.png)](<https://media.threatpost.com/wp-content/uploads/sites/103/2021/03/02102156/ObliqueRAT-Payloads-2.png>)\n\nThe evolution of ObliqueRAT\u2019s payloads. Credit: Cisco Talos\n\n\u201cIt is highly likely that these changes are in response to previous disclosures to achieve evasion for these new campaigns,\u201d they said. \u201cThe usage of compromised websites is another attempt at detection evasion.\u201d\n\nThe macros also have adopted a new tactic for achieving reboot persistence for the ObliqueRAT payloads. This is accomplished by creating a shortcut (.URL file extension) in the infected user\u2019s Startup directory, said researchers. Once the computer reboots, the payloads will then still be able to run.\n\n## **RevengeRAT: Researchers Link With \u2018Low Confidence\u2019**\n\nResearchers said that they observed overlaps in the command-and-control (C2) server infrastructure between ObliqueRAT and a RevengeRAT campaign. However, they only made the connection with \u201clow confidence\u201d due to lack of any other more substantial evidence.\n\nRevengeRAT is a [commodity malware family](<https://threatpost.com/malware-dropper-dual-rats/150271/>) that [has been used](<https://threatpost.com/iranian-apt33-shakes-up-cyberespionage-tactics/146041/>) by Iran-linked, espionage-focused [threat group APT33](<https://threatpost.com/apt33-mounts-targeted-botnet-attacks-us/150248/>) in the past. The RAT collects and exfiltrates information from the victim\u2019s system.\n\nPreviously, researchers also made links between ObliqueRAT and Crimson RAT. The functionalities of Crimson RAT [include stealing credentials](<https://threatpost.com/apt36-taps-coronavirus-as-golden-opportunity-to-spread-crimson-rat/153776/>) from victims\u2019 browsers, capturing screenshots, collecting antivirus software information, and listing the running processes, drives and directories from victim machines. Researchers said that the two RATs shared \u201csimilar maldocs and macros\u201d in previous ObliqueRAT campaigns.\n\n\u201cThis malware has links to the Transparent Tribe group that has historically targeted entities in South Asia,\u201d Malhotra told Threatpost. \u201cAs is the case with most suspected APT campaigns, this campaign is also low volume. A low-volume campaign has better chances of remaining undiscovered for longer periods of time thus increasing the chances of success for the attackers.\u201d\n", "cvss3": {}, "published": "2021-03-02T17:06:51", "type": "threatpost", "title": "Compromised Website Images Camouflage ObliqueRAT Malware", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-21166"], "modified": "2021-03-02T17:06:51", "id": "THREATPOST:CF9E25BD324C5940B0795721CA134155", "href": "https://threatpost.com/website-images-obliquerat-malware/164395/", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-02-05T15:56:30", "description": "Google is warning of a zero-day vulnerability in its V8 open-source web engine that\u2019s being actively exploited by attackers.\n\nA patch has been issued in version 88 of Google\u2019s Chrome browser \u2014 specifically, version 88.0.4324.150 for Windows, Mac and Linux. This update will roll out over the coming days and weeks, said Google. The flaw ([CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-21148>)) stems from a heap-buffer overflow, said Google.\n\n\u201cGoogle is aware of reports that an exploit for CVE-2021-21148 exists in the wild,\u201d according to [Google\u2019s Thursday security update](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>).\n\n## **What is a Heap-Buffer Overflow Security Flaw?**\n\nA heap-buffer overflow flaw as its name suggests, is a type of [buffer-overflow error.](<https://cwe.mitre.org/data/definitions/122.html>) This is a class of vulnerability where the region of a process\u2019 memory used to store dynamic variables (the heap) can be overwhelmed. If a buffer-overflow occurs, it typically causes the affected program to behave incorrectly, [according to researchers with Imperva](<https://www.imperva.com/learn/application-security/buffer-overflow/>) \u2013 causing memory access errors and crashes \u2014 and opening the door to remote code execution.\n\nHowever, beyond classifying the flaw as a heap-buffer overflow, Google did not specify the potential impact of this vulnerability. In fact, details of the bug overall (including how it can be exploited) remain scant while Google works to push out the fixes.\n\n\u201cAccess to bug details and links may be kept restricted until a majority of users are updated with a fix,\u201d said Google. \u201cWe will also retain restrictions if the bug exists in a third-party library that other projects similarly depend on, but haven\u2019t yet fixed.\u201d\n\n## **What is the V8 JavaScript Engine?**\n\nThe heap-buffer overflow error exists in V8, an open-source WebAssembly and JavaScript engine developed by the Chromium Project for Google Chrome and Chromium web browsers. V8, which is written in C++, can run stand-alone, or can be embedded into any C++ application.\n\nBugs have previously been discovered (and exploited) in V8, including a flaw in November that was high-severity and tied to active exploits. That flaw [was only described as](<https://threatpost.com/chrome-holes-actively-targeted/160890/>) an \u201cinappropriate implementation in V8.\u201d** **\n\n## **Security Researchers: Targets for Chrome Zero-Day Exploits?**\n\nWhile Google didn\u2019t provide further details of the attackers exploiting the flaw, researchers with Malwarebytes on Friday made a \u201cgeneral assumption\u201d that the attack \u201cwas used against security researchers working on vulnerability research and development at different companies and organizations.\u201d\n\nThey pointed to the timing of when the vulnerability was reported to Google by Mattias Buelens (Jan. 24) and when a report released by Google\u2019s Threat Analysis Group (Jan. 26). That report [by Google researchers](<https://threatpost.com/north-korea-security-researchers-0-day/163333/>) revealed that hackers linked to [North Korea](<https://threatpost.com/north-korea-spy-reporters-feds-warn/160622/>) were targeting security researchers with an elaborate social-engineering campaign that set up trusted relationships with them \u2014 and then infected their organizations\u2019 systems with custom backdoor malware.\n\n\u201cOne of the methods the attackers used was to interact with the researchers and get them to follow a link on Twitter to a write-up hosted on a malicious website,\u201d said [researchers with Malwarebytes](<https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/02/update-now-chrome-patches-zero-day-that-was-exploited-in-the-wild/>). \u201cShortly after the visit, a malicious service was installed on the researcher\u2019s system and an in-memory backdoor would begin to communicate with a command and control (C&C) server. This sure sounds like something that could be accomplished using a heap buffer overflow in a browser.\u201d\n\nHowever, Google has not confirmed any correlation with this attack.\n\n## **Google Chrome Browser: How to Update**\n\nResearchers urge Google Chrome users to update as soon as possible. Chrome will in many cases update to its newest version automatically, however security experts suggest that users double check that this has happened. To check if an update is available:\n\n * Google Chrome users can go to chrome://settings/help by clicking Settings > About Chrome\n * If an update is available Chrome will notify users and then start the download process\n * Users can then relaunch the browser to complete the update\n\n## ** ****Google Chrome Cybersecurity Flaws Continue **\n\nThe flaw is only the latest security issue in Google Chrome in recent months. In January, the Cybersecurity and Infrastructure Security Agency (CISA) [urged Windows, macOS and Linux users](<https://threatpost.com/firefox-chrome-edge-bugs-system-hijacking/162873/>) of Google\u2019s Chrome browser to patch an out-of-bounds write bug (CVE-2020-15995) impacting the current 87.0.4280.141 version of the software.\n\nAnd in December, Google updated Chrome to fix four bugs with a severity rating of \u201chigh\u201d and eight overall. [Three were use-after-free flaws](<https://threatpost.com/google_chrome_bugs_patched/161907/>), which could allow an adversary to generate an error in the browser\u2019s memory, opening the door to a browser hack and host computer compromise.\n\n**Download our exclusive **[**FREE Threatpost Insider eBook**](<https://threatpost.com/ebooks/healthcare-security-woes-balloon-in-a-covid-era-world/?utm_source=FEATURE&utm_medium=FEATURE&utm_campaign=Nov_eBook>) _**Healthcare Security Woes Balloon in a Covid-Era World**_**, sponsored by ZeroNorth, to learn more about what these security risks mean for hospitals at the day-to-day level and how healthcare security teams can implement best practices to protect providers and patients. Get the whole story and **[**DOWNLOAD the eBook now**](<https://threatpost.com/ebooks/healthcare-security-woes-balloon-in-a-covid-era-world/?utm_source=ART&utm_medium=ART&utm_campaign=Nov_eBook>)** \u2013 on us!**\n\nWrite a comment\n\n**Share this article:**\n\n * [Hacks](<https://threatpost.com/category/hacks/>)\n * [Vulnerabilities](<https://threatpost.com/category/vulnerabilities/>)\n * [Web Security](<https://threatpost.com/category/web-security/>)\n", "cvss3": {}, "published": "2021-02-05T15:47:55", "type": "threatpost", "title": "Google Chrome Zero-Day Afflicts Windows, Mac Users", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2020-15995", "CVE-2021-21148"], "modified": "2021-02-05T15:47:55", "id": "THREATPOST:398E85215A3E7B7329EE3FED8F6374FF", "href": "https://threatpost.com/google-chrome-zero-day-windows-mac/163688/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-03-15T15:47:32", "description": "Google is hurrying out a fix for a vulnerability in its Chrome browser that\u2019s under active attack \u2013 its third zero-day flaw so far this year. If exploited, the flaw could allow remote code-execution and denial-of-service attacks on affected systems.\n\nThe vulnerability exists in Blink, t[he browser engine for Chrome](<https://threatpost.com/google-high-severity-blink-browser-engine-flaw/147770/>) developed as part of the Chromium project. Browser engines convert HTML documents and other web page resources into the visual representations viewable to end users.\n\n\u201cThe Stable channel has been updated to 89.0.4389.90 for Windows, Mac and Linux which will roll out over the coming days/weeks,\u201d according to [Google\u2019s Friday security update.](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>)\n\n[![](https://media.threatpost.com/wp-content/uploads/sites/103/2019/02/19151457/subscribe2.jpg)](<https://threatpost.com/newsletter-sign/>)\n\nThe flaw (CVE-2021-21193) ranks 8.8 out of 10 on the CVSS vulnerability-rating scale, making it high-severity. It\u2019s a [use-after-free vulnerability](<https://threatpost.com/firefox-chrome-edge-bugs-system-hijacking/162873/>), which relates to incorrect use of dynamic memory during program operation. If after freeing a memory location, a program does not clear the pointer to that memory, an attacker can use the error to hack the program, according to a description of the vulnerability.\n\n## **Use-After-Free Zero-Day Flaw**\n\nAccording to an [IBM X-Force vulnerability report](<https://exchange.xforce.ibmcloud.com/vulnerabilities/198135>), the flaw could allow a remote attacker to execute arbitrary code on the system.\n\n\u201cBy persuading a victim to visit a specially crafted website, a remote attacker could exploit this vulnerability to execute arbitrary code or cause a denial-of-service condition on the system,\u201d according to the report.\n\nFurther details are scant because \u201caccess to bug details and links may be kept restricted until a majority of users are updated with a fix,\u201d according to Google. The bug was credited to an anonymous reporter.\n\nGoogle also did not provide further specifics on the exploits other than to say it \u201cis aware of reports that an exploit for CVE-2021-21193 exists in the wild.\u201d\n\nThreatpost has reached out to Google for further comment.\n\n## **Other Google Chrome Security Flaws**\n\nBeyond the zero-day flaw, Google issued four other security fixes on Friday.\n\nThese included another high-severity use-after-free flaw (CVE-2021-21191), which exists in WebRTC. WebRTC, which stands for web real-time communications, is an open-source project that gives web browsers and mobile applications interactive communications capabilities (such as voice, video and chat). The flaw was reported by someone who goes under the alias \u201craven\u201d (@raid_akame on Twitter).\n\nAnother high-severity flaw is a heap-buffer overflow error (CVE-2021-21192) that stems from Chrome tab groups. The flaw was reported by Abdulrahman Alqabandi with Microsoft Browser Vulnerability Research.\n\n## **Third Zero-Day Chrome Security Flaw This Year**\n\nThe use-after-free flaw is the third zero-day flaw to plague Google\u2019s Chrome browser in the past three months \u2014 and the second this month alone. Earlier in March, [Google said it fixed](<https://threatpost.com/google-patches-actively-exploited-flaw-in-chrome-browser/164468/>) a high-severity zero-day vulnerability in its Chrome browser, which stems from the audio component of the browser.\n\nAnd in February, [Google warned of a zero-day vulnerability](<https://threatpost.com/google-chrome-zero-day-windows-mac/163688/>) in its V8 open-source web engine that\u2019s being actively exploited by attackers; a patch for which was issued in version 88 of Google\u2019s Chrome browser.\n\nChrome will in many cases update to its newest version automatically \u2014 however, Chrome users can double check if an update has been applied:\n\n * Google Chrome users can go to chrome://settings/help by clicking Settings > About Chrome\n * If an update is available Chrome will notify users and then start the download process\n * Users can then relaunch the browser to complete the update\n\n**_Check out our free [upcoming live webinar events](<https://threatpost.com/category/webinars/>) \u2013 unique, dynamic discussions with cybersecurity experts and the Threatpost community:_**\n\n * March 24: **Economics of 0-Day Disclosures: The Good, Bad and Ugly **([Learn more and register!](<https://threatpost.com/webinars/economics-of-0-day-disclosures-the-good-bad-and-ugly/>))\n * April 21: **Underground Markets: A Tour of the Dark Economy **([Learn more and register!](<https://threatpost.com/webinars/underground-markets-a-tour-of-the-dark-economy/>))\n", "cvss3": {}, "published": "2021-03-15T15:40:21", "type": "threatpost", "title": "Google Warns Mac, Windows Users of Chrome Zero-Day Flaw", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-15T15:40:21", "id": "THREATPOST:F2924795225F38CC02ED6F6A0AA4416D", "href": "https://threatpost.com/google-mac-windows-chrome-zero-day/164759/", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2021-09-14T15:21:25", "description": "Google has addressed two zero-day security bugs that are being actively exploited in the wild.\n\nAs part of the internet giant\u2019s latest stable channel release (version 93.0.4577.82 for Windows, Mac and Linux), it fixed 11 total vulnerabilities, all of them rated high-severity. The two zero days are tracked as CVE-2021-30632 and CVE-2021-30633.\n\n\u201cGoogle is aware that exploits for [these] exist in the wild,\u201d the company said in its short website notice on the update, [issued Monday](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html>).\n\n[![Infosec Insiders Newsletter](https://media.threatpost.com/wp-content/uploads/sites/103/2021/07/10165815/infosec_insiders_in_article_promo.png)](<https://threatpost.com/infosec-insider-subscription-page/?utm_source=ART&utm_medium=ART&utm_campaign=InfosecInsiders_Newsletter_Promo/>)\n\nGoogle is restricting any technical details \u201cuntil a majority of users are updated with a fix,\u201d it said. The vulnerabilities were reported anonymously, precluding any gleaning of details from the researcher who found them. Here\u2019s what we know:\n\n * CVE-2021-30632: Out of bounds write in V8 JavaScript Engine; and\n * CVE-2021-30633: Use after free in the IndexedDB API.\n\nOut-of-bounds write flaws [can result in](<https://cwe.mitre.org/data/definitions/787.html>) corruption of data, a crash or code execution. Use-after-free issues [can result in](<https://cwe.mitre.org/data/definitions/416.html>) any number of attack types, ranging from the corruption of valid data to the execution of arbitrary code. Both bugs have TBD bug-bounty awards attached to them and were reported on Sept. 8.\n\nV8 is Google\u2019s open-source, high-performance JavaScript and WebAssembly engine for Chrome and Chromium-based browsers. It translates JavaScript code into a more efficient machine code instead of using an interpreter, which speeds up the web browser. Since this vulnerable components is not specific to Google Chrome, it\u2019s a good bet that other browsers are affected by the bug as well.\n\nIndexedDB, meanwhile, allows users to persistently store large amounts of structured data client-side, inside their browsers. The API is a JavaScript application programming interface provided by web browsers for managing these NoSQL databases. It\u2019s a standard maintained by the World Wide Web Consortium.\n\n\u201cBrowser bugs discovered from exploitation in the wild are among the most significant security threats,\u201d John Bambenek, principal threat hunter at Netenrich, said via email. \u201cNow that they are patched, exploitation will ramp up. That said, almost 20 years on and we haven\u2019t made web browsing safe shows that the rapid embrace of technology continues to leave users exposed to criminals and nation-state actors. Everyone wants to learn how to hack, too few people are working on defense.\u201d\n\nThe other nine bugs addressed by Google are as follows:\n\n * CVE-2021-30625: Use after free in Selection API. _Reported by Marcin Towalski of Cisco Talos on 2021-08-06_\n * CVE-2021-30626: Out of bounds memory access in ANGLE. _Reported by Jeonghoon Shin of Theori on 2021-08-18_\n * CVE-2021-30627: Type Confusion in Blink layout. _Reported by Aki Helin of OUSPG on 2021-09-01_\n * CVE-2021-30628: Stack buffer overflow in ANGLE. _Reported by Jaehun Jeong(@n3sk) of Theori on 2021-08-18_\n * CVE-2021-30629: Use after free in Permissions. _Reported by Weipeng Jiang (@Krace) from Codesafe Team of Legendsec at Qi\u2019anxin Group on 2021-08-26_\n * CVE-2021-30630: Inappropriate implementation in Blink. _Reported by SorryMybad (@S0rryMybad) of Kunlun Lab on 2021-08-30_\n * CVE-2021-30631: Type Confusion in Blink layout. _Reported by Atte Kettunen of OUSPG on 2021-09-06_\n\nKevin Dunne, president at Pathlock, pointed out that Google has patched plenty of zero-days already this year \u2013 eight prior to the latest two, to be exact \u2013 and he said to expect more.\n\n## **10th Zero-Day in 2021 for Google**\n\n\u201cToday, Google released a patch for its tenth [and ninth] zero-day exploit of the year,\u201d Dunne said in an email to media. \u201cThis milestone highlights the emphasis that bad actors are putting on browser exploits, with Chrome becoming a clear favorite, allowing a streamlined way to gain access to millions of devices regardless of OS.\n\n\u201cWe expect to see continued zero-day exploits in the wild,\u201d he added.\n\nThe other zero days discovered so far in 2021 are as follows, many of them in the V8 engine:\n\n * [CVE-2021-21148](<https://threatpost.com/google-chrome-zero-day-windows-mac/163688/>) \u2013 (February)\n * [CVE-2021-21166](<https://threatpost.com/google-patches-actively-exploited-flaw-in-chrome-browser/164468/>) \u2013 (March)\n * [CVE-2021-21193](<https://threatpost.com/google-mac-windows-chrome-zero-day/164759/>) \u2013 (March)\n * [CVE-2021-21220](<https://threatpost.com/chrome-zero-day-exploit-twitter/165363/>) \u2013 (April)\n * [CVE-2021-21224](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21224>) \u2013 (April, later [used in Windows attacks](<https://threatpost.com/microsoft-patch-tuesday-in-the-wild-exploits/166724/>))\n * [CVE-2021-30551](<https://threatpost.com/chrome-browser-bug-under-attack/166804/>) \u2013 (June)\n * [CVE-2021-30554](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30554>) \u2013 (June)\n * [CVE-2021-30563](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30563>) \u2013 (July)\n\n\u201cGoogle\u2019s commitment to patching these exploits quickly is commendable, as they operate Google Chrome as freeware and therefore are the sole entity who can provide these updates,\u201d Dunne wrote. \u201cGoogle is committed to providing Chrome as a free browser, as it is a critical entry point for other businesses such as Google Search and Google Workspace.\u201d\n\nThe news comes as Apple [rushed a fix](<https://threatpost.com/apple-emergency-fix-nso-zero-click-zero-day/169416/>) for a zero-click zero-day exploit targeting iMessaging. It\u2019s allegedly been used to illegally spy on Bahraini activists with NSO Group\u2019s Pegasus spyware, according to researchers.\n\nMicrosoft is also expected to release its monthly Patch Tuesday set of updates today, so we\u2019ll see if there are yet more zero-day exploits to worry about.\n\n**It\u2019s time to evolve threat hunting into a pursuit of adversaries. **[**JOIN**](<https://threatpost.com/webinars/threat-hunting-catch-adversaries/?utm_source=ART&utm_medium=ART&utm_campaign=September_Cybersixgill_Webinar>)** Threatpost and Cybersixgill for **[**Threat Hunting to Catch Adversaries, Not Just Stop Attacks**](<https://threatpost.com/webinars/threat-hunting-catch-adversaries/?utm_source=ART&utm_medium=ART&utm_campaign=September_Cybersixgill_Webinar>)** and get a guided tour of the dark web and learn how to track threat actors before their next attack. **[**REGISTER NOW**](<https://threatpost.com/webinars/threat-hunting-catch-adversaries/?utm_source=ART&utm_medium=ART&utm_campaign=September_Cybersixgill_Webinar>)** for the LIVE discussion on Sept. 22 at 2 p.m. EST with Cybersixgill\u2019s Sumukh Tendulkar and Edan Cohen, along with independent researcher and vCISO Chris Roberts and Threatpost host Becky Bracken.**\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-09-14T15:03:41", "type": "threatpost", "title": "Pair of Google Chrome Zero-Day Bugs Actively Exploited", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30625", "CVE-2021-30626", "CVE-2021-30627", "CVE-2021-30628", "CVE-2021-30629", "CVE-2021-30630", "CVE-2021-30631", "CVE-2021-30632", "CVE-2021-30633"], "modified": "2021-09-14T15:03:41", "id": "THREATPOST:88DD5812D3C8652E304F32507E4F68DD", "href": "https://threatpost.com/google-chrome-zero-day-exploited/169442/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-02-15T21:47:28", "description": "Google on Monday issued 11 security fixes for its Chrome browser, including a high-severity zero-day bug that\u2019s actively being jumped on by attackers in the wild.\n\nIn a brief update, Google [described](<https://chromereleases.googleblog.com/2022/02/stable-channel-update-for-desktop_14.html>) the weakness, tracked as [CVE-2022-0609](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0609>), as a [use-after-free](<https://cwe.mitre.org/data/definitions/416.html>) vulnerability in Chrome\u2019s Animation component. This kind of flaw can lead to all sorts of misery, ranging from the corruption of valid data to the execution of arbitrary code on vulnerable systems. Such flaws can also be used to escape the browser\u2019s security sandbox.\n\n\u201cGoogle is aware of reports that an exploit for CVE-2022-0609 exists in the wild,\u201d according to its security update.\n\nChrome users can fix it straight away, though, by going into the Chrome menu > Help > About Google Chrome.\n\nGiven that the zero day is under active attack, updating Chrome should be done ASAP.\n\n[![](https://media.threatpost.com/wp-content/uploads/sites/103/2022/02/15125804/Chrome-zero-day-e1644947947750.png)](<https://media.threatpost.com/wp-content/uploads/sites/103/2022/02/15125804/Chrome-zero-day-e1644947947750.png>)\n\nChrome security updates. Source: Google.\n\nCredit for the Animation zero day goes to Adam Weidemann and Cl\u00e9ment Lecigne, both from Google\u2019s Threat Analysis Group (TAG).\n\nMonday\u2019s update also plastered over four other high-severity use-after-free flaws found in Chrome\u2019s Webstore API, File Manager, [ANGLE](<https://en.wikipedia.org/wiki/ANGLE_\$software\$>) and GPU. As well, the company addressed a high-severity integer overflow in [Mojo](<https://chromium.googlesource.com/chromium/src/+/main/docs/mojo_and_services.md>), plus a high-severity h\u200beap buffer overflow in Tab Groups. Finally, Google patched a medium-severity issue with inappropriate implementation in Gamepad API.\n\n## And So It Begins\n\nThis is Chrome\u2019s first zero day of the year, and more are sure to follow. But at least we\u2019ve made it into the new-ish year 10 more days than we managed in 2021, when the first bug to hit arrived on Feb. 4.\n\nLast year delivered a total of these 16 Chrome zero days:\n\n * [CVE-2021-21148](<https://threatpost.com/google-chrome-zero-day-windows-mac/163688/>) \u2013 Feb. 4, a vulnerability in its V8 open-source web engine.\n * [CVE-2021-21166](<https://threatpost.com/google-patches-actively-exploited-flaw-in-chrome-browser/164468/>) \u2013 March 2, a flaw in the Audio component of Google Chrome.\n * [CVE-2021-21193](<https://threatpost.com/google-mac-windows-chrome-zero-day/164759/>) \u2013 March 12, a use-after-free flaw in Blink, [the browser engine for Chrome](<https://threatpost.com/google-high-severity-blink-browser-engine-flaw/147770/>) that was developed as part of the Chromium project.\n * [CVE-2021-21220](<https://threatpost.com/chrome-zero-day-exploit-twitter/165363/>) \u2013 April 13, a remote-code execution issue.\n * [CVE-2021-21224](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21224>) \u2013 April 20, an issue with type confusion in V8 in Google Chrome that could have allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.\n * [CVE-2021-30551](<https://threatpost.com/chrome-browser-bug-under-attack/166804/>) \u2013- June 9, a type confusion bug within Google\u2019s V8 open-source JavaScript and WebAssembly engine.\n * [CVE-2021-30554](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30554>) \u2013 June 17, a use-after-free bug.\n * [CVE-2021-30563](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30563>) \u2013 July 15, type confusion in V8.\n * [CVE-2021-30632 and CVE-2021-30633](<https://threatpost.com/google-chrome-zero-day-exploited/169442/>) \u2013 Sept. 13, an out-of-bounds write in V8 and a use-after-free bug in the IndexedDB API, respectively.\n * [CVE-2021-37973](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37973>) \u2013 Sept. 24, a use-after-free flaw in Portals.\n * [CVE-2021-37976 and CVE-2021-37975](<https://threatpost.com/google-emergency-update-chrome-zero-days/175266/>) \u2013 Sept. 30, an information leak in core and a use-after-free bug in V8, respectively.\n * [CVE-2021-38000](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38000>) and [CVE-2021-38003](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38003>) \u2013 Oct. 28, an issue with Insufficient validation of untrusted input in Intents in Google Chrome on Android, and an inappropriate implementation in V8 respectively.\n * [CVE-2021-4102](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4102>) \u2013 Dec. 13, a use after free in V8.\n\n**_Join Threatpost on Wed. Feb 23 at 2 PM ET for a [LIVE roundtable discussion](<https://threatpost.com/webinars/protect-sensitive-cloud-data/?utm_source=Website&utm_medium=Article&utm_id=Keeper+Webinar>) \u201cThe Secret to Keeping Secrets,\u201d sponsored by Keeper Security, focused on how to locate and lock down your organization\u2019s most sensitive data. Zane Bond with Keeper Security will join Threatpost\u2019s Becky Bracken to offer concrete steps to protect your organization\u2019s critical information in the cloud, in transit and in storage. [REGISTER NOW](<https://threatpost.com/webinars/protect-sensitive-cloud-data/?utm_source=Website&utm_medium=Article&utm_id=Keeper+Webinar>) and please Tweet us your questions ahead of time @Threatpost so they can be included in the discussion._**\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 10.0, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-02-15T18:33:28", "type": "threatpost", "title": "Chrome Zero-Day Under Active Attack: Patch ASAP", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-4102", "CVE-2021-44228", "CVE-2022-0609"], "modified": "2022-02-15T18:33:28", "id": "THREATPOST:3697F9293A6DFF6CD5927E9E68FF488A", "href": "https://threatpost.com/google-chrome-zero-day-under-attack/178428/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-07-15T11:25:30", "description": "Threat actors used a Safari zero-day flaw to send malicious links to government officials in Western Europe via LinkedIn before researchers from Google discovered and reported the vulnerability.\n\nThat\u2019s the word from researchers from Google Threat Analysis Group (TAG) and Google Project Zero, who Wednesday [posted a blog](<https://blog.google/threat-analysis-group/how-we-protect-users-0-day-attacks/>) shedding more light on several zero-day flaws that they discovered so far this year. Researchers in particular detailed how attackers exploited the vulnerabilities\u2014the prevalence of which are on the rise\u2013before they were addressed by their respective vendors.\n\nTAG researchers discovered the Safari WebKit flaw, tracked as [CVE-\u200b2021-1879](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1879>), on March 19. The vulnerability allowed for the processing of maliciously crafted web content for universal cross site scripting and was addressed by Apple in [an update](<https://support.apple.com/en-us/HT212256>) later that month.\n\n[![](https://media.threatpost.com/wp-content/uploads/sites/103/2019/02/19151457/subscribe2.jpg)](<https://threatpost.com/newsletter-sign/>)\n\nBefore the fix, researchers assert Russian-language threat actors were exploiting the vulnerability in the wild by using LinkedIn Messaging to send government officials from Western European countries malicious links that could collect website-authentication cookies, according to the post by Maddie Stone and Clement Lecigne from Google TAG.\n\n\u201cIf the target visited the link from an iOS device, they would be redirected to an attacker-controlled domain that served the next-stage payloads,\u201d they wrote.\n\nThe exploit, which targeted iOS versions 12.4 through 13.7, would turn off [Same-Origin-Policy](<https://en.wikipedia.org/wiki/Same-origin_policy>) protections on an infected device to collect authentication cookies from several popular websites\u2013including Google, Microsoft, LinkedIn, Facebook and Yahoo\u2013and then send them via WebSocket to an attacker-controlled IP, researchers wrote. The victim would need to have a session open on these websites from Safari for cookies to be successfully exfiltrated.\n\nMoreover, the campaign targeting iOS devices coincided with others from the same threat actor\u2014which Microsoft has identified as Nobelium\u2013targeting users on Windows devices to deliver Cobalt Strike, researchers wrote. Security firm Volexity described one of these attacks [in a report](<https://www.volexity.com/blog/2021/05/27/suspected-apt29-operation-launches-election-fraud-themed-phishing-campaigns/>) posted online in May, the researchers added.\n\nNobellium is believed to be a Russia-based threat group responsible for the [expansive cyber-espionage SolarWinds](<https://threatpost.com/feds-russia-culprit-solarwinds/162785/>) campaign, which affected numerous U.S. government agencies and tech companies, including Microsoft.\n\n## **Other Zero-Day Attacks**\n\nGoogle researchers also linked three additional zero-day flaws they identified this year to a commercial surveillance vendor, according to [Google TAG\u2019s Shane Huntley](<https://twitter.com/ShaneHuntley/status/1415340345500463113>). Two of those vulnerabilities\u2013[CVE-2021-21166](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21166>) and [CVE-2021-30551](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30551>)\u2014were found in Chrome, and one, tracked as [CVE-2021-33742](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33742>), in Internet Explorer.\n\nCVE-2021-21166 and CVE-2021-30551, two Chrome rendered remote-code execution (RCE) flaws, were identified separately but later believed to be used by the same actor, researchers wrote in the blog. Google researchers discovered the former in February and the latter in June.\n\n\u201cBoth of these 0-days were delivered as one-time links sent by email to the targets, all of whom we believe were in Armenia,\u201d Stone and Lecigne wrote. \u201cThe links led to attacker-controlled domains that mimicked legitimate websites related to the targeted users.\u201d\n\nWhen prospective victims clicked the link, they were redirected to a webpage that would fingerprint their device, collect system information about the client, and generate ECDH keys to encrypt the exploits, researchers wrote. This info\u2014which included screen resolution, timezone, languages, browser plugins, and available MIME types\u2014would then be sent back to the exploit server and used by attackers to decide whether or not an exploit should be delivered to the target, they said.\n\nResearchers also identified a separate campaigned in April that also targeted Armenian users by leveraging CVE-2021-26411, an RCE bug found in Internet Explorer (IE). The campaign loaded web content within IE that contained malicious Office documents, researchers wrote.\n\n\u201cThis happened by either embedding a remote ActiveX object using a Shell.Explorer.1 OLE object or by spawning an Internet Explorer process via VBA macros to navigate to a web page,\u201d Stone and Lecigne explained.\n\nAt the time, researchers said they were unable to recover the next-stage payload, but successfully recovered the exploit after discovering an early June campaign from the same actors. Microsoft patched the flaw later that month, they said.\n\n![Google Analysis of Zero-Day Bugs Shows Big Uptick in 2021 ](https://media.threatpost.com/wp-content/uploads/sites/103/2021/07/15065816/zero_day_fever_chart_google-300x170.png)\n\nClick to Zoom CREDIT: TAG\n\n## **Why There is an Increase in Zero-Days?**\n\nAll in all, security researchers have identified 33 [zero-day flaws](<https://threatpost.com/kaseya-patches-zero-days-revil-attacks/167670/>) so far in 2021, which is 11 more than the total number from 2020, according to the post.\n\nWhile that trend reflects an increase in the number of these types of vulnerabilities that exist, Google researchers \u201cbelieve greater detection and disclosure efforts are also contributing to the upward trend,\u201d they wrote.\n\nStill, it\u2019s highly possible that attackers are indeed using more [zero-day exploits](<https://threatpost.com/zero-day-wipe-my-book-live/167422/>) for a few reasons, researchers noted. One is that the increase and maturation of security technologies and features means attackers also have to level up, which in turn requires more [zero-day vulnerabilities](<https://threatpost.com/solarwinds-hotfix-zero-day-active-attack/167704/>) for functional attack chains, they said.\n\nThe growth of mobile platforms also has resulted in an increase in the number of products that threat actors want to target\u2014hence more reason to use zero-day exploits, researchers observed. Perhaps inspired by this increase in demand, commercial vendors also are selling more access to zero-days than in the early 2010s, they said.\n\nFinally, the maturation of security protections and strategies also inspires sophistication on the part of attackers as well, boosting the need for them to use zero-day flaws to convince victims to install malware, researchers noted.\n\n\u201cDue to advancements in security, these actors now more often have to use 0-day exploits to accomplish their goals,\u201d Stone and Lecigne wrote.\n\n_**Check out our free **_[_**upcoming live and on-demand webinar events**_](<https://threatpost.com/category/webinars/>)_** \u2013 unique, dynamic discussions with cybersecurity experts and the Threatpost community.**_\n", "cvss3": {}, "published": "2021-07-15T11:04:49", "type": "threatpost", "title": "Safari Zero-Day Used in Malicious LinkedIn Campaign", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2021-1879", "CVE-2021-21166", "CVE-2021-26411", "CVE-2021-30551", "CVE-2021-33742"], "modified": "2021-07-15T11:04:49", "id": "THREATPOST:EA23582BD77C428ACE9B9DB7D5741EB6", "href": "https://threatpost.com/safari-zero-day-linkedin/167814/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-03-04T21:58:01", "description": "Google has fixed a high-severity vulnerability in its Chrome browser and is warning Chrome users that an exploit exists in the wild for the flaw.\n\nThe vulnerability is one of 47 security fixes that the tech giant rolled out on Tuesday in Chrome 89.0.4389.72, including patches for eight high-severity flaws.\n\n[![](https://media.threatpost.com/wp-content/uploads/sites/103/2019/02/19151457/subscribe2.jpg)](<https://threatpost.com/newsletter-sign/>)\n\n\u201cThe Chrome team is delighted to announce the promotion of Chrome 89 to the stable channel for Windows, Mac and Linux,\u201d according to Google [on Tuesday](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html>). \u201cThis will roll out over the coming days/weeks.\u201d\n\n## Google Chrome: Actively-Exploited Security Flaw\n\nThe actively-exploited vulnerability in question (CVE-2021-21166) stems from the audio component of the browser (which [has previously been found](<https://threatpost.com/google-discloses-chrome-flaw-exploited-in-the-wild/149784/>) to have various security issues in the past). According to Google, the flaw stems from an object lifecycle issue. The object lifecycle is the duration in which a programming language object is valid for use \u2013 between the time it is created and destroyed.\n\nBeyond Google noting that it \u201cis aware of reports that an exploit for CVE-2021-21166 exists in the wild,\u201d further information about the glitch is unavailable. That\u2019s because \u201caccess to bug details and links may be kept restricted until a majority of users are updated with a fix,\u201d according to Google.\n\nThe flaw was reported by Alison Huffman, with the Microsoft Browser Vulnerability Research team, on Feb. 11. Huffman reported another high-severity flaw that Google fixed in Chrome, which also stemmed from an object lifecycle issue in the audio component (CVE-2021-21165).\n\n## Other Chrome Security High-Severity Flaws\n\nDetails around the other high-severity vulnerabilities patched by Google in Chrome remain scant. However, Google said that it fixed three heap-buffer overflow flaws in the TabStrip (CVE-2021-21159, CVE-2021-21161) and WebAudio (CVE-2021-21160) components. A high-severity use-after-free error (CVE-2021-21162) was found in WebRTC.\n\nTwo other high-severity flaws include an insufficient data validation issue in Reader Mode (CVE-2021-21163) and an insufficient data validation issue in Chrome for iOS (CVE-2021-21164).\n\n## **Google Chrome Security Updates**\n\nChrome will in many cases update to its newest version automatically, however security experts suggest that users double check that this has happened. To check if an update is available:\n\n * Google Chrome users can go to chrome://settings/help by clicking Settings > About Chrome\n * If an update is available Chrome will notify users and then start the download process\n * Users can then relaunch the browser to complete the update\n\nThe fixes come after Google in February [warned of a zero-day vulnerability](<https://threatpost.com/google-chrome-zero-day-windows-mac/163688/>) in its V8 open-source web engine that\u2019s being actively exploited by attackers. In January, the Cybersecurity and Infrastructure Security Agency (CISA) [urged Windows, macOS and Linux users](<https://threatpost.com/firefox-chrome-edge-bugs-system-hijacking/162873/>) of Google\u2019s Chrome browser to patch an out-of-bounds write bug (CVE-2020-15995) impacting the current 87.0.4280.141 version of the software.\n\nAnd in December, Google updated Chrome to fix four bugs with a severity rating of \u201chigh\u201d and eight overall. [Three were use-after-free flaws](<https://threatpost.com/google_chrome_bugs_patched/161907/>), which could allow an adversary to generate an error in the browser\u2019s memory, opening the door to a browser hack and host computer compromise.\n", "cvss3": {}, "published": "2021-03-03T21:17:14", "type": "threatpost", "title": "Google Patches Actively Exploited Flaw in Chrome Browser", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2020-15995", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166"], "modified": "2021-03-03T21:17:14", "id": "THREATPOST:A8D4979B3A84B8E7B98B5321FA948454", "href": "https://threatpost.com/google-patches-actively-exploited-flaw-in-chrome-browser/164468/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-03-30T16:18:23", "description": "Google has updated its Stable channel for the desktop version of Chrome, to address a zero-day security vulnerability that\u2019s being actively exploited in the wild.\n\nThe bug, tracked as CVE-2022-1096, is a type-confusion issue in the V8 JavaScript engine, which is an open-source engine used by Chrome and Chromium-based web browsers. Type confusion, as Microsoft has [laid out](<https://www.microsoft.com/security/blog/2015/06/17/understanding-type-confusion-vulnerabilities-cve-2015-0336/>) in the past, occurs \u201cwhen a piece of code doesn\u2019t verify the type of object that is passed to it, and uses it blindly without type-checking, it leads to type confusion\u2026Also with type confusion, wrong function pointers or data are fed into the wrong piece of code. In some circumstances this can lead to code execution.\u201d\n\nGoogle didn\u2019t provide additional technical details, as is its wont, but did say that it was \u201caware that an exploit for CVE-2022-1096 exists in the wild.\u201d An anonymous researcher was credited with finding the issue, which is labeled \u201chigh-severity\u201d (no CVSS score was given).\n\nThe lack of any further information is a source of frustration to some.\n\n\u201cAs a defender, I really wish it was more clear what this security fix is,\u201d John Bambenek, principal threat hunter at Netenrich, said via email. \u201cI get permission-denied errors or \u2018need to authenticate,\u2019 so I can\u2019t make decisions or advise my clients. A little more transparency would be beneficial and appreciated.\u201d\n\n## **Emergency Patch; Active Exploit**\n\nThe internet giant has updated the Stable channel to 99.0.4844.84 for Chrome for Windows, Mac and Linux, according to the its [security advisory](<https://chromereleases.googleblog.com/2022/03/stable-channel-update-for-desktop_25.html>). Microsoft, which offers the Chromium-based Edge browser, also issued its [own advisory](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-1096>). It\u2019s unclear whether other offerings built in V8, such as the JavaScript runtime environment Node.js, are also affected.\n\nThe patch was issued on an emergency basis, likely due to the active exploit that\u2019s circulating, researchers noted.\n\n\u201cThe first thing which stood out to me about this update is that it only fixes a single issue,\u201d Casey Ellis, founder and CTO at Bugcrowd, noted by email. \u201cThis is pretty unusual for Google. They typically fix multiple issues in these types of releases, which suggests that they are quite concerned and very motivated to see fixes against CVE-2022-1096 applied across their user-base ASAP.\u201d\n\nHe also commented on the speed of the patch being rolled out.\n\n\u201cThe vulnerability was only reported on the 23rd of March, and while Google\u2019s Chrome team do tend to be fairly prompt in developing, testing and rolling patches, the idea of a patch for software deployed as widely deployed as Chrome in 48 hours is something is continue to be impressed by,\u201d he said. \u201cSpeculatively, I\u2019d suggest that the vulnerability has been discovered via detection of active exploitation in the wild, and the combination of impact and potentially the malicious actors currently using it contributed to the fast turnaround.\u201d\n\n## **V8 Engine in the Crosshairs**\n\nThe V8 engine has been plagued with security bugs and targeted by cyberattackers many times in the last year:\n\nLast year delivered a total of these 16 Chrome zero days:\n\n * [CVE-2021-21148](<https://threatpost.com/google-chrome-zero-day-windows-mac/163688/>) \u2013 Feb. 4, an unnamed type of bug in V8\n * [CVE-2021-21224](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21224>) \u2013 April 20, an issue with type confusion in V8 that could have allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.\n * [CVE-2021-30551](<https://threatpost.com/chrome-browser-bug-under-attack/166804/>) \u2013- June 9, a type-confusion bug within V8 (also under active attack as a zero-day)\n * [CVE-2021-30563](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30563>) \u2013 July 15, another type-confusion bug in V8.\n * [CVE-2021-30633](<https://threatpost.com/google-chrome-zero-day-exploited/169442/>) \u2013 Sept. 13, an out-of-bounds write in V8\n * [CVE-2021-37975](<https://threatpost.com/google-emergency-update-chrome-zero-days/175266/>) \u2013 Sept. 30, a use-after-free bug in V8 (also attacked as a zero-day)\n * [CVE-2021-38003](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38003>) \u2013 Oct. 28, an inappropriate implementation in V8\n * [CVE-2021-4102](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-4102>) \u2013 Dec. 13, a use-after-free bug in V8.\n\n_**Moving to the cloud? Discover emerging cloud-security threats along with solid advice for how to defend your assets with our **_[_**FREE downloadable eBook**_](<https://bit.ly/3Jy6Bfs>)_**, \u201cCloud Security: The Forecast for 2022.\u201d**_ _**We explore organizations\u2019 top risks and challenges, best practices for defense, and advice for security success in such a dynamic computing environment, including handy checklists.**_\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 10.0, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2022-03-30T16:14:30", "type": "threatpost", "title": "Google Chrome Bug Actively Exploited as Zero-Day", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2015-0336", "CVE-2021-21148", "CVE-2021-21224", "CVE-2021-30551", "CVE-2021-30563", "CVE-2021-30633", "CVE-2021-37975", "CVE-2021-38003", "CVE-2021-4102", "CVE-2021-44228", "CVE-2022-1096"], "modified": "2022-03-30T16:14:30", "id": "THREATPOST:45B63C766965F5748AEC30DE709C8003", "href": "https://threatpost.com/google-chrome-bug-actively-exploited-zero-day/179161/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "checkpoint_advisories": [{"lastseen": "2022-02-16T19:32:23", "description": "A heap corruption vulnerability exists in Google Chrome. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-07-26T00:00:00", "type": "checkpoint_advisories", "title": "Google Chrome Heap Corruption (CVE-2021-21166)", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21166"], "modified": "2021-07-26T00:00:00", "id": "CPAI-2021-0482", "href": "", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "fedora": [{"lastseen": "2021-07-28T14:46:52", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-07T15:26:44", "type": "fedora", "title": "[SECURITY] Fedora 32 Update: chromium-89.0.4389.90-3.fc32", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-04-07T15:26:44", "id": "FEDORA:807E83072E26", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:46:52", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-10T01:20:58", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: chromium-88.0.4324.150-1.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148"], "modified": "2021-02-10T01:20:58", "id": "FEDORA:BB03930B3A56", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/AUQSMNV7INLDDSD3RKI5S5EAULX2QC7P/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:46:52", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-17T05:09:44", "type": "fedora", "title": "[SECURITY] Fedora 32 Update: chromium-88.0.4324.150-1.fc32", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148"], "modified": "2021-02-17T05:09:44", "id": "FEDORA:4E16930B130B", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/7ACWYJ74Z3YN2XH4QMUEGNBC3VXX464L/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:46:52", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-01T01:51:39", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: chromium-89.0.4389.90-3.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-04-01T01:51:39", "id": "FEDORA:C67773052A4D", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:46:52", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-05T00:18:43", "type": "fedora", "title": "[SECURITY] Fedora 34 Update: chromium-89.0.4389.90-3.fc34", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-04-05T00:18:43", "id": "FEDORA:BF4FC30A0346", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T18:41:39", "description": "Chromium is an open-source web browser, powered by WebKit (Blink). ", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-03-20T01:15:37", "type": "fedora", "title": "[SECURITY] Fedora 32 Update: chromium-89.0.4389.82-1.fc32", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190"], "modified": "2021-03-20T01:15:37", "id": "FEDORA:A017F3074280", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "archlinux": [{"lastseen": "2021-07-28T14:33:55", "description": "Arch Linux Security Advisory ASA-202103-9\n=========================================\n\nSeverity: High\nDate : 2021-03-13\nCVE-ID : CVE-2021-21191 CVE-2021-21192 CVE-2021-21193\nPackage : chromium\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-1683\n\nSummary\n=======\n\nThe package chromium before version 89.0.4389.90-1 is vulnerable to\narbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 89.0.4389.90-1.\n\n# pacman -Syu \"chromium>=89.0.4389.90-1\"\n\nThe problems have been fixed upstream in version 89.0.4389.90.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\n- CVE-2021-21191 (arbitrary code execution)\n\nA use after free security issue was found in the WebRTC component of\nthe Chromium browser before version 89.0.4389.90.\n\n- CVE-2021-21192 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the tab groups\ncomponent of the Chromium browser before version 89.0.4389.90.\n\n- CVE-2021-21193 (arbitrary code execution)\n\nA use after free security issue was found in the Blink component of the\nChromium browser before version 89.0.4389.90. Google is aware of\nreports that an exploit for this issue exists in the wild.\n\nImpact\n======\n\nA remote attacker can execute arbitrary code on the affected host.\nGoogle is aware of reports that an exploit for CVE-2021-21193 exists in\nthe wild.\n\nReferences\n==========\n\nhttps://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html\nhttps://crbug.com/1167357\nhttps://crbug.com/1181387\nhttps://crbug.com/1186287\nhttps://security.archlinux.org/CVE-2021-21191\nhttps://security.archlinux.org/CVE-2021-21192\nhttps://security.archlinux.org/CVE-2021-21193", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-13T00:00:00", "type": "archlinux", "title": "[ASA-202103-9] chromium: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-13T00:00:00", "id": "ASA-202103-9", "href": "https://security.archlinux.org/ASA-202103-9", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:33:55", "description": "Arch Linux Security Advisory ASA-202102-6\n=========================================\n\nSeverity: Critical\nDate : 2021-02-06\nCVE-ID : CVE-2021-21142 CVE-2021-21143 CVE-2021-21144 CVE-2021-21145\nCVE-2021-21146 CVE-2021-21147 CVE-2021-21148\nPackage : chromium\nType : multiple issues\nRemote : Yes\nLink : https://security.archlinux.org/AVG-1525\n\nSummary\n=======\n\nThe package chromium before version 88.0.4324.150-1 is vulnerable to\nmultiple issues including arbitrary code execution and incorrect\ncalculation.\n\nResolution\n==========\n\nUpgrade to 88.0.4324.150-1.\n\n# pacman -Syu \"chromium>=88.0.4324.150-1\"\n\nThe problems have been fixed upstream in version 88.0.4324.150.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\n- CVE-2021-21142 (arbitrary code execution)\n\nA use after free security issue was found in the Payments component of\nthe Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21143 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the Extensions\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21144 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the Tab Groups\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21145 (arbitrary code execution)\n\nA use after free security issue was found in the Fonts component of the\nChromium browser before version 88.0.4324.146.\n\n- CVE-2021-21146 (arbitrary code execution)\n\nA use after free security issue was found in the Navigation component\nof the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21147 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the Skia\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21148 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the V8 component of\nthe Chromium browser before version 88.0.4324.150.\n\nImpact\n======\n\nA remote attacker might be able to bypass security measures or execute\narbitrary code.\n\nReferences\n==========\n\nhttps://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html\nhttps://crbug.com/1169317\nhttps://crbug.com/1163504\nhttps://crbug.com/1163845\nhttps://crbug.com/1154965\nhttps://crbug.com/1161705\nhttps://crbug.com/1162942\nhttps://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html\nhttps://crbug.com/1170176\nhttps://security.archlinux.org/CVE-2021-21142\nhttps://security.archlinux.org/CVE-2021-21143\nhttps://security.archlinux.org/CVE-2021-21144\nhttps://security.archlinux.org/CVE-2021-21145\nhttps://security.archlinux.org/CVE-2021-21146\nhttps://security.archlinux.org/CVE-2021-21147\nhttps://security.archlinux.org/CVE-2021-21148", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-06T00:00:00", "type": "archlinux", "title": "[ASA-202102-6] chromium: multiple issues", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148"], "modified": "2021-02-06T00:00:00", "id": "ASA-202102-6", "href": "https://security.archlinux.org/ASA-202102-6", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T16:33:56", "description": "Arch Linux Security Advisory ASA-202103-19\n==========================================\n\nSeverity: High\nDate : 2021-03-25\nCVE-ID : CVE-2020-27844 CVE-2021-21159 CVE-2021-21160 CVE-2021-21161\nCVE-2021-21162 CVE-2021-21163 CVE-2021-21165 CVE-2021-21166\nCVE-2021-21167 CVE-2021-21168 CVE-2021-21169 CVE-2021-21170\nCVE-2021-21171 CVE-2021-21172 CVE-2021-21173 CVE-2021-21174\nCVE-2021-21175 CVE-2021-21176 CVE-2021-21177 CVE-2021-21178\nCVE-2021-21179 CVE-2021-21180 CVE-2021-21181 CVE-2021-21182\nCVE-2021-21183 CVE-2021-21184 CVE-2021-21185 CVE-2021-21186\nCVE-2021-21187 CVE-2021-21188 CVE-2021-21189 CVE-2021-21190\nCVE-2021-21191 CVE-2021-21192 CVE-2021-21193\nPackage : vivaldi\nType : multiple issues\nRemote : Yes\nLink : https://security.archlinux.org/AVG-1633\n\nSummary\n=======\n\nThe package vivaldi before version 3.7.2218.45-1 is vulnerable to\nmultiple issues including arbitrary code execution, insufficient\nvalidation, access restriction bypass, content spoofing, incorrect\ncalculation and information disclosure.\n\nResolution\n==========\n\nUpgrade to 3.7.2218.45-1.\n\n# pacman -Syu \"vivaldi>=3.7.2218.45-1\"\n\nThe problems have been fixed upstream in version 3.7.2218.45.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\n- CVE-2020-27844 (arbitrary code execution)\n\nA heap-based buffer overflow was discovered in lib/openjp2/t2.c:973 in\nthe current master (commit 18b1138fbe3bb0ae4aa2bf1369f9430a8ec6fa00) of\nOpenJPEG.\n\n- CVE-2021-21159 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the TabStrip\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21160 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the WebAudio\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21161 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the TabStrip\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21162 (arbitrary code execution)\n\nA use after free security issue was found in the WebRTC component of\nthe Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21163 (insufficient validation)\n\nAn insufficient data validation security issue was found in the Reader\nMode component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21165 (arbitrary code execution)\n\nAn object lifecycle security issue was found in the audio component of\nthe Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21166 (arbitrary code execution)\n\nAn object lifecycle security issue was found in the audio component of\nthe Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21167 (arbitrary code execution)\n\nA use after free security issue was found in the bookmarks component of\nthe Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21168 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the\nappcache component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21169 (information disclosure)\n\nAn out of bounds memory access security issue was found in the V8\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21170 (content spoofing)\n\nAn incorrect security UI security issue was found in the Loader\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21171 (content spoofing)\n\nAn incorrect security UI security issue was found in the TabStrip and\nNavigation components of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21172 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21173 (information disclosure)\n\nA side-channel information leakage security issue was found in the\nNetwork Internals component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21174 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nReferrer component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21175 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the Site\nisolation component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21176 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the full\nscreen mode component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21177 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the\nAutofill component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21178 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nCompositing component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21179 (arbitrary code execution)\n\nA use after free security issue was found in the Network Internals\ncomponent of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21180 (arbitrary code execution)\n\nA use after free security issue was found in the tab search component\nof the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21181 (information disclosure)\n\nA side-channel information leakage security issue was found in the\nautofill component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21182 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the\nnavigations component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21183 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nperformance APIs component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21184 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nperformance APIs component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21185 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the\nextensions component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21186 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the QR\nscanning component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21187 (insufficient validation)\n\nAn insufficient data validation security issue was found in the URL\nformatting component of the Chromium browser before version\n89.0.4389.72.\n\n- CVE-2021-21188 (arbitrary code execution)\n\nA use after free security issue was found in the Blink component of the\nChromium browser before version 89.0.4389.72.\n\n- CVE-2021-21189 (access restriction bypass)\n\nAn insufficient policy enforcement security issue was found in the\npayments component of the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21190 (arbitrary code execution)\n\nAn uninitialized use security issue was found in the PDFium component\nof the Chromium browser before version 89.0.4389.72.\n\n- CVE-2021-21191 (arbitrary code execution)\n\nA use after free security issue was found in the WebRTC component of\nthe Chromium browser before version 89.0.4389.90.\n\n- CVE-2021-21192 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the tab groups\ncomponent of the Chromium browser before version 89.0.4389.90.\n\n- CVE-2021-21193 (arbitrary code execution)\n\nA use after free security issue was found in the Blink component of the\nChromium browser before version 89.0.4389.90. Google is aware of\nreports that an exploit for this issue exists in the wild.\n\nImpact\n======\n\nA remote attacker might be able to bypass security measures, trick the\nuser into performing unwanted actions or execute arbitrary code.\n\nReferences\n==========\n\nhttps://vivaldi.com/blog/desktop/minor-update-2-for-vivaldi-desktop-3-6/\nhttps://vivaldi.com/blog/vivaldi-fires-up-performance-2/\nhttps://github.com/uclouvain/openjpeg/issues/1299\nhttps://github.com/uclouvain/openjpeg/pull/1301\nhttps://github.com/uclouvain/openjpeg/commit/73fdf28342e4594019af26eb6a347a34eceb6296\nhttps://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html\nhttps://crbug.com/1171049\nhttps://crbug.com/1170531\nhttps://crbug.com/1173702\nhttps://crbug.com/1172054\nhttps://crbug.com/1111239\nhttps://crbug.com/1174582\nhttps://crbug.com/1177465\nhttps://crbug.com/1161144\nhttps://crbug.com/1152226\nhttps://crbug.com/1166138\nhttps://crbug.com/1111646\nhttps://crbug.com/1152894\nhttps://crbug.com/1150810\nhttps://crbug.com/1154250\nhttps://crbug.com/1158010\nhttps://crbug.com/1146651\nhttps://crbug.com/1170584\nhttps://crbug.com/1173879\nhttps://crbug.com/1174186\nhttps://crbug.com/1174943\nhttps://crbug.com/1175507\nhttps://crbug.com/1182767\nhttps://crbug.com/1049265\nhttps://crbug.com/1105875\nhttps://crbug.com/1131929\nhttps://crbug.com/1100748\nhttps://crbug.com/1153445\nhttps://crbug.com/1155516\nhttps://crbug.com/1161739\nhttps://crbug.com/1165392\nhttps://crbug.com/1166091\nhttps://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html\nhttps://crbug.com/1167357\nhttps://crbug.com/1181387\nhttps://crbug.com/1186287\nhttps://security.archlinux.org/CVE-2020-27844\nhttps://security.archlinux.org/CVE-2021-21159\nhttps://security.archlinux.org/CVE-2021-21160\nhttps://security.archlinux.org/CVE-2021-21161\nhttps://security.archlinux.org/CVE-2021-21162\nhttps://security.archlinux.org/CVE-2021-21163\nhttps://security.archlinux.org/CVE-2021-21165\nhttps://security.archlinux.org/CVE-2021-21166\nhttps://security.archlinux.org/CVE-2021-21167\nhttps://security.archlinux.org/CVE-2021-21168\nhttps://security.archlinux.org/CVE-2021-21169\nhttps://security.archlinux.org/CVE-2021-21170\nhttps://security.archlinux.org/CVE-2021-21171\nhttps://security.archlinux.org/CVE-2021-21172\nhttps://security.archlinux.org/CVE-2021-21173\nhttps://security.archlinux.org/CVE-2021-21174\nhttps://security.archlinux.org/CVE-2021-21175\nhttps://security.archlinux.org/CVE-2021-21176\nhttps://security.archlinux.org/CVE-2021-21177\nhttps://security.archlinux.org/CVE-2021-21178\nhttps://security.archlinux.org/CVE-2021-21179\nhttps://security.archlinux.org/CVE-2021-21180\nhttps://security.archlinux.org/CVE-2021-21181\nhttps://security.archlinux.org/CVE-2021-21182\nhttps://security.archlinux.org/CVE-2021-21183\nhttps://security.archlinux.org/CVE-2021-21184\nhttps://security.archlinux.org/CVE-2021-21185\nhttps://security.archlinux.org/CVE-2021-21186\nhttps://security.archlinux.org/CVE-2021-21187\nhttps://security.archlinux.org/CVE-2021-21188\nhttps://security.archlinux.org/CVE-2021-21189\nhttps://security.archlinux.org/CVE-2021-21190\nhttps://security.archlinux.org/CVE-2021-21191\nhttps://security.archlinux.org/CVE-2021-21192\nhttps://security.archlinux.org/CVE-2021-21193", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-03-25T00:00:00", "type": "archlinux", "title": "[ASA-202103-19] vivaldi: multiple issues", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 8.5, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-25T00:00:00", "id": "ASA-202103-19", "href": "https://security.archlinux.org/ASA-202103-19", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}, {"lastseen": "2021-07-28T16:33:56", "description": "Arch Linux Security Advisory ASA-202102-4\n=========================================\n\nSeverity: Critical\nDate : 2021-02-06\nCVE-ID : CVE-2020-16044 CVE-2021-21117 CVE-2021-21118 CVE-2021-21119\nCVE-2021-21120 CVE-2021-21121 CVE-2021-21122 CVE-2021-21123\nCVE-2021-21124 CVE-2021-21125 CVE-2021-21126 CVE-2021-21127\nCVE-2021-21128 CVE-2021-21129 CVE-2021-21130 CVE-2021-21131\nCVE-2021-21132 CVE-2021-21133 CVE-2021-21134 CVE-2021-21135\nCVE-2021-21136 CVE-2021-21137 CVE-2021-21138 CVE-2021-21139\nCVE-2021-21140 CVE-2021-21141 CVE-2021-21142 CVE-2021-21143\nCVE-2021-21144 CVE-2021-21145 CVE-2021-21146 CVE-2021-21147\nCVE-2021-21148\nPackage : vivaldi\nType : multiple issues\nRemote : Yes\nLink : https://security.archlinux.org/AVG-1478\n\nSummary\n=======\n\nThe package vivaldi before version 3.6.2165.36-1 is vulnerable to\nmultiple issues including arbitrary code execution, insufficient\nvalidation, content spoofing and incorrect calculation.\n\nResolution\n==========\n\nUpgrade to 3.6.2165.36-1.\n\n# pacman -Syu \"vivaldi>=3.6.2165.36-1\"\n\nThe problems have been fixed upstream in version 3.6.2165.36.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\n- CVE-2020-16044 (arbitrary code execution)\n\nA security issue was found in Firefox before 84.0.2, Thunderbird before\n78.6.1 and Chromium before 88.0.4324.96. A malicious peer could have\nmodified a COOKIE-ECHO chunk in an SCTP packet in a way that\npotentially resulted in a use-after-free. Mozilla presumes that with\nenough effort it could have been exploited to run arbitrary code.\n\n- CVE-2021-21117 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the\nCryptohome component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21118 (insufficient validation)\n\nAn insufficient data validation security issue was found in the V8\ncomponent of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21119 (arbitrary code execution)\n\nA use after free security issue was found in the Media component of the\nChromium browser before version 88.0.4324.96.\n\n- CVE-2021-21120 (arbitrary code execution)\n\nA use after free security issue was found in the WebSQL component of\nthe Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21121 (arbitrary code execution)\n\nA use after free security issue was found in the Omnibox component of\nthe Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21122 (arbitrary code execution)\n\nA use after free security issue was found in the Blink component of the\nChromium browser before version 88.0.4324.96.\n\n- CVE-2021-21123 (insufficient validation)\n\nAn insufficient data validation security issue was found in the File\nSystem component of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21124 (arbitrary code execution)\n\nA potential use after free security issue was found in the Speech\nRecognizer component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21125 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21126 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the\nextensions component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21127 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the\nextensions component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21128 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the Blink component\nof the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21129 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21130 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21131 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21132 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nDevTools component of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21133 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the\nDownloads component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21134 (content spoofing)\n\nAn incorrect security UI security issue was found in the Page Info\ncomponent of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21135 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nPerformance API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21136 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the\nWebView component of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21137 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the\nDevTools component of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21138 (arbitrary code execution)\n\nA use after free security issue was found in the DevTools component of\nthe Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21139 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the iframe\nsandbox component of the Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21140 (arbitrary code execution)\n\nAn uninitialized use security issue was found in the USB component of\nthe Chromium browser before version 88.0.4324.96.\n\n- CVE-2021-21141 (insufficient validation)\n\nAn insufficient policy enforcement security issue was found in the File\nSystem API component of the Chromium browser before version\n88.0.4324.96.\n\n- CVE-2021-21142 (arbitrary code execution)\n\nA use after free security issue was found in the Payments component of\nthe Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21143 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the Extensions\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21144 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the Tab Groups\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21145 (arbitrary code execution)\n\nA use after free security issue was found in the Fonts component of the\nChromium browser before version 88.0.4324.146.\n\n- CVE-2021-21146 (arbitrary code execution)\n\nA use after free security issue was found in the Navigation component\nof the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21147 (incorrect calculation)\n\nAn inappropriate implementation security issue was found in the Skia\ncomponent of the Chromium browser before version 88.0.4324.146.\n\n- CVE-2021-21148 (arbitrary code execution)\n\nA heap buffer overflow security issue was found in the V8 component of\nthe Chromium browser before version 88.0.4324.150.\n\nImpact\n======\n\nA remote attacker might be able to bypass security measures, trick the\nuser into performing unwanted actions or execute arbitrary code.\n\nReferences\n==========\n\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2021-01/#CVE-2020-16044\nhttps://bugzilla.mozilla.org/show_bug.cgi?id=1683964\nhttps://hg.mozilla.org/mozilla-central/rev/08ba03dc8d4420e04e7c77fee3013e68180e6ead\nhttps://hg.mozilla.org/mozilla-central/rev/8c09f4813fc7e8f44605b6092262199bff15cdd7\nhttps://hg.mozilla.org/mozilla-central/rev/5991645a87d2abf289686d09d943229c9e3e54b5\nhttps://chromereleases.googleblog.com/2021/01/stable-channel-update-for-desktop_19.html\nhttps://crbug.com/1137179\nhttps://crbug.com/1161357\nhttps://crbug.com/1160534\nhttps://crbug.com/1160602\nhttps://crbug.com/1161143\nhttps://crbug.com/1162131\nhttps://crbug.com/1137247\nhttps://crbug.com/1131346\nhttps://crbug.com/1152327\nhttps://crbug.com/1108126\nhttps://crbug.com/1115590\nhttps://crbug.com/1138877\nhttps://crbug.com/1140403\nhttps://crbug.com/1140410\nhttps://crbug.com/1140417\nhttps://crbug.com/1128206\nhttps://crbug.com/1157743\nhttps://crbug.com/1157800\nhttps://crbug.com/1157818\nhttps://crbug.com/1038002\nhttps://crbug.com/1093791\nhttps://crbug.com/1122487\nhttps://crbug.com/937131\nhttps://crbug.com/1136327\nhttps://crbug.com/1140435\nhttps://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop.html\nhttps://crbug.com/1169317\nhttps://crbug.com/1163504\nhttps://crbug.com/1163845\nhttps://crbug.com/1154965\nhttps://crbug.com/1161705\nhttps://crbug.com/1162942\nhttps://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html\nhttps://crbug.com/1170176\nhttps://security.archlinux.org/CVE-2020-16044\nhttps://security.archlinux.org/CVE-2021-21117\nhttps://security.archlinux.org/CVE-2021-21118\nhttps://security.archlinux.org/CVE-2021-21119\nhttps://security.archlinux.org/CVE-2021-21120\nhttps://security.archlinux.org/CVE-2021-21121\nhttps://security.archlinux.org/CVE-2021-21122\nhttps://security.archlinux.org/CVE-2021-21123\nhttps://security.archlinux.org/CVE-2021-21124\nhttps://security.archlinux.org/CVE-2021-21125\nhttps://security.archlinux.org/CVE-2021-21126\nhttps://security.archlinux.org/CVE-2021-21127\nhttps://security.archlinux.org/CVE-2021-21128\nhttps://security.archlinux.org/CVE-2021-21129\nhttps://security.archlinux.org/CVE-2021-21130\nhttps://security.archlinux.org/CVE-2021-21131\nhttps://security.archlinux.org/CVE-2021-21132\nhttps://security.archlinux.org/CVE-2021-21133\nhttps://security.archlinux.org/CVE-2021-21134\nhttps://security.archlinux.org/CVE-2021-21135\nhttps://security.archlinux.org/CVE-2021-21136\nhttps://security.archlinux.org/CVE-2021-21137\nhttps://security.archlinux.org/CVE-2021-21138\nhttps://security.archlinux.org/CVE-2021-21139\nhttps://security.archlinux.org/CVE-2021-21140\nhttps://security.archlinux.org/CVE-2021-21141\nhttps://security.archlinux.org/CVE-2021-21142\nhttps://security.archlinux.org/CVE-2021-21143\nhttps://security.archlinux.org/CVE-2021-21144\nhttps://security.archlinux.org/CVE-2021-21145\nhttps://security.archlinux.org/CVE-2021-21146\nhttps://security.archlinux.org/CVE-2021-21147\nhttps://security.archlinux.org/CVE-2021-21148", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-06T00:00:00", "type": "archlinux", "title": "[ASA-202102-4] vivaldi: multiple issues", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 3.4, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 6.9, "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-16044", "CVE-2021-21117", "CVE-2021-21118", "CVE-2021-21119", "CVE-2021-21120", "CVE-2021-21121", "CVE-2021-21122", "CVE-2021-21123", "CVE-2021-21124", "CVE-2021-21125", "CVE-2021-21126", "CVE-2021-21127", "CVE-2021-21128", "CVE-2021-21129", "CVE-2021-21130", "CVE-2021-21131", "CVE-2021-21132", "CVE-2021-21133", "CVE-2021-21134", "CVE-2021-21135", "CVE-2021-21136", "CVE-2021-21137", "CVE-2021-21138", "CVE-2021-21139", "CVE-2021-21140", "CVE-2021-21141", "CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148"], "modified": "2021-02-06T00:00:00", "id": "ASA-202102-4", "href": "https://security.archlinux.org/ASA-202102-4", "cvss": {"score": 6.9, "vector": "AV:L/AC:M/Au:N/C:C/I:C/A:C"}}], "githubexploit": [{"lastseen": "2022-03-28T14:32:47", "description": "# CVE-2021-21193\n\n - **Introduction to Hacking**\n\n - **Vulnerab...", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2022-03-28T03:51:58", "type": "githubexploit", "title": "Exploit for Use After Free in Google Chrome", "bulletinFamily": "exploit", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-211193", "CVE-2021-21188", "CVE-2021-21193"], "modified": "2022-03-28T03:51:58", "id": "6432789A-FC4C-597F-925F-5764319F257F", "href": "", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}, "privateArea": 1}], "krebs": [{"lastseen": "2021-02-10T00:29:38", "description": "**Microsoft** today rolled out updates to plug at least 56 security holes in its **Windows** operating systems and other software. One of the bugs is already being actively exploited, and six of them were publicized prior to today, potentially giving attackers a head start in figuring out how to exploit the flaws.\n\n![](https://krebsonsecurity.com/wp-content/uploads/2020/08/windowsec.png)\n\nNine of the 56 vulnerabilities earned Microsoft's most urgent "critical" rating, meaning malware or miscreants could use them to seize remote control over unpatched systems with little or no help from users.\n\nThe flaw being exploited in the wild already -- [CVE-2021-1732](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-1732>) -- affects Windows 10, Server 2016 and later editions. It received a slightly less dire "important" rating and mainly because it is a vulnerability that lets an attacker increase their authority and control on a device, which means the attacker needs to already have access to the target system.\n\nTwo of the other bugs that were disclosed prior to this week are critical and reside in **Microsoft's .NET Framework**, a component required by many third-party applications (most Windows users will have some version of .NET installed).\n\nWindows 10 users should note that while the operating system installs all monthly patch roll-ups in one go, that rollup does not typically include .NET updates, which are installed on their own. So when you've backed up your system and installed this month's patches, you may want to check Windows Update again to see if there are any .NET updates pending.\n\nA key concern for enterprises is another critical bug in the DNS server on Windows Server 2008 through 2019 versions that could be used to remotely install software of the attacker's choice. [CVE-2021-24078](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24078>) earned [a CVSS Score](<https://nvd.nist.gov/vuln-metrics/cvss>) of 9.8, which is about as dangerous as they come.\n\n**Recorded Future** says this vulnerability can be exploited remotely by getting a vulnerable DNS server to query for a domain it has not seen before (e.g. by sending a phishing email with a link to a new domain or even with images embedded that call out to a new domain). **Kevin Breen** of **Immersive Labs** notes that CVE-2021-24078 could let an attacker steal loads of data by altering the destination for an organization's web traffic -- such as pointing internal appliances or Outlook email access at a malicious server.\n\nWindows Server users also should be aware that Microsoft this month is enforcing the second round of security improvements as part of a two-phase update to address [CVE-2020-1472](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2020-1472>), a severe vulnerability that [first saw active exploitation back in September 2020](<https://krebsonsecurity.com/2020/09/microsoft-attackers-exploiting-zerologon-windows-flaw/>).\n\nThe vulnerability, dubbed "**Zerologon**," is a bug in the core "**Netlogon**" component of Windows Server devices. The flaw lets an unauthenticated attacker gain administrative access to a Windows domain controller and run any application at will. A domain controller is a server that responds to security authentication requests in a Windows environment, and a compromised domain controller can give attackers the keys to the kingdom inside a corporate network.\n\nMicrosoft's [initial patch for CVE-2020-1472](<https://krebsonsecurity.com/2020/08/microsoft-patch-tuesday-august-2020-edition/>) fixed the flaw on Windows Server systems, but did nothing to stop unsupported or third-party devices from talking to domain controllers using the insecure Netlogon communications method. Microsoft said it chose this two-step approach "to ensure vendors of non-compliant implementations can provide customers with updates." With this month's patches, Microsoft will begin rejecting insecure Netlogon attempts from non-Windows devices.\n\nA couple of other, non-Windows security updates are worth mentioning. Adobe today [released updates to fix at least 50 security holes in a range of products](<https://blogs.adobe.com/psirt/?p=1965>), including Photoshop and Reader. The Acrobat/Reader update tackles a critical zero-day flaw that [Adobe says](<https://helpx.adobe.com/security/products/acrobat/apsb21-09.html>) is actively being exploited in the wild against Windows users, so if you have Adobe Acrobat or Reader installed, please make sure these programs are kept up to date.\n\nThere is also a zero-day flaw in **Google's Chrome Web browser** (CVE-2021-21148) that is seeing active attacks. Chrome downloads security updates automatically, but users still need to restart the browser for the updates to fully take effect. If you're a Chrome user and notice a red "update" prompt to the right of the address bar, it's time to save your work and restart the browser.\n\nStandard reminder: While staying up-to-date on Windows patches is a must, it\u2019s important to make sure you\u2019re updating only after you\u2019ve backed up your important data and files. A reliable backup means you\u2019re less likely to pull your hair out when the odd buggy patch causes problems booting the system.\n\nSo do yourself a favor and backup your files before installing any patches. Windows 10 even has [some built-in tools](<https://lifehacker.com/how-to-back-up-your-computer-automatically-with-windows-1762867473>) to help you do that, either on a per-file/folder basis or by making a complete and bootable copy of your hard drive all at once.\n\nKeep in mind that Windows 10 by default will automatically download and install updates on its own schedule. If you wish to ensure Windows has been set to pause updating so you can back up your files and/or system before the operating system decides to reboot and install patches, [see this guide](<https://www.computerworld.com/article/3543189/check-to-make-sure-you-have-windows-updates-paused.html>).\n\nAnd as always, if you experience glitches or problems installing any of these patches this month, please consider leaving a comment about it below; there\u2019s a better-than-even chance other readers have experienced the same and may chime in here with some helpful tips.", "edition": 2, "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-09T22:37:19", "type": "krebs", "title": "Microsoft Patch Tuesday, February 2021 Edition", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 9.3, "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-1472", "CVE-2021-1732", "CVE-2021-21148", "CVE-2021-24078"], "modified": "2021-02-09T22:37:19", "id": "KREBS:1BEFD58F5124A2E4CA40BD9C1B49B9B7", "href": "https://krebsonsecurity.com/2021/02/microsoft-patch-tuesday-february-2021-edition/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}], "securelist": [{"lastseen": "2021-05-31T11:03:47", "description": "![](https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2019/05/22101624/malware_SL_pic3-990x400.jpg)\n\n_These statistics are based on detection verdicts of Kaspersky products received from users who consented to provide statistical data._\n\n## Quarterly figures\n\nAccording to Kaspersky Security Network, in Q1 2021:\n\n * Kaspersky solutions blocked 2,023,556,082 attacks launched from online resources across the globe.\n * 613,968,631 unique URLs were recognized as malicious by Web Anti-Virus components.\n * Attempts to run malware designed to steal money via online access to bank accounts were stopped on the computers of 118,099 users.\n * Ransomware attacks were defeated on the computers of 91,841 unique users.\n * Our File Anti-Virus detected 77,415,192 unique malicious and potentially unwanted objects.\n\n## Financial threats\n\n### Financial threat statistics\n\nAt the end of last year, the number of users attacked by malware designed to steal money from bank accounts gradually decreased, a trend that continued in Q1 2021. This quarter, in total, Kaspersky solutions blocked the malware of such type on the computers of 118,099 unique users.\n\n_Number of unique users attacked by financial malware, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110545/01-en-malware-report-q1-2021-pc.png>))_\n\n**Attack geography**\n\n_To evaluate and compare the risk of being infected by banking Trojans and ATM/POS malware worldwide, for each country we calculated the share of users of Kaspersky products who faced this threat during the reporting period as a percentage of all users of our products in that country._\n\n_Geography of financial malware attacks, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110629/02-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries by share of attacked users**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Turkmenistan | 6.3 \n2 | Tajikistan | 5.3 \n3 | Afghanistan | 4.8 \n4 | Uzbekistan | 4.6 \n5 | Paraguay | 3.2 \n6 | Yemen | 2.1 \n7 | Costa Rica | 2.0 \n8 | Sudan | 2.0 \n9 | Syria | 1.5 \n10 | Venezuela | 1.4 \n \n_* Excluded are countries with relatively few Kaspersky product users (under 10,000). \n** Unique users whose computers were targeted by financial malware as a percentage of all unique users of Kaspersky products in the country._\n\nAs before, the most widespread family of bankers in Q1 was ZeuS/Zbot (30.8%). Second place was taken by the CliptoShuffler family (15.9%), and third by Trickster (7.5%). All in all, more than half of all attacked users encountered these families. The notorious banking Trojan Emotet (7.4%) was deprived of its infrastructure this quarter as a result of a [joint operation](<https://www.europol.europa.eu/newsroom/news/world's-most-dangerous-malware-emotet-disrupted-through-global-action>) by Europol, the FBI and other law enforcement agencies, and its share predictably collapsed.\n\n**Top 10 banking malware families**\n\n| Name | Verdicts | %* \n---|---|---|--- \n1 | Zbot | Trojan.Win32.Zbot | 30.8 \n2 | CliptoShuffler | Trojan-Banker.Win32.CliptoShuffler | 15.9 \n3 | Trickster | Trojan.Win32.Trickster | 7.5 \n4 | Emotet | Backdoor.Win32.Emotet | 7.4 \n5 | RTM | Trojan-Banker.Win32.RTM | 6.6 \n6 | Nimnul | Virus.Win32.Nimnul | 5.1 \n7 | Nymaim | Trojan.Win32.Nymaim | 4.7 \n8 | SpyEye | Trojan-Spy.Win32.SpyEye | 3.8 \n9 | Danabot | Trojan-Banker.Win32.Danabot | 2.9 \n10 | Neurevt | Trojan.Win32.Neurevt | 2.2 \n \n_** Unique users who encountered this malware family as a percentage of all users attacked by financial malware._\n\n## Ransomware programs\n\n### Quarterly trends and highlights\n\n**New additions to the ransomware arsenal**\n\nLast year, the SunCrypt and RagnarLocker ransomware groups adopted new scare tactics. If the victim organization is slow to pay up, even though its files are encrypted and some of its confidential data has been stolen, the attackers additionally threaten to carry out a DDoS attack. In Q1 2021, these two groups were joined by a third, Avaddon. Besides publishing stolen data, the ransomware operators said on their website that the victim would be subjected to a DDoS attack until it reached out to them.\n\nREvil (aka Sodinokibi) is another group looking to increase its extortion leverage. In addition to DDoS attacks, it has [added](<https://twitter.com/3xp0rtblog/status/1368149692383719426>) spam and calls to clients and partners of the victim company to its toolbox.\n\n**Attacks on vulnerable Exchange servers**\n\n[Serious vulnerabilities were recently discovered](<https://securelist.com/zero-day-vulnerabilities-in-microsoft-exchange-server/101096/>) in the Microsoft Exchange mail server, allowing [remote code execution](<https://encyclopedia.kaspersky.com/glossary/remote-code-execution-rce/?utm_source=securelist&utm_medium=blog&utm_campaign=termin-explanation>). Ransomware distributors wasted no time in exploiting these vulnerabilities; to date, this infection vector was seen being used by the Black Kingdom and DearCry families.\n\n**Publication of keys**\n\nThe developers of the Fonix (aka XINOF) ransomware ceased distributing their Trojan and posted the master key online for decrypting affected files. We took this key and created a [decryptor](<https://www.kaspersky.com/blog/fonix-decryptor/38646/>) that anyone can use. The developers of another strain of ransomware, Ziggy, not only [published](<https://www.bleepingcomputer.com/news/security/ziggy-ransomware-shuts-down-and-releases-victims-decryption-keys/>) the keys for all victims, but also announced their [intention](<https://www.bleepingcomputer.com/news/security/ransomware-admin-is-refunding-victims-their-ransom-payments/>) to return the money to everyone who paid up.\n\n**Law enforcement successes**\n\nLaw enforcement agencies under the US Department of Justice [seized](<https://www.justice.gov/opa/pr/department-justice-launches-global-action-against-netwalker-ransomware>) dark web resources used by NetWalker (aka Mailto) ransomware affiliates, and also brought charges against one of the alleged actors.\n\nFrench and Ukrainian law enforcers worked together to trace payments made through the Bitcoin ecosystem to Egregor ransomware distributors. The joint investigation resulted in the [arrest](<https://www.bleepingcomputer.com/news/security/egregor-ransomware-affiliates-arrested-by-ukrainian-french-police/>) of several alleged members of the Egregor gang.\n\nIn South Korea, a suspect in the GandCrab ransomware operation was [arrested](<https://www.bleepingcomputer.com/news/security/gandcrab-ransomware-affiliate-arrested-for-phishing-attacks/>) (this family ceased active distribution back in 2019).\n\n### Number of new modifications\n\nIn Q1 2021, we detected seven new ransomware families and 4,354 new modifications of this malware type.\n\n_Number of new ransomware modifications, Q1 2020 \u2013 Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110702/03-en-ru-es-malware-report-q1-2021-pc.png>))_\n\n### Number of users attacked by ransomware Trojans\n\nIn Q1 2021, Kaspersky products and technologies protected 91,841 users from ransomware attacks.\n\n_Number of unique users attacked by ransomware Trojans, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110733/04-en-malware-report-q1-2021-pc.png>))_\n\n### Attack geography\n\n_Geography of attacks by ransomware Trojans, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110802/05-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries attacked by ransomware Trojans**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Bangladesh | 2.31% \n2 | Ethiopia | 0.62% \n3 | Greece | 0.49% \n4 | Pakistan | 0.49% \n5 | China | 0.48% \n6 | Tunisia | 0.44% \n7 | Afghanistan | 0.42% \n8 | Indonesia | 0.38% \n9 | Taiwan, Province of China | 0.37% \n10 | Egypt | 0.28% \n \n_* Excluded are countries with relatively few Kaspersky users (under 50,000). \n** Unique users attacked by ransomware Trojans as a percentage of all unique users of Kaspersky products in the country._\n\n### Top 10 most common families of ransomware Trojans\n\n| **Name** | **Verdicts** | **%*** \n---|---|---|--- \n1 | WannaCry | Trojan-Ransom.Win32.Wanna | 19.37% \n2 | (generic verdict) | Trojan-Ransom.Win32.Gen | 12.01% \n3 | (generic verdict) | Trojan-Ransom.Win32.Phny | 9.31% \n4 | (generic verdict) | Trojan-Ransom.Win32.Encoder | 8.45% \n5 | (generic verdict) | Trojan-Ransom.Win32.Agent | 7.36% \n6 | PolyRansom/VirLock | Trojan-Ransom.Win32.PolyRansom\n\nVirus.Win32.PolyRansom | 3.78% \n7 | (generic verdict) | Trojan-Ransom.Win32.Crypren | 2.93% \n8 | Stop | Trojan-Ransom.Win32.Stop | 2.79% \n9 | (generic verdict) | Trojan-Ransom.Win32.Cryptor | 2.17% \n10 | REvil/Sodinokibi | Trojan-Ransom.Win32.Sodin | 1.85% \n \n_* Unique Kaspersky users attacked by this family of ransomware Trojans as a percentage of all users attacked by such malware._\n\n## Miners\n\n### Number of new modifications\n\nIn Q1 2021, Kaspersky solutions detected 23,894 new modifications of miners. And though January and February passed off relatively calmly, March saw a sharp rise in the number of new modifications \u2014 more than fourfold compared to February.\n\n_Number of new miner modifications, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24110831/06-en-malware-report-q1-2021-pc.png>))_\n\n### Number of users attacked by miners\n\nIn Q1, we detected attacks using miners on the computers of 432,171 unique users of Kaspersky products worldwide. Although this figure has been rising for three months, it is premature to talk about a reversal of last year's trend, whereby the number of users attacked by miners actually fell. For now, we can tentatively assume that the growth in cryptocurrency prices, in particular bitcoin, has attracted the attention of cybercriminals and returned miners to their toolkit.\n\n_Number of unique users attacked by miners, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111053/07-en-malware-report-q1-2021-pc.png>))_\n\n### Attack geography\n\n_Geography of miner attacks, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111128/08-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries attacked by miners**\n\n| **Country*** | **%**** \n---|---|--- \n1 | Afghanistan | 4.65 \n2 | Ethiopia | 3.00 \n3 | Rwanda | 2.37 \n4 | Uzbekistan | 2.23 \n5 | Kazakhstan | 1.81 \n6 | Sri Lanka | 1.78 \n7 | Ukraine | 1.59 \n8 | Vietnam | 1.48 \n9 | Mozambique | 1.46 \n10 | Tanzania | 1.45 \n \n_* Excluded are countries with relatively few users of Kaspersky products (under 50,000). \n** Unique users attacked by miners as a percentage of all unique users of Kaspersky products in the country._\n\n## Vulnerable applications used by cybercriminals during cyber attacks\n\nIn Q1 2021, we noted a drop in the share of exploits for vulnerabilities in the Microsoft Office suite, but they still lead the pack with 59%. The most common vulnerability in the suite remains [CVE-2017-11882](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11882>), a stack buffer overflow that occurs when processing objects in the Equation Editor component. Exploits for [CVE-2015-2523](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2523>) \u2014 use-after-free vulnerabilities in Microsoft Excel \u2014 and [CVE-2018-0802](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0802>), which we've often written about, were also in demand. Note the age of these vulnerabilities \u2014 even the latest of them was discovered almost three years ago. So, once again, we remind you of the importance of regular updates.\n\nThe first quarter was rich not only in known exploits, but also new zero-day vulnerabilities. In particular, the interest of both [infosec experts](<https://securelist.com/zero-day-vulnerabilities-in-microsoft-exchange-server/101096/>) and cybercriminals was piqued by vulnerabilities in the popular Microsoft Exchange Server:\n\n * [CVE-2021-26855](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-26855>)\u2014 a service-side request forgery vulnerability that allows remote code execution (RCE)\n * [CVE-2021-26857](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-26857>)\u2014 an insecure deserialization vulnerability in the Unified Messaging service that can lead to code execution on the server\n * [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-26858>)\u2014 a post-authorization arbitrary file write vulnerability in Microsoft Exchange, which could also lead to remote code execution\n * [CVE-2021-27065](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-27065>)\u2014 as in the case of [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-26858>), allows an authorized Microsoft Exchange user to write data to an arbitrary file in the system\n\nFound [in the wild](<https://encyclopedia.kaspersky.com/glossary/exploitation-in-the-wild-itw/?utm_source=securelist&utm_medium=blog&utm_campaign=termin-explanation>), these vulnerabilities were used by APT groups, including as a springboard for ransomware distribution.\n\nDuring the quarter, vulnerabilities were also identified in Windows itself. In particular, the [CVE-2021-1732](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-1732>) vulnerability allowing privilege escalation was discovered in the Win32k subsystem. Two other vulnerabilities, [CVE-2021-1647](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-1647>) and [CVE-2021-24092](<https://nvd.nist.gov/vuln/detail/CVE-2021-24092>), were found in the Microsoft Defender antivirus engine, allowing elevation of user privileges in the system and execution of potentially dangerous code.\n\n_Distribution of exploits used by cybercriminals, by type of attacked application, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111159/09-en-malware-report-q1-2021-pc.png>))_\n\nThe second most popular were exploits for browser vulnerabilities (26.12%); their share in Q1 grew by more than 12 p.p. Here, too, there was no doing without newcomers: for example, the Internet Explorer script engine was found to contain the [CVE-2021-26411](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-26411>) vulnerability, which can lead to remote code execution on behalf of the current user through manipulations that corrupt the heap memory. This vulnerability was exploited by the [Lazarus](<https://securelist.ru/tag/lazarus/>) group to download malicious code and infect the system. Several vulnerabilities were discovered in Google Chrome:\n\n * [CVE-2021-21148](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21148>)\u2014 heap buffer overflow in the V8 script engine, leading to remote code execution\n * [CVE-2021-21166](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21166>)\u2014 overflow and unsafe reuse of an object in memory when processing audio data, also enabling remote code execution\n * [CVE-2021-21139](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21139>)\u2014 bypassing security restrictions when using an iframe.\n\nOther interesting findings include a critical vulnerability in VMware vCenter Server, [CVE-2021-21972](<https://nvd.nist.gov/vuln/detail/CVE-2021-21972>), which allows remote code execution without any rights. Critical vulnerabilities in the popular SolarWinds Orion Platform \u2014 [CVE-2021-25274](<https://nvd.nist.gov/vuln/detail/CVE-2021-25274>), [CVE-2021-25275](<https://nvd.nist.gov/vuln/detail/CVE-2021-25275>) and [CVE-2021-25276](<https://nvd.nist.gov/vuln/detail/CVE-2021-25276>) \u2014 caused a major splash in the infosec environment. They gave attackers the ability to infect computers running this software, usually machines inside corporate networks and government institutions. Lastly, the [CVE-2021-21017](<https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21017>) vulnerability, discovered in Adobe Reader, caused a heap buffer overflow by means of a specially crafted document, giving an attacker the ability to execute code.\n\nAnalysis of network threats in Q1 2021 continued to show ongoing attempts to attack servers with a view to brute-force passwords for network services such as Microsoft SQL Server, RDP and SMB. Attacks using the popular EternalBlue, EternalRomance and other similar exploits were widespread. Among the most notable new vulnerabilities in this period were bugs in the Windows networking stack code related to handling the IPv4/IPv6 protocols: [CVE-2021-24074](<https://msrc.microsoft.com/update-guide/en-us/vulnerability/CVE-2021-24074>), [CVE-2021-24086](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24086>) and [CVE-2021-24094](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-24094>).\n\n## Attacks on macOS\n\nQ1 2021 was also rich in macOS-related news. Center-stage were cybercriminals who took pains to modify their [malware for the newly released MacBooks with M1 processors](<https://securelist.com/malware-for-the-new-apple-silicon-platform/101137/>). Updated adware for the new Macs also immediately appeared, in particular the [Pirrit family](<https://objective-see.com/blog/blog_0x62.html>) (whose members placed high in our Top 20 threats for macOS). In addition, we detected an interesting adware program written in the Rust language, and assigned it the verdict [AdWare.OSX.Convuster.a](<https://securelist.ru/convuster-macos-adware-in-rust/100859/>).\n\n**Top 20 threats for macOS**\n\n| **Verdict** | **%*** \n---|---|--- \n1 | AdWare.OSX.Pirrit.ac | 18.01 \n2 | AdWare.OSX.Pirrit.j | 12.69 \n3 | AdWare.OSX.Pirrit.o | 8.42 \n4 | AdWare.OSX.Bnodlero.at | 8.36 \n5 | Monitor.OSX.HistGrabber.b | 8.06 \n6 | AdWare.OSX.Pirrit.gen | 7.95 \n7 | Trojan-Downloader.OSX.Shlayer.a | 7.90 \n8 | AdWare.OSX.Cimpli.m | 6.17 \n9 | AdWare.OSX.Pirrit.aa | 6.05 \n10 | Backdoor.OSX.Agent.z | 5.27 \n11 | Trojan-Downloader.OSX.Agent.h | 5.09 \n12 | AdWare.OSX.Bnodlero.bg | 4.60 \n13 | AdWare.OSX.Ketin.h | 4.02 \n14 | AdWare.OSX.Bnodlero.bc | 3.87 \n15 | AdWare.OSX.Bnodlero.t | 3.84 \n16 | AdWare.OSX.Cimpli.l | 3.75 \n17 | Trojan-Downloader.OSX.Lador.a | 3.61 \n18 | AdWare.OSX.Cimpli.k | 3.48 \n19 | AdWare.OSX.Ketin.m | 2.98 \n20 | AdWare.OSX.Bnodlero.ay | 2.94 \n \n_* Unique users who encountered this malware as a percentage of all users of Kaspersky security solutions for macOS who were attacked._\n\nTraditionally, most of the Top 20 threats for macOS are adware programs: 15 in Q1. In the list of malicious programs, Trojan-Downloader.OSX.Shlayer.a (7.90%) maintained its popularity. Incidentally, this Trojan's task is to download adware from the Pirrit and Bnodlero families. But we also saw the reverse, when a member of the AdWare.OSX.Pirrit family dropped Backdoor.OSX.Agent.z into the system.\n\n### Threat geography\n\n_Geography of threats for macOS, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111228/10-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries by share of attacked users**\n\n| **Country*** | **%**** \n---|---|--- \n1 | France | 4.62 \n2 | Spain | 4.43 \n3 | Italy | 4.36 \n4 | India | 4.11 \n5 | Canada | 3.59 \n6 | Mexico | 3.55 \n7 | Russia | 3.21 \n8 | Brazil | 3.18 \n9 | Great Britain | 2.96 \n10 | USA | 2.94 \n \n_* Excluded from the rating are countries with relatively few users of Kaspersky security solutions for macOS (under 10,000) \n** Unique users attacked as a percentage of all users of Kaspersky security solutions for macOS in the country._\n\nIn Q1 2021, Europe accounted for the Top 3 countries by share of attacked macOS users: France (4.62%), Spain (4.43%) and Italy (4.36%). The most common threats in all three were adware apps from the Pirrit family.\n\n## IoT attacks\n\n### IoT threat statistics\n\nIn Q1 2021, most of the devices that attacked Kaspersky traps did so using the Telnet protocol. A third of the attacking devices attempted to [brute-force](<https://encyclopedia.kaspersky.com/glossary/brute-force/?utm_source=securelist&utm_medium=blog&utm_campaign=termin-explanation>) our SSH traps.\n\nTelnet | 69.48% \n---|--- \nSSH | 30.52% \n \n_Distribution of attacked services by number of unique IP addresses of devices that carried out attacks, Q1 2021_\n\nThe statistics for cybercriminal working sessions with Kaspersky honeypots show similar Telnet dominance.\n\nTelnet | 77.81% \n---|--- \nSSH | 22.19% \n \n_Distribution of cybercriminal working sessions with Kaspersky traps, Q1 2021_\n\n_Geography of IP addresses of devices from which attempts were made to attack Kaspersky Telnet traps, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111259/11-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries by location of devices from which attacks were carried out on Kaspersky Telnet traps**\n\n** ** | **Country** | **%*** \n---|---|--- \n1 | China | 33.40 \n2 | India | 13.65 \n3 | USA | 11.56 \n4 | Russia | 4.96 \n5 | Montenegro | 4.20 \n6 | Brazil | 4.19 \n7 | Taiwan, Province of China | 2.32 \n8 | Iran | 1.85 \n9 | Egypt | 1.84 \n10 | Vietnam | 1.73 \n \n_* Devices from which attacks were carried out in the given country as a percentage of the total number of devices in that country._\n\n### SSH-based attacks\n\n_Geography of IP addresses of devices from which attempts were made to attack Kaspersky SSH traps, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111335/12-en-malware-report-q1-2021-pc.png>))_\n\n**Top 10 countries by location of devices from which attacks were made on Kaspersky SSH traps**\n\n** ** | **Country** | **%*** \n---|---|--- \n1 | USA | 24.09 \n2 | China | 19.89 \n3 | Hong Kong | 6.38 \n4 | South Korea | 4.37 \n5 | Germany | 4.06 \n6 | Brazil | 3.74 \n7 | Russia | 3.05 \n8 | Taiwan, Province of China | 2.80 \n9 | France | 2.59 \n10 | India | 2.36 \n \n_* Devices from which attacks were carried out in the given country as a percentage of the total number of devices in that country._\n\n### Threats loaded into traps\n\n| Verdict | %* \n---|---|--- \n1 | Backdoor.Linux.Mirai.b | 50.50% \n2 | Trojan-Downloader.Linux.NyaDrop.b | 9.26% \n3 | Backdoor.Linux.Gafgyt.a | 3.01% \n4 | HEUR:Trojan-Downloader.Shell.Agent.bc | 2.72% \n5 | Backdoor.Linux.Mirai.a | 2.72% \n6 | Backdoor.Linux.Mirai.ba | 2.67% \n7 | Backdoor.Linux.Agent.bc | 2.37% \n8 | Trojan-Downloader.Shell.Agent.p | 1.37% \n9 | Backdoor.Linux.Gafgyt.bj | 0.78% \n10 | Trojan-Downloader.Linux.Mirai.d | 0.66% \n \n_* Share of malware type in the total number of malicious programs downloaded to IoT devices following a successful attack._\n\n## Attacks via web resources\n\n_The statistics in this section are based on Web Anti-Virus, which protects users when malicious objects are downloaded from malicious/infected web pages. Cybercriminals create such sites on purpose; web resources with user-created content (for example, forums), as well as hacked legitimate resources, can be infected._\n\n### Countries that are sources of web-based attacks: Top 10\n\n_The following statistics show the distribution by country of the sources of Internet attacks blocked by Kaspersky products on user computers (web pages with redirects to exploits, sites containing exploits and other malicious programs, botnet C&C centers, etc.). Any unique host could be the source of one or more web-based attacks._\n\n_To determine the geographical source of web-based attacks, domain names are matched against their actual domain IP addresses, and then the geographical location of a specific IP address (GEOIP) is established._\n\nIn Q1 2021, Kaspersky solutions blocked 2,023,556,082 attacks launched from online resources located across the globe. 613,968,631 unique URLs were recognized as malicious by Web Anti-Virus.\n\n_Distribution of web attack sources by country, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111405/13-en-malware-report-q1-2021-pc.png>))_\n\n### Countries where users faced the greatest risk of online infection\n\nTo assess the risk of online infection faced by users in different countries, for each country we calculated the percentage of Kaspersky users on whose computers Web Anti-Virus was triggered during the quarter. The resulting data provides an indication of the aggressiveness of the environment in which computers operate in different countries.\n\nThis rating only includes attacks by malicious objects that fall under the **Malware class**; it does not include Web Anti-Virus detections of potentially dangerous or unwanted programs such as RiskTool or adware.\n\n| Country* | % of attacked users** \n---|---|--- \n1 | Belarus | 15.81 \n2 | Ukraine | 13.60 \n3 | Moldova | 13.16 \n4 | Kyrgyzstan | 11.78 \n5 | Latvia | 11.38 \n6 | Algeria | 11.16 \n7 | Russia | 11.11 \n8 | Mauritania | 11.08 \n9 | Kazakhstan | 10.62 \n10 | Tajikistan | 10.60 \n11 | Uzbekistan | 10.39 \n12 | Estonia | 10.20 \n13 | Armenia | 9.44 \n14 | Mongolia | 9.36 \n15 | France | 9.35 \n16 | Greece | 9.04 \n17 | Azerbaijan | 8.57 \n18 | Madagascar | 8.56 \n19 | Morocco | 8.55 \n20 | Lithuania | 8.53 \n \n_* Excluded are countries with relatively few Kaspersky users (under 10,000). \n** Unique users targeted by **Malware-class** attacks as a percentage of all unique users of Kaspersky products in the country._\n\n_These statistics are based on detection verdicts by the Web Anti-Virus module that were received from users of Kaspersky products who consented to provide statistical data._\n\nOn average, 7.67% of Internet user computers worldwide experienced at least one **Malware-class** attack.\n\n_Geography of web-based malware attacks, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111435/14-en-malware-report-q1-2021-pc.png>))_\n\n## Local threats\n\n_In this section, we analyze statistical data obtained from the OAS and ODS modules in Kaspersky products. It takes into account malicious programs that were found directly on users' computers or removable media connected to them (flash drives, camera memory cards, phones, external hard drives), or which initially made their way onto the computer in non-open form (for example, programs in complex installers, encrypted files, etc.)._\n\nIn Q1 2021, our File Anti-Virus detected **77,415,192** malicious and potentially unwanted objects.\n\n### Countries where users faced the highest risk of local infection\n\nFor each country, we calculated the percentage of Kaspersky product users on whose computers File Anti-Virus was triggered during the reporting period. These statistics reflect the level of personal computer infection in different countries.\n\nNote that this rating only includes attacks by malicious programs that fall under the **Malware class**; it does not include File Anti-Virus triggers in response to potentially dangerous or unwanted programs, such as RiskTool or adware.\n\n| Country* | % of attacked users** \n---|---|--- \n1 | Afghanistan | 47.71 \n2 | Turkmenistan | 43.39 \n3 | Ethiopia | 41.03 \n4 | Tajikistan | 38.96 \n5 | Bangladesh | 36.21 \n6 | Algeria | 35.49 \n7 | Myanmar | 35.16 \n8 | Uzbekistan | 34.95 \n9 | South Sudan | 34.17 \n10 | Benin | 34.08 \n11 | China | 33.34 \n12 | Iraq | 33.14 \n13 | Laos | 32.84 \n14 | Burkina Faso | 32.61 \n15 | Mali | 32.42 \n16 | Guinea | 32.40 \n17 | Yemen | 32.32 \n18 | Mauritania | 32.22 \n19 | Burundi | 31.68 \n20 | Sudan | 31.61 \n \n_* Excluded are countries with relatively few Kaspersky users (under 10,000)._ \n_** Unique users on whose computers **Malware-class** local threats were blocked, as a percentage of all unique users of Kaspersky products in the country._\n\n_Geography of local infection attempts, Q1 2021 ([download](<https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2021/05/24111505/15-en-malware-report-q1-2021-pc.png>))_\n\nOverall, 15.05% of user computers globally faced at least one **Malware-class** local threat during Q1.", "cvss3": {}, "published": "2021-05-31T10:00:05", "type": "securelist", "title": "IT threat evolution Q1 2021. Non-mobile statistics", "bulletinFamily": "blog", "cvss2": {}, "cvelist": ["CVE-2015-2523", "CVE-2017-11882", "CVE-2018-0802", "CVE-2021-1647", "CVE-2021-1732", "CVE-2021-21017", "CVE-2021-21139", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21972", "CVE-2021-24074", "CVE-2021-24086", "CVE-2021-24092", "CVE-2021-24094", "CVE-2021-25274", "CVE-2021-25275", "CVE-2021-25276", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27065"], "modified": "2021-05-31T10:00:05", "id": "SECURELIST:20C7BC6E3C43CD3D939A2E3EAE01D4C1", "href": "https://securelist.com/it-threat-evolution-q1-2021-non-mobile-statistics/102425/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "osv": [{"lastseen": "2022-08-10T07:07:06", "description": "\nSeveral vulnerabilities have been discovered in the chromium web browser.\n\n\n* [CVE-2021-21148](https://security-tracker.debian.org/tracker/CVE-2021-21148)\nMattias Buelens discovered a buffer overflow issue in the v8 javascript\n library.\n* [CVE-2021-21149](https://security-tracker.debian.org/tracker/CVE-2021-21149)\nRyoya Tsukasaki discovered a stack overflow issue in the Data Transfer\n implementation.\n* [CVE-2021-21150](https://security-tracker.debian.org/tracker/CVE-2021-21150)\nWoojin Oh discovered a use-after-free issue in the file downloader.\n* [CVE-2021-21151](https://security-tracker.debian.org/tracker/CVE-2021-21151)\nKhalil Zhani discovered a use-after-free issue in the payments system.\n* [CVE-2021-21152](https://security-tracker.debian.org/tracker/CVE-2021-21152)\nA buffer overflow was discovered in media handling.\n* [CVE-2021-21153](https://security-tracker.debian.org/tracker/CVE-2021-21153)\nJan Ruge discovered a stack overflow issue in the GPU process.\n* [CVE-2021-21154](https://security-tracker.debian.org/tracker/CVE-2021-21154)\nAbdulrahman Alqabandi discovered a buffer overflow issue in the Tab Strip\n implementation.\n* [CVE-2021-21155](https://security-tracker.debian.org/tracker/CVE-2021-21155)\nKhalil Zhani discovered a buffer overflow issue in the Tab Strip\n implementation.\n* [CVE-2021-21156](https://security-tracker.debian.org/tracker/CVE-2021-21156)\nSergei Glazunov discovered a buffer overflow issue in the v8 javascript\n library.\n* [CVE-2021-21157](https://security-tracker.debian.org/tracker/CVE-2021-21157)\nA use-after-free issue was discovered in the Web Sockets implementation.\n\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 88.0.4324.182-1~deb10u1.\n\n\nWe recommend that you upgrade your chromium packages.\n\n\nFor the detailed security status of chromium please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/chromium](https://security-tracker.debian.org/tracker/chromium)\n\n\n", "edition": 1, "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-02-19T00:00:00", "type": "osv", "title": "chromium - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21151", "CVE-2021-21156", "CVE-2021-21155", "CVE-2021-21150", "CVE-2021-21152", "CVE-2021-21154", "CVE-2021-21149", "CVE-2021-21153", "CVE-2021-21157"], "modified": "2022-08-10T07:07:04", "id": "OSV:DSA-4858-1", "href": "https://osv.dev/vulnerability/DSA-4858-1", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2022-08-10T07:19:54", "description": "\nSeveral vulnerabilites have been discovered in the chromium web browser.\n\n\n* [CVE-2021-21159](https://security-tracker.debian.org/tracker/CVE-2021-21159)\nKhalil Zhani discovered a buffer overflow issue in the tab implementation.\n* [CVE-2021-21160](https://security-tracker.debian.org/tracker/CVE-2021-21160)\nMarcin Noga discovered a buffer overflow issue in WebAudio.\n* [CVE-2021-21161](https://security-tracker.debian.org/tracker/CVE-2021-21161)\nKhalil Zhani discovered a buffer overflow issue in the tab implementation.\n* [CVE-2021-21162](https://security-tracker.debian.org/tracker/CVE-2021-21162)\nA use-after-free issue was discovered in the WebRTC implementation.\n* [CVE-2021-21163](https://security-tracker.debian.org/tracker/CVE-2021-21163)\nAlison Huffman discovered a data validation issue.\n* [CVE-2021-21165](https://security-tracker.debian.org/tracker/CVE-2021-21165)\nAlison Huffman discovered an error in the audio implementation.\n* [CVE-2021-21166](https://security-tracker.debian.org/tracker/CVE-2021-21166)\nAlison Huffman discovered an error in the audio implementation.\n* [CVE-2021-21167](https://security-tracker.debian.org/tracker/CVE-2021-21167)\nLeecraso and Guang Gong discovered a use-after-free issue in the bookmarks\n implementation.\n* [CVE-2021-21168](https://security-tracker.debian.org/tracker/CVE-2021-21168)\nLuan Herrera discovered a policy enforcement error in the appcache.\n* [CVE-2021-21169](https://security-tracker.debian.org/tracker/CVE-2021-21169)\nBohan Liu and Moon Liang discovered an out-of-bounds access issue in the\n v8 javascript library.\n* [CVE-2021-21170](https://security-tracker.debian.org/tracker/CVE-2021-21170)\nDavid Erceg discovered a user interface error.\n* [CVE-2021-21171](https://security-tracker.debian.org/tracker/CVE-2021-21171)\nIrvan Kurniawan discovered a user interface error.\n* [CVE-2021-21172](https://security-tracker.debian.org/tracker/CVE-2021-21172)\nMaciej Pulikowski discovered a policy enforcement error in the File\n System API.\n* [CVE-2021-21173](https://security-tracker.debian.org/tracker/CVE-2021-21173)\nTom Van Goethem discovered a network based information leak.\n* [CVE-2021-21174](https://security-tracker.debian.org/tracker/CVE-2021-21174)\nAshish Guatam Kambled discovered an implementation error in the Referrer\n policy.\n* [CVE-2021-21175](https://security-tracker.debian.org/tracker/CVE-2021-21175)\nJun Kokatsu discovered an implementation error in the Site Isolation\n feature.\n* [CVE-2021-21176](https://security-tracker.debian.org/tracker/CVE-2021-21176)\nLuan Herrera discovered an implementation error in the full screen mode.\n* [CVE-2021-21177](https://security-tracker.debian.org/tracker/CVE-2021-21177)\nAbdulrahman Alqabandi discovered a policy enforcement error in the\n Autofill feature.\n* [CVE-2021-21178](https://security-tracker.debian.org/tracker/CVE-2021-21178)\nJapong discovered an error in the Compositor implementation.\n* [CVE-2021-21179](https://security-tracker.debian.org/tracker/CVE-2021-21179)\nA use-after-free issue was discovered in the networking implementation.\n* [CVE-2021-21180](https://security-tracker.debian.org/tracker/CVE-2021-21180)\nAbdulrahman Alqabandi discovered a use-after-free issue in the tab search\n feature.\n* [CVE-2021-21181](https://security-tracker.debian.org/tracker/CVE-2021-21181)\nXu Lin, Panagiotis Ilias, and Jason Polakis discovered a side-channel\n information leak in the Autofill feature.\n* [CVE-2021-21182](https://security-tracker.debian.org/tracker/CVE-2021-21182)\nLuan Herrera discovered a policy enforcement error in the site navigation\n implementation.\n* [CVE-2021-21183](https://security-tracker.debian.org/tracker/CVE-2021-21183)\nTakashi Yoneuchi discovered an implementation error in the Performance API.\n* [CVE-2021-21184](https://security-tracker.debian.org/tracker/CVE-2021-21184)\nJames Hartig discovered an implementation error in the Performance API.\n* [CVE-2021-21185](https://security-tracker.debian.org/tracker/CVE-2021-21185)\nDavid Erceg discovered a policy enforcement error in Extensions.\n* [CVE-2021-21186](https://security-tracker.debian.org/tracker/CVE-2021-21186)\ndhirajkumarnifty discovered a policy enforcement error in the QR scan\n implementation.\n* [CVE-2021-21187](https://security-tracker.debian.org/tracker/CVE-2021-21187)\nKirtikumar Anandrao Ramchandani discovered a data validation error in\n URL formatting.\n* [CVE-2021-21188](https://security-tracker.debian.org/tracker/CVE-2021-21188)\nWoojin Oh discovered a use-after-free issue in Blink/Webkit.\n* [CVE-2021-21189](https://security-tracker.debian.org/tracker/CVE-2021-21189)\nKhalil Zhani discovered a policy enforcement error in the Payments\n implementation.\n* [CVE-2021-21190](https://security-tracker.debian.org/tracker/CVE-2021-21190)\nZhou Aiting discovered use of uninitialized memory in the pdfium library.\n* [CVE-2021-21191](https://security-tracker.debian.org/tracker/CVE-2021-21191)\nraven discovered a use-after-free issue in the WebRTC implementation.\n* [CVE-2021-21192](https://security-tracker.debian.org/tracker/CVE-2021-21192)\nAbdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n* [CVE-2021-21193](https://security-tracker.debian.org/tracker/CVE-2021-21193)\nA use-after-free issue was discovered in Blink/Webkit.\n* [CVE-2021-21194](https://security-tracker.debian.org/tracker/CVE-2021-21194)\nLeecraso and Guang Gong discovered a use-after-free issue in the screen\n capture feature.\n* [CVE-2021-21195](https://security-tracker.debian.org/tracker/CVE-2021-21195)\nLiu and Liang discovered a use-after-free issue in the v8 javascript\n library.\n* [CVE-2021-21196](https://security-tracker.debian.org/tracker/CVE-2021-21196)\nKhalil Zhani discovered a buffer overflow issue in the tab implementation.\n* [CVE-2021-21197](https://security-tracker.debian.org/tracker/CVE-2021-21197)\nAbdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n* [CVE-2021-21198](https://security-tracker.debian.org/tracker/CVE-2021-21198)\nMark Brand discovered an out-of-bounds read issue in the Inter-Process\n Communication implementation.\n* [CVE-2021-21199](https://security-tracker.debian.org/tracker/CVE-2021-21199)\nWeipeng Jiang discovered a use-after-free issue in the Aura window and\n event manager.\n\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 89.0.4389.114-1~deb10u1.\n\n\nWe recommend that you upgrade your chromium packages.\n\n\nFor the detailed security status of chromium please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/chromium](https://security-tracker.debian.org/tracker/chromium)\n\n\n", "edition": 1, "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-04-06T00:00:00", "type": "osv", "title": "chromium - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21168", "CVE-2021-21173", "CVE-2021-21185", "CVE-2021-21192", "CVE-2021-21165", "CVE-2021-21179", "CVE-2021-21196", "CVE-2021-21195", "CVE-2021-21171", "CVE-2021-21161", "CVE-2021-21178", "CVE-2021-21176", "CVE-2021-21159", "CVE-2021-21187", "CVE-2021-21180", "CVE-2021-21170", "CVE-2021-21162", "CVE-2021-21181", "CVE-2021-21167", "CVE-2021-21199", "CVE-2021-21172", "CVE-2021-21191", "CVE-2021-21163", "CVE-2021-21186", "CVE-2021-21193", "CVE-2021-21166", "CVE-2021-21194", "CVE-2021-21175", "CVE-2021-21198", "CVE-2021-21190", "CVE-2021-21160", "CVE-2021-21184", "CVE-2021-21188", "CVE-2021-21174", "CVE-2021-21177", "CVE-2021-21189", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21169", "CVE-2021-21197"], "modified": "2022-08-10T07:19:50", "id": "OSV:DSA-4886-1", "href": "https://osv.dev/vulnerability/DSA-4886-1", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "debian": [{"lastseen": "2021-10-21T17:58:19", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4858-1 security@debian.org\nhttps://www.debian.org/security/ Michael Gilbert\nFebruary 19, 2021 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : chromium\nCVE ID : CVE-2021-21148 CVE-2021-21149 CVE-2021-21150 CVE-2021-21151\n CVE-2021-21152 CVE-2021-21153 CVE-2021-21154 CVE-2021-21155\n CVE-2021-21156 CVE-2021-21157\n\nSeveral vulnerabilities have been discovered in the chromium web browser.\n\nCVE-2021-21148\n\n Mattias Buelens discovered a buffer overflow issue in the v8 javascript\n library.\n\nCVE-2021-21149\n\n Ryoya Tsukasaki discovered a stack overflow issue in the Data Transfer\n implementation.\n\nCVE-2021-21150\n\n Woojin Oh discovered a use-after-free issue in the file downloader.\n\nCVE-2021-21151\n\n Khalil Zhani discovered a use-after-free issue in the payments system.\n\nCVE-2021-21152\n\n A buffer overflow was discovered in media handling.\n\nCVE-2021-21153\n\n Jan Ruge discovered a stack overflow issue in the GPU process.\n\nCVE-2021-21154\n\n Abdulrahman Alqabandi discovered a buffer overflow issue in the Tab Strip\n implementation.\n\nCVE-2021-21155\n\n Khalil Zhani discovered a buffer overflow issue in the Tab Strip\n implementation.\n\nCVE-2021-21156\n\n Sergei Glazunov discovered a buffer overflow issue in the v8 javascript\n library.\n\nCVE-2021-21157\n\n A use-after-free issue was discovered in the Web Sockets implementation.\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 88.0.4324.182-1~deb10u1.\n\nWe recommend that you upgrade your chromium packages.\n\nFor the detailed security status of chromium please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/chromium\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-02-20T02:29:52", "type": "debian", "title": "[SECURITY] [DSA 4858-1] chromium security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157"], "modified": "2021-02-20T02:29:52", "id": "DEBIAN:DSA-4858-1:7131E", "href": "https://lists.debian.org/debian-security-announce/2021/msg00039.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-11-29T22:22:24", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4886-1 security@debian.org\nhttps://www.debian.org/security/ Michael Gilbert\nApril 06, 2021 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : chromium\nCVE ID : CVE-2021-21159 CVE-2021-21160 CVE-2021-21161 CVE-2021-21162\n CVE-2021-21163 CVE-2021-21165 CVE-2021-21166 CVE-2021-21167\n CVE-2021-21168 CVE-2021-21169 CVE-2021-21170 CVE-2021-21171\n CVE-2021-21172 CVE-2021-21173 CVE-2021-21174 CVE-2021-21175\n CVE-2021-21176 CVE-2021-21177 CVE-2021-21178 CVE-2021-21179\n CVE-2021-21180 CVE-2021-21181 CVE-2021-21182 CVE-2021-21183\n CVE-2021-21184 CVE-2021-21185 CVE-2021-21186 CVE-2021-21187\n CVE-2021-21188 CVE-2021-21189 CVE-2021-21190 CVE-2021-21191\n CVE-2021-21192 CVE-2021-21193 CVE-2021-21194 CVE-2021-21195\n CVE-2021-21196 CVE-2021-21197 CVE-2021-21198 CVE-2021-21199\n\nSeveral vulnerabilites have been discovered in the chromium web browser.\n\nCVE-2021-21159\n\n Khalil Zhani disocvered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21160\n\n Marcin Noga discovered a buffer overflow issue in WebAudio.\n\nCVE-2021-21161\n\n Khalil Zhani disocvered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21162\n\n A use-after-free issue was discovered in the WebRTC implementation.\n\nCVE-2021-21163\n\n Alison Huffman discovered a data validation issue.\n\nCVE-2021-21165\n\n Alison Huffman discovered an error in the audio implementation.\n\nCVE-2021-21166\n\n Alison Huffman discovered an error in the audio implementation.\n\nCVE-2021-21167\n\n Leecraso and Guang Gong discovered a use-after-free issue in the bookmarks\n implementation.\n\nCVE-2021-21168\n\n Luan Herrera discovered a policy enforcement error in the appcache.\n\nCVE-2021-21169\n\n Bohan Liu and Moon Liang discovered an out-of-bounds access issue in the\n v8 javascript library.\n\nCVE-2021-21170\n\n David Erceg discovered a user interface error.\n\nCVE-2021-21171\n\n Irvan Kurniawan discovered a user interface error.\n\nCVE-2021-21172\n\n Maciej Pulikowski discovered a policy enforcement error in the File\n System API.\n\nCVE-2021-21173\n\n Tom Van Goethem discovered a network based information leak.\n\nCVE-2021-21174\n\n Ashish Guatam Kambled discovered an implementation error in the Referrer\n policy.\n\nCVE-2021-21175\n\n Jun Kokatsu discovered an implementation error in the Site Isolation\n feature.\n\nCVE-2021-21176\n\n Luan Herrera discovered an implementation error in the full screen mode.\n\nCVE-2021-21177\n\n Abdulrahman Alqabandi discovered a policy enforcement error in the\n Autofill feature.\n\nCVE-2021-21178\n\n Japong discovered an error in the Compositor implementation.\n\nCVE-2021-21179\n\n A use-after-free issue was discovered in the networking implementation.\n\nCVE-2021-21180\n\n Abdulrahman Alqabandi discovered a use-after-free issue in the tab search\n feature.\n\nCVE-2021-21181\n\n Xu Lin, Panagiotis Ilias, and Jason Polakis discovered a side-channel\n information leak in the Autofill feature.\n\nCVE-2021-21182\n\n Luan Herrera discovered a policy enforcement error in the site navigation\n implementation.\n\nCVE-2021-21183\n\n Takashi Yoneuchi discovered an implementation error in the Performance API.\n\nCVE-2021-21184\n\n James Hartig discovered an implementation error in the Performance API.\n\nCVE-2021-21185\n\n David Erceg discovered a policy enforcement error in Extensions.\n\nCVE-2021-21186\n\n dhirajkumarnifty discovered a policy enforcement error in the QR scan\n implementation.\n\nCVE-2021-21187\n\n Kirtikumar Anandrao Ramchandani discovered a data validation error in\n URL formatting.\n\nCVE-2021-21188\n\n Woojin Oh discovered a use-after-free issue in Blink/Webkit.\n\nCVE-2021-21189\n\n Khalil Zhani discovered a policy enforcement error in the Payments\n implementation.\n\nCVE-2021-21190\n\n Zhou Aiting discovered use of uninitialized memory in the pdfium library.\n\nCVE-2021-21191\n\n raven discovered a use-after-free issue in the WebRTC implementation.\n\nCVE-2021-21192\n\n Abdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n\nCVE-2021-21193\n\n A use-after-free issue was discovered in Blink/Webkit.\n\nCVE-2021-21194\n\n Leecraso and Guang Gong discovered a use-after-free issue in the screen\n capture feature.\n\nCVE-2021-21195\n\n Liu and Liang discovered a use-after-free issue in the v8 javascript\n library.\n\nCVE-2021-21196\n\n Khalil Zhani discovered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21197\n\n Abdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n\nCVE-2021-21198\n\n Mark Brand discovered an out-of-bounds read issue in the Inter-Process\n Communication implementation.\n\nCVE-2021-21199\n\n Weipeng Jiang discovered a use-after-free issue in the Aura window and\n event manager.\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 89.0.4389.114-1~deb10u1.\n\nWe recommend that you upgrade your chromium packages.\n\nFor the detailed security status of chromium please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/chromium\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-06T13:38:49", "type": "debian", "title": "[SECURITY] [DSA 4886-1] chromium security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193", "CVE-2021-21194", "CVE-2021-21195", "CVE-2021-21196", "CVE-2021-21197", "CVE-2021-21198", "CVE-2021-21199"], "modified": "2021-04-06T13:38:49", "id": "DEBIAN:DSA-4886-1:0EF07", "href": "https://lists.debian.org/debian-security-announce/2021/msg00067.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-10-21T17:39:47", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-4886-1 security@debian.org\nhttps://www.debian.org/security/ Michael Gilbert\nApril 06, 2021 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : chromium\nCVE ID : CVE-2021-21159 CVE-2021-21160 CVE-2021-21161 CVE-2021-21162\n CVE-2021-21163 CVE-2021-21165 CVE-2021-21166 CVE-2021-21167\n CVE-2021-21168 CVE-2021-21169 CVE-2021-21170 CVE-2021-21171\n CVE-2021-21172 CVE-2021-21173 CVE-2021-21174 CVE-2021-21175\n CVE-2021-21176 CVE-2021-21177 CVE-2021-21178 CVE-2021-21179\n CVE-2021-21180 CVE-2021-21181 CVE-2021-21182 CVE-2021-21183\n CVE-2021-21184 CVE-2021-21185 CVE-2021-21186 CVE-2021-21187\n CVE-2021-21188 CVE-2021-21189 CVE-2021-21190 CVE-2021-21191\n CVE-2021-21192 CVE-2021-21193 CVE-2021-21194 CVE-2021-21195\n CVE-2021-21196 CVE-2021-21197 CVE-2021-21198 CVE-2021-21199\n\nSeveral vulnerabilites have been discovered in the chromium web browser.\n\nCVE-2021-21159\n\n Khalil Zhani disocvered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21160\n\n Marcin Noga discovered a buffer overflow issue in WebAudio.\n\nCVE-2021-21161\n\n Khalil Zhani disocvered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21162\n\n A use-after-free issue was discovered in the WebRTC implementation.\n\nCVE-2021-21163\n\n Alison Huffman discovered a data validation issue.\n\nCVE-2021-21165\n\n Alison Huffman discovered an error in the audio implementation.\n\nCVE-2021-21166\n\n Alison Huffman discovered an error in the audio implementation.\n\nCVE-2021-21167\n\n Leecraso and Guang Gong discovered a use-after-free issue in the bookmarks\n implementation.\n\nCVE-2021-21168\n\n Luan Herrera discovered a policy enforcement error in the appcache.\n\nCVE-2021-21169\n\n Bohan Liu and Moon Liang discovered an out-of-bounds access issue in the\n v8 javascript library.\n\nCVE-2021-21170\n\n David Erceg discovered a user interface error.\n\nCVE-2021-21171\n\n Irvan Kurniawan discovered a user interface error.\n\nCVE-2021-21172\n\n Maciej Pulikowski discovered a policy enforcement error in the File\n System API.\n\nCVE-2021-21173\n\n Tom Van Goethem discovered a network based information leak.\n\nCVE-2021-21174\n\n Ashish Guatam Kambled discovered an implementation error in the Referrer\n policy.\n\nCVE-2021-21175\n\n Jun Kokatsu discovered an implementation error in the Site Isolation\n feature.\n\nCVE-2021-21176\n\n Luan Herrera discovered an implementation error in the full screen mode.\n\nCVE-2021-21177\n\n Abdulrahman Alqabandi discovered a policy enforcement error in the\n Autofill feature.\n\nCVE-2021-21178\n\n Japong discovered an error in the Compositor implementation.\n\nCVE-2021-21179\n\n A use-after-free issue was discovered in the networking implementation.\n\nCVE-2021-21180\n\n Abdulrahman Alqabandi discovered a use-after-free issue in the tab search\n feature.\n\nCVE-2021-21181\n\n Xu Lin, Panagiotis Ilias, and Jason Polakis discovered a side-channel\n information leak in the Autofill feature.\n\nCVE-2021-21182\n\n Luan Herrera discovered a policy enforcement error in the site navigation\n implementation.\n\nCVE-2021-21183\n\n Takashi Yoneuchi discovered an implementation error in the Performance API.\n\nCVE-2021-21184\n\n James Hartig discovered an implementation error in the Performance API.\n\nCVE-2021-21185\n\n David Erceg discovered a policy enforcement error in Extensions.\n\nCVE-2021-21186\n\n dhirajkumarnifty discovered a policy enforcement error in the QR scan\n implementation.\n\nCVE-2021-21187\n\n Kirtikumar Anandrao Ramchandani discovered a data validation error in\n URL formatting.\n\nCVE-2021-21188\n\n Woojin Oh discovered a use-after-free issue in Blink/Webkit.\n\nCVE-2021-21189\n\n Khalil Zhani discovered a policy enforcement error in the Payments\n implementation.\n\nCVE-2021-21190\n\n Zhou Aiting discovered use of uninitialized memory in the pdfium library.\n\nCVE-2021-21191\n\n raven discovered a use-after-free issue in the WebRTC implementation.\n\nCVE-2021-21192\n\n Abdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n\nCVE-2021-21193\n\n A use-after-free issue was discovered in Blink/Webkit.\n\nCVE-2021-21194\n\n Leecraso and Guang Gong discovered a use-after-free issue in the screen\n capture feature.\n\nCVE-2021-21195\n\n Liu and Liang discovered a use-after-free issue in the v8 javascript\n library.\n\nCVE-2021-21196\n\n Khalil Zhani discovered a buffer overflow issue in the tab implementation.\n\nCVE-2021-21197\n\n Abdulrahman Alqabandi discovered a buffer overflow issue in the tab\n implementation.\n\nCVE-2021-21198\n\n Mark Brand discovered an out-of-bounds read issue in the Inter-Process\n Communication implementation.\n\nCVE-2021-21199\n\n Weipeng Jiang discovered a use-after-free issue in the Aura window and\n event manager.\n\nFor the stable distribution (buster), these problems have been fixed in\nversion 89.0.4389.114-1~deb10u1.\n\nWe recommend that you upgrade your chromium packages.\n\nFor the detailed security status of chromium please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/chromium\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 8.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 5.9}, "published": "2021-04-06T13:38:49", "type": "debian", "title": "[SECURITY] [DSA 4886-1] chromium security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193", "CVE-2021-21194", "CVE-2021-21195", "CVE-2021-21196", "CVE-2021-21197", "CVE-2021-21198", "CVE-2021-21199"], "modified": "2021-04-06T13:38:49", "id": "DEBIAN:DSA-4886-1:8DF2D", "href": "https://lists.debian.org/debian-security-announce/2021/msg00067.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "mageia": [{"lastseen": "2022-04-18T11:19:35", "description": "The updated packages fix security vulnerabilities. At least one of them is known to be actively exploited. \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 5.9}, "published": "2021-03-17T11:01:53", "type": "mageia", "title": "Updated chromium-browser-stable packages fix security vulnerability\n", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "COMPLETE", "integrityImpact": "PARTIAL", "baseScore": 8.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 8.5, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-27844", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21164", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-21190", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193"], "modified": "2021-03-17T11:01:52", "id": "MGASA-2021-0142", "href": "https://advisories.mageia.org/MGASA-2021-0142.html", "cvss": {"score": 8.3, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:C"}}, {"lastseen": "2022-04-18T11:19:35", "description": "Updated qtwebengine5 packages fix security vulnerabilities: The qtwebengine5 package has been updated to version 5.15.5, fixing several security issues in the bundled chromium code. \n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.6, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "REQUIRED"}, "impactScore": 6.0}, "published": "2021-08-15T08:38:04", "type": "mageia", "title": "Updated qtwebengine5 packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-16044", "CVE-2021-21118", "CVE-2021-21119", "CVE-2021-21120", "CVE-2021-21121", "CVE-2021-21122", "CVE-2021-21123", "CVE-2021-21125", "CVE-2021-21126", "CVE-2021-21127", "CVE-2021-21128", "CVE-2021-21129", "CVE-2021-21130", "CVE-2021-21131", "CVE-2021-21132", "CVE-2021-21135", "CVE-2021-21137", "CVE-2021-21140", "CVE-2021-21141", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21156", "CVE-2021-21157"], "modified": "2021-08-15T08:38:03", "id": "MGASA-2021-0406", "href": "https://advisories.mageia.org/MGASA-2021-0406.html", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "googleprojectzero": [{"lastseen": "2022-08-25T01:57:30", "description": "A Year in Review of 0-days Used In-the-Wild in 2021\n\nPosted by Maddie Stone, Google Project Zero\n\nThis is our third annual year in review of 0-days exploited in-the-wild [[2020](<https://googleprojectzero.blogspot.com/2021/02/deja-vu-lnerability.html>), [2019](<https://googleprojectzero.blogspot.com/2020/07/detection-deficit-year-in-review-of-0.html>)]. Each year we\u2019ve looked back at all of the detected and disclosed in-the-wild 0-days as a group and synthesized what we think the trends and takeaways are. The goal of this report is not to detail each individual exploit, but instead to analyze the exploits from the year as a group, looking for trends, gaps, lessons learned, successes, etc. If you\u2019re interested in the analysis of individual exploits, please check out our [root cause analysis repository](<https://googleprojectzero.blogspot.com/p/rca.html>).\n\nWe perform and share this analysis in order to make 0-day hard. We want it to be more costly, more resource intensive, and overall more difficult for attackers to use 0-day capabilities. 2021 highlighted just how important it is to stay relentless in our pursuit to make it harder for attackers to exploit users with 0-days. We heard [over](<https://forbiddenstories.org/about-the-pegasus-project/>) and [over](<https://citizenlab.ca/2021/07/hooking-candiru-another-mercenary-spyware-vendor-comes-into-focus/>) and [over](<https://www.amnesty.org/en/latest/research/2021/11/devices-of-palestinian-human-rights-defenders-hacked-with-nso-groups-pegasus-spyware-2/>) about how governments were targeting journalists, minoritized populations, politicians, human rights defenders, and even security researchers around the world. The decisions we make in the security and tech communities can have real impacts on society and our fellow humans\u2019 lives.\n\nWe\u2019ll provide our evidence and process for our conclusions in the body of this post, and then wrap it all up with our thoughts on next steps and hopes for 2022 in the conclusion. If digging into the bits and bytes is not your thing, then feel free to just check-out the Executive Summary and Conclusion.\n\n# Executive Summary\n\n2021 included the detection and disclosure of 58 in-the-wild 0-days, the most ever recorded since Project Zero began tracking in mid-2014. That\u2019s more than double the previous maximum of 28 detected in 2015 and especially stark when you consider that there were only 25 detected in 2020. We\u2019ve tracked publicly known in-the-wild 0-day exploits in [this spreadsheet](<https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=0>) since mid-2014.\n\nWhile we often talk about the number of 0-day exploits used in-the-wild, what we\u2019re actually discussing is the number of 0-day exploits detected and disclosed as in-the-wild. And that leads into our first conclusion: we believe the large uptick in in-the-wild 0-days in 2021 is due to increased detection and disclosure of these 0-days, rather than simply increased usage of 0-day exploits.\n\nWith this record number of in-the-wild 0-days to analyze we saw that attacker methodology hasn\u2019t actually had to change much from previous years. Attackers are having success using the same bug patterns and exploitation techniques and going after the same attack surfaces. Project Zero\u2019s mission is \u201cmake 0day hard\u201d. 0-day will be harder when, overall, attackers are not able to use public methods and techniques for developing their 0-day exploits. When we look over these 58 0-days used in 2021, what we see instead are 0-days that are similar to previous & publicly known vulnerabilities. Only two 0-days stood out as novel: one for the technical sophistication of its exploit and the other for its use of logic bugs to escape the sandbox.\n\nSo while we recognize the industry\u2019s improvement in the detection and disclosure of in-the-wild 0-days, we also acknowledge that there\u2019s a lot more improving to be done. Having access to more \u201cground truth\u201d of how attackers are actually using 0-days shows us that they are able to have success by using previously known techniques and methods rather than having to invest in developing novel techniques. This is a clear area of opportunity for the tech industry.\n\nWe had so many more data points in 2021 to learn about attacker behavior than we\u2019ve had in the past. Having all this data, though, has left us with even more questions than we had before. Unfortunately, attackers who actively use 0-day exploits do not share the 0-days they\u2019re using or what percentage of 0-days we\u2019re missing in our tracking, so we\u2019ll never know exactly what proportion of 0-days are currently being found and disclosed publicly. \n\nBased on our analysis of the 2021 0-days we hope to see the following progress in 2022 in order to continue taking steps towards making 0-day hard:\n\n 1. All vendors agree to disclose the in-the-wild exploitation status of vulnerabilities in their security bulletins.\n 2. Exploit samples or detailed technical descriptions of the exploits are shared more widely.\n 3. Continued concerted efforts on reducing memory corruption vulnerabilities or rendering them unexploitable.Launch mitigations that will significantly impact the exploitability of memory corruption vulnerabilities.\n\n# A Record Year for In-the-Wild 0-days\n\n2021 was a record year for in-the-wild 0-days. So what happened?\n\n[![bar graph showing the number of in-the-wild 0-day detected per year from 2015-2021. The totals are taken from this tracking spreadsheet: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjC72HVhQEdwHNIzMiyb18bUFr6hPCWJiKL2Mm43-tW11qc0ucOPI8A9oChEXQe0-QNOBF83SIcfyjcyvPveuWvgipbiBzHWqZTx2-LilJFYIbx6uQeno9f481HJQ0CgylQkh8Ks7AbGC6tjhYDNBcI7jh6ihhzJATA0r_P4bQUBm-1lmHp2DPvWM6I/s1200/image1%287%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjC72HVhQEdwHNIzMiyb18bUFr6hPCWJiKL2Mm43-tW11qc0ucOPI8A9oChEXQe0-QNOBF83SIcfyjcyvPveuWvgipbiBzHWqZTx2-LilJFYIbx6uQeno9f481HJQ0CgylQkh8Ks7AbGC6tjhYDNBcI7jh6ihhzJATA0r_P4bQUBm-1lmHp2DPvWM6I/s1200/image1%287%29.png>)\n\nIs it that software security is getting worse? Or is it that attackers are using 0-day exploits more? Or has our ability to detect and disclose 0-days increased? When looking at the significant uptick from 2020 to 2021, we think it's mostly explained by the latter. While we believe there has been a steady growth in interest and investment in 0-day exploits by attackers in the past several years, and that security still needs to urgently improve, it appears that the security industry's ability to detect and disclose in-the-wild 0-day exploits is the primary explanation for the increase in observed 0-day exploits in 2021.\n\nWhile we often talk about \u201c0-day exploits used in-the-wild\u201d, what we\u2019re actually tracking are \u201c0-day exploits detected and disclosed as used in-the-wild\u201d. There are more factors than just the use that contribute to an increase in that number, most notably: detection and disclosure. Better detection of 0-day exploits and more transparently disclosed exploited 0-day vulnerabilities is a positive indicator for security and progress in the industry. \n\nOverall, we can break down the uptick in the number of in-the-wild 0-days into:\n\n * More detection of in-the-wild 0-day exploits\n * More public disclosure of in-the-wild 0-day exploitation\n\n## More detection\n\nIn the [2019 Year in Review](<https://googleprojectzero.blogspot.com/2020/07/detection-deficit-year-in-review-of-0.html>), we wrote about the \u201cDetection Deficit\u201d. We stated \u201cAs a community, our ability to detect 0-days being used in the wild is severely lacking to the point that we can\u2019t draw significant conclusions due to the lack of (and biases in) the data we have collected.\u201d In the last two years, we believe that there\u2019s been progress on this gap. \n\nAnecdotally, we hear from more people that they\u2019ve begun working more on detection of 0-day exploits. Quantitatively, while a very rough measure, we\u2019re also seeing the number of entities credited with reporting in-the-wild 0-days increasing. It stands to reason that if the number of people working on trying to find 0-day exploits increases, then the number of in-the-wild 0-day exploits detected may increase.\n\n[![A bar graph showing the number of distinct reporters of 0-day in-the-wild vulnerabilities per year for 2019-2021. 2019: 9, 2020: 10, 2021: 20. The data is taken from: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMbFpoEKSSn5AbAzsovaZ0yN6_OFXo9u4hpDCXJBpro8LRUWJlVQ9CSqtzT2V9ohrhOvP3_RnrYsOzFGPK0FZGJmW2713g2vVW82ReJVXpjAZc57BCxtHg8i-6AdR_ThDZB6UKvzAKekbmAkuUBliMyDyWSBW87z4ZZQJC3KX-_ptZIHveotLGoJ9I/s1200/image5%284%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiMbFpoEKSSn5AbAzsovaZ0yN6_OFXo9u4hpDCXJBpro8LRUWJlVQ9CSqtzT2V9ohrhOvP3_RnrYsOzFGPK0FZGJmW2713g2vVW82ReJVXpjAZc57BCxtHg8i-6AdR_ThDZB6UKvzAKekbmAkuUBliMyDyWSBW87z4ZZQJC3KX-_ptZIHveotLGoJ9I/s1200/image5%284%29.png>)\n\n[![a line graph showing how many in-the-wild 0-days were found by their own vendor per year from 2015 to 2021. 2015: 0, 2016: 0, 2017: 2, 2018: 0, 2019: 4, 2020: 5, 2021: 17. Data comes from: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRS0t_2Bwvc3U_EIr5h7NcWpQyjzHCPb4OMiDpzPxPs587otAEj8bzwch8UMFlgKchwdSq4L_PXRn1O6KGLHUl4X9voLBdZJNQsgQyJcMCVB4Y8-aRHaXRpOYZw7KVtyNYwdWpwX8ILUV1fyG2kDsXVWORsSPUBGVTON90gWf9POhhxA4edxNe1eoV/s1200/image2%285%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgRS0t_2Bwvc3U_EIr5h7NcWpQyjzHCPb4OMiDpzPxPs587otAEj8bzwch8UMFlgKchwdSq4L_PXRn1O6KGLHUl4X9voLBdZJNQsgQyJcMCVB4Y8-aRHaXRpOYZw7KVtyNYwdWpwX8ILUV1fyG2kDsXVWORsSPUBGVTON90gWf9POhhxA4edxNe1eoV/s1200/image2%285%29.png>)\n\nWe\u2019ve also seen the number of vendors detecting in-the-wild 0-days in their own products increasing. Whether or not these vendors were previously working on detection, vendors seem to have found ways to be more successful in 2021. Vendors likely have the most telemetry and overall knowledge and visibility into their products so it\u2019s important that they are investing in (and hopefully having success in) detecting 0-days targeting their own products. As shown in the chart above, there was a significant increase in the number of in-the-wild 0-days discovered by vendors in their own products. Google discovered 7 of the in-the-wild 0-days in their own products and Microsoft discovered 10 in their products!\n\n## More disclosure\n\nThe second reason why the number of detected in-the-wild 0-days has increased is due to more disclosure of these vulnerabilities. Apple and Google Android (we differentiate \u201cGoogle Android\u201d rather than just \u201cGoogle\u201d because Google Chrome has been annotating their security bulletins for the last few years) first began labeling vulnerabilities in their security advisories with the information about potential in-the-wild exploitation in November 2020 and January 2021 respectively. When vendors don\u2019t annotate their release notes, the only way we know that a 0-day was exploited in-the-wild is if the researcher who discovered the exploitation comes forward. If Apple and Google Android had not begun annotating their release notes, the public would likely not know about at least 7 of the Apple in-the-wild 0-days and 5 of the Android in-the-wild 0-days. Why? Because these vulnerabilities were reported by \u201cAnonymous\u201d reporters. If the reporters didn\u2019t want credit for the vulnerability, it\u2019s unlikely that they would have gone public to say that there were indications of exploitation. That is 12 0-days that wouldn\u2019t have been included in this year\u2019s list if Apple and Google Android had not begun transparently annotating their security advisories. \n\n[![bar graph that shows the number of Android and Apple \$WebKit + iOS + macOS\$ in-the-wild 0-days per year. The bar graph is split into two color: yellow for Anonymously reported 0-days and green for non-anonymous reported 0-days. 2021 is the only year with any anonymously reported 0-days. 2015: 0, 2016: 3, 2018: 2, 2019: 1, 2020: 3, 2021: Non-Anonymous: 8, Anonymous- 12. Data from: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPe_J-0Wu9Ap-0n3Yj5BoXiWTnjViyyGasIChhb3juADZosK9nTbyiaWtzuRyjwG3frQNjLsvRMRoQHrFfo1iKa3GjmcuLHqat40GcoechQ16XbhpVGwF7m_TJ0Oucvy3wvm8x0aXbVnJfhkG2FNkxI4cJf5ONBqEYnPxQDUmZChvByLHE8OzSU20N/s1200/image3%287%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjPe_J-0Wu9Ap-0n3Yj5BoXiWTnjViyyGasIChhb3juADZosK9nTbyiaWtzuRyjwG3frQNjLsvRMRoQHrFfo1iKa3GjmcuLHqat40GcoechQ16XbhpVGwF7m_TJ0Oucvy3wvm8x0aXbVnJfhkG2FNkxI4cJf5ONBqEYnPxQDUmZChvByLHE8OzSU20N/s1200/image3%287%29.png>)\n\nKudos and thank you to Microsoft, Google Chrome, and Adobe who have been annotating their security bulletins for transparency for multiple years now! And thanks to Apache who also annotated their release notes for [CVE-2021-41773](<https://httpd.apache.org/security/vulnerabilities_24.html>) this past year. \n\nIn-the-wild 0-days in Qualcomm and ARM products were annotated as in-the-wild in Android security bulletins, but not in the vendor\u2019s own security advisories.\n\nIt's highly likely that in 2021, there were other 0-days that were exploited in the wild and detected, but vendors did not mention this in their release notes. In 2022, we hope that more vendors start noting when they patch vulnerabilities that have been exploited in-the-wild. Until we\u2019re confident that all vendors are transparently disclosing in-the-wild status, there\u2019s a big question of how many in-the-wild 0-days are discovered, but not labeled publicly by vendors.\n\n# New Year, Old Techniques\n\nWe had a record number of \u201cdata points\u201d in 2021 to understand how attackers are actually using 0-day exploits. A bit surprising to us though, out of all those data points, there was nothing new amongst all this data. 0-day exploits are considered one of the most advanced attack methods an actor can use, so it would be easy to conclude that attackers must be using special tricks and attack surfaces. But instead, the 0-days we saw in 2021 generally followed the same bug patterns, attack surfaces, and exploit \u201cshapes\u201d previously seen in public research. Once \u201c0-day is hard\u201d, we\u2019d expect that to be successful, attackers would have to find new bug classes of vulnerabilities in new attack surfaces using never before seen exploitation methods. In general, that wasn't what the data showed us this year. With two exceptions (described below in the iOS section) out of the 58, everything we saw was pretty \u201c[meh](<https://www.dictionary.com/browse/meh#:~:text=unimpressive%3B%20boring%3A>)\u201d or standard.\n\nOut of the 58 in-the-wild 0-days for the year, 39, or 67% were memory corruption vulnerabilities. Memory corruption vulnerabilities have been the standard for attacking software for the last few decades and it\u2019s still how attackers are having success. Out of these memory corruption vulnerabilities, the majority also stuck with very popular and well-known bug classes:\n\n * 17 use-after-free\n * 6 out-of-bounds read & write\n * 4 buffer overflow\n * 4 integer overflow\n\nIn the next sections we\u2019ll dive into each major platform that we saw in-the-wild 0-days for this year. We\u2019ll share the trends and explain why what we saw was pretty unexceptional.\n\n## Chromium (Chrome)\n\nChromium had a record high number of 0-days detected and disclosed in 2021 with 14. Out of these 14, 10 were renderer remote code execution bugs, 2 were sandbox escapes, 1 was an infoleak, and 1 was used to open a webpage in Android apps other than Google Chrome.\n\nThe 14 0-day vulnerabilities were in the following components:\n\n * 6 JavaScript Engine - v8 ([CVE-2021-21148](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>), [CVE-2021-30551](<https://chromereleases.googleblog.com/2021/02/stable-channel-update-for-desktop_4.html>), [CVE-2021-30563](<https://chromereleases.googleblog.com/2021/07/stable-channel-update-for-desktop.html>), [CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>), [CVE-2021-37975](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-37975.html>), [CVE-2021-38003](<https://chromereleases.googleblog.com/2021/10/stable-channel-update-for-desktop_28.html>))\n * 2 DOM Engine - Blink ([CVE-2021-21193](<https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html>) & [CVE-2021-21206](<https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html>))\n * 1 WebGL ([CVE-2021-30554](<https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html>))\n * 1 IndexedDB ([CVE-2021-30633](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html>))\n * 1 webaudio ([CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>))\n * 1 Portals ([CVE-2021-37973](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_24.html>))\n * 1 Android Intents ([CVE-2021-38000](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-38000.html>))\n * 1 Core ([CVE-2021-37976](<https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_30.html>))\n\nWhen we look at the components targeted by these bugs, they\u2019re all attack surfaces seen before in public security research and previous exploits. If anything, there are a few less DOM bugs and more targeting these other components of browsers like IndexedDB and WebGL than previously. 13 out of the 14 Chromium 0-days were memory corruption bugs. Similar to last year, most of those memory corruption bugs are use-after-free vulnerabilities.\n\nA couple of the Chromium bugs were even similar to previous in-the-wild 0-days. [CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>) is an issue in ScriptProcessorNode::Process() in webaudio where there\u2019s insufficient locks such that buffers are accessible in both the main thread and the audio rendering thread at the same time. [CVE-2019-13720](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2019/CVE-2019-13720.html>) is an in-the-wild 0-day from 2019. It was a vulnerability in ConvolverHandler::Process() in webaudio where there were also insufficient locks such that a buffer was accessible in both the main thread and the audio rendering thread at the same time.\n\n[CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>) is another Chromium in-the-wild 0-day from 2021. It\u2019s a type confusion in the TurboFan JIT in Chromium\u2019s JavaScript Engine, v8, where Turbofan fails to deoptimize code after a property map is changed. [CVE-2021-30632](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30632.html>) in particular deals with code that stores global properties. [CVE-2020-16009](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-16009.html>) was also an in-the-wild 0-day that was due to Turbofan failing to deoptimize code after map deprecation.\n\n## WebKit (Safari)\n\nPrior to 2021, Apple had only acknowledged 1 publicly known in-the-wild 0-day targeting WebKit/Safari, and that was due the sharing by an external researcher. In 2021 there were 7. This makes it hard for us to assess trends or changes since we don\u2019t have historical samples to go off of. Instead, we\u2019ll look at 2021\u2019s WebKit bugs in the context of other Safari bugs not known to be in-the-wild and other browser in-the-wild 0-days. \n\nThe 7 in-the-wild 0-days targeted the following components:\n\n * 4 Javascript Engine - JavaScript Core ([CVE-2021-1870](<https://support.apple.com/en-us/HT212146>), [CVE-2021-1871](<https://support.apple.com/en-us/HT212146>), [CVE-2021-30663](<https://support.apple.com/en-us/HT212336>), [CVE-2021-30665](<https://support.apple.com/en-us/HT212336>))\n * 1 IndexedDB ([CVE-2021-30858](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30858.html>))\n * 1 Storage ([CVE-2021-30661](<https://support.apple.com/en-us/HT212317>))\n * 1 Plugins ([CVE-2021-1879](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1879.html>))\n\nThe one semi-surprise is that no DOM bugs were detected and disclosed. In previous years, vulnerabilities in the DOM engine have generally made up 15-20% of the in-the-wild browser 0-days, but none were detected and disclosed for WebKit in 2021. \n\nIt would not be surprising if attackers are beginning to shift to other modules, like third party libraries or things like IndexedDB. The modules may be more promising to attackers going forward because there\u2019s a better chance that the vulnerability may exist in multiple browsers or platforms. For example, the webaudio bug in Chromium, [CVE-2021-21166](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-21166.html>), also existed in WebKit and was fixed as [CVE-2021-1844](<https://support.apple.com/en-us/HT212223>), though there was no evidence it was exploited in-the-wild in WebKit. The IndexedDB in-the-wild 0-day that was used against Safari in 2021, [CVE-2021-30858](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-30858.html>), was very, very similar to a [bug fixed in Chromium in January 2020](<https://bugs.chromium.org/p/chromium/issues/detail?id=1032890>).\n\n## Internet Explorer\n\nSince we began tracking in-the-wild 0-days, Internet Explorer has had a pretty consistent number of 0-days each year. 2021 actually tied 2016 for the most in-the-wild Internet Explorer 0-days we\u2019ve ever tracked even though Internet Explorer\u2019s market share of web browser users continues to decrease.\n\n[![Bar graph showing the number of Internet Explorer itw 0-days discovered per year from 2015-2021. 2015: 3, 2016: 4, 2017: 3, 2018: 1, 2019: 3, 2020: 2, 2021: 4. Data from: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbMTlnGhVLcVL8K20S3s6hSrpyB6kZAA9CWvWNpn1isbEbLFv0c2rs_dPvM0ALT45NtTvyhp8rGehGDRIAEJ6OZYSkk5mezOEoPJOquVXXyHeqrVOvRGEiQHv_J7Je8Itjc5qhwXMCR-E4y79abuxiddCYoeF2VrVakY-L1q82NeMEPjTA0fFC-t8h/s1200/image4%286%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjbMTlnGhVLcVL8K20S3s6hSrpyB6kZAA9CWvWNpn1isbEbLFv0c2rs_dPvM0ALT45NtTvyhp8rGehGDRIAEJ6OZYSkk5mezOEoPJOquVXXyHeqrVOvRGEiQHv_J7Je8Itjc5qhwXMCR-E4y79abuxiddCYoeF2VrVakY-L1q82NeMEPjTA0fFC-t8h/s1200/image4%286%29.png>)\n\nSo why are we seeing so little change in the number of in-the-wild 0-days despite the change in market share? Internet Explorer is still a ripe attack surface for initial entry into Windows machines, even if the user doesn\u2019t use Internet Explorer as their Internet browser. While the number of 0-days stayed pretty consistent to what we\u2019ve seen in previous years, the components targeted and the delivery methods of the exploits changed. 3 of the 4 0-days seen in 2021 targeted the MSHTML browser engine and were delivered via methods other than the web. Instead they were delivered to targets via Office documents or other file formats. \n\nThe four 0-days targeted the following components:\n\n * MSHTML browser engine ([CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>), [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-33742.html>), [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>))\n * Javascript Engine - JScript9 ([CVE-2021-34448](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34448>))\n\nFor [CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>) targets of the campaign initially received a .mht file, which prompted the user to open in Internet Explorer. Once it was opened in Internet Explorer, the exploit was downloaded and run. [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-33742.html>) and [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>) were delivered to targets via malicious Office documents.\n\n[CVE-2021-26411](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26411.html>) and [CVE-2021-33742](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-33742.html>) were two common memory corruption bug patterns: a use-after-free due to a user controlled callback in between two actions using an object and the user frees the object during that callback and a buffer overflow.\n\nThere were a few different vulnerabilities used in the exploit chain that used [CVE-2021-40444](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-40444>), but the one within MSHTML was that as soon as the Office document was opened the payload would run: a CAB file was downloaded, decompressed, and then a function from within a DLL in that CAB was executed. Unlike the previous two MSHTML bugs, this was a logic error in URL parsing rather than a memory corruption bug.\n\n## Windows\n\nWindows is the platform where we\u2019ve seen the most change in components targeted compared with previous years. However, this shift has generally been in progress for a few years and predicted with the end-of-life of Windows 7 in 2020 and thus why it\u2019s still not especially novel.\n\nIn 2021 there were 10 Windows in-the-wild 0-days targeting 7 different components:\n\n * 2 Enhanced crypto provider ([CVE-2021-31199](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31199>), [CVE-2021-31201](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31201>))\n * 2 NTOS kernel ([CVE-2021-33771](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33771>), [CVE-2021-31979](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31979>))\n * 2 Win32k ([CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>), [CVE-2021-40449](<https://securelist.com/mysterysnail-attacks-with-windows-zero-day/104509/>))\n * 1 Windows update medic ([CVE-2021-36948](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36948>)) \n * 1 SuperFetch ([CVE-2021-31955](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31955>))\n * 1 dwmcore.dll ([CVE-2021-28310](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-28310>))\n * 1 ntfs.sys ([CVE-2021-31956](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31956>))\n\nThe number of different components targeted is the shift from past years. For example, in 2019 75% of Windows 0-days targeted Win32k while in 2021 Win32k only made up 20% of the Windows 0-days. The reason that this was expected and predicted was that 6 out of 8 of those 0-days that targeted Win32k in 2019 did not target the latest release of Windows 10 at that time; they were targeting older versions. With Windows 10 Microsoft began dedicating more and more resources to locking down the attack surface of Win32k so as those older versions have hit end-of-life, Win32k is a less and less attractive attack surface.\n\nSimilar to the many Win32k vulnerabilities seen over the years, the two 2021 Win32k in-the-wild 0-days are due to custom user callbacks. The user calls functions that change the state of an object during the callback and Win32k does not correctly handle those changes. [CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>) is a type confusion vulnerability due to a user callback in xxxClientAllocWindowClassExtraBytes which leads to out-of-bounds read and write. If NtUserConsoleControl is called during the callback a flag is set in the window structure to signal that a field is an offset into the kernel heap. xxxClientAllocWindowClassExtraBytes doesn\u2019t check this and writes that field as a user-mode pointer without clearing the flag. The first in-the-wild 0-day detected and disclosed in 2022, [CVE-2022-21882](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2022/CVE-2022-21882.html>), is due to [CVE-2021-1732](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1732.html>) actually not being fixed completely. The attackers found a way to bypass the original patch and still trigger the vulnerability. [CVE-2021-40449](<https://securelist.com/mysterysnail-attacks-with-windows-zero-day/104509/>) is a use-after-free in NtGdiResetDC due to the object being freed during the user callback. \n\n## iOS/macOS\n\nAs discussed in the \u201cMore disclosure\u201d section above, 2021 was the first full year that Apple annotated their release notes with in-the-wild status of vulnerabilities. 5 iOS in-the-wild 0-days were detected and disclosed this year. The first publicly known macOS in-the-wild 0-day ([CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>)) was also found. In this section we\u2019re going to discuss iOS and macOS together because: 1) the two operating systems include similar components and 2) the sample size for macOS is very small (just this one vulnerability).\n\n[![Bar graph showing the number of macOS and iOS itw 0-days discovered per year. macOs is 0 for every year except 2021 when 1 was discovered. iOS - 2015: 0, 2016: 2, 2017: 0, 2018: 2, 2019: 0, 2020: 3, 2021: 5. Data from: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit#gid=2129022708](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPGaOlQUGIYyvpDY_M0rGh3JekH4mwXHfN459HYcklg74v4Mfp8j6fgh2SM09mjhA4svdgN_TdSN3R5Bb-DJTHnlo63qnRTsvLs1EZgAE3fBpRtsZhxKhyBNTb_khdS6mNT3EtSHnS_R-TshtHx-gSWnEPpHjmSqO_9Y7JxupGcDKZ0-xwsxgbX6zR/s1200/image6%284%29.png)](<https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhPGaOlQUGIYyvpDY_M0rGh3JekH4mwXHfN459HYcklg74v4Mfp8j6fgh2SM09mjhA4svdgN_TdSN3R5Bb-DJTHnlo63qnRTsvLs1EZgAE3fBpRtsZhxKhyBNTb_khdS6mNT3EtSHnS_R-TshtHx-gSWnEPpHjmSqO_9Y7JxupGcDKZ0-xwsxgbX6zR/s1200/image6%284%29.png>)\n\nFor the 5 total iOS and macOS in-the-wild 0-days, they targeted 3 different attack surfaces:\n\n * IOMobileFrameBuffer ([CVE-2021-30807](<https://support.apple.com/en-us/HT212623>), [CVE-2021-30883](<https://support.apple.com/en-us/HT212846>))\n * XNU Kernel ([CVE-2021-1782](<https://support.apple.com/en-us/HT212146>) & [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>))\n * CoreGraphics ([CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>))\n * CommCenter ([FORCEDENTRY sandbox escape](<https://googleprojectzero.blogspot.com/2022/03/forcedentry-sandbox-escape.html>) \\- CVE requested, not yet assigned)\n\nThese 4 attack surfaces are not novel. IOMobileFrameBuffer has been a target of public security research for many years. For example, the Pangu Jailbreak from 2016 used [CVE-2016-4654](<https://www.blackhat.com/docs/us-16/materials/us-16-Wang-Pangu-9-Internals.pdf>), a heap buffer overflow in IOMobileFrameBuffer. IOMobileFrameBuffer manages the screen\u2019s frame buffer. For iPhone 11 (A13) and below, IOMobileFrameBuffer was a kernel driver. Beginning with A14, it runs on a coprocessor, the DCP. It\u2019s a popular attack surface because historically it\u2019s been accessible from sandboxed apps. In 2021 there were two in-the-wild 0-days in IOMobileFrameBuffer. [CVE-2021-30807](<https://support.apple.com/en-us/HT212623>) is an out-of-bounds read and [CVE-2021-30883](<https://support.apple.com/en-us/HT212846>) is an integer overflow, both common memory corruption vulnerabilities. In 2022, we already have another in-the-wild 0-day in IOMobileFrameBuffer, [CVE-2022-22587](<https://support.apple.com/en-us/HT213053>).\n\nOne iOS 0-day and the macOS 0-day both exploited vulnerabilities in the XNU kernel and both vulnerabilities were in code related to XNU\u2019s inter-process communication (IPC) functionality. [CVE-2021-1782](<https://support.apple.com/en-us/HT212146>) exploited a vulnerability in mach vouchers while [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>) exploited a vulnerability in mach messages. This is not the first time we\u2019ve seen iOS in-the-wild 0-days, much less public security research, targeting mach vouchers and mach messages. [CVE-2019-6625](<https://support.apple.com/en-us/HT209443>) was exploited as a part of [an exploit chain targeting iOS 11.4.1-12.1.2](<https://googleprojectzero.blogspot.com/2019/08/in-wild-ios-exploit-chain-5.html>) and was also a [vulnerability in mach vouchers](<https://googleprojectzero.blogspot.com/2019/01/voucherswap-exploiting-mig-reference.html>). \n\nMach messages have also been a popular target for public security research. In 2020 there were two in-the-wild 0-days also in mach messages: [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>) & [CVE-2020-27950](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27950.html>). This year\u2019s [CVE-2021-30869](<https://blog.google/threat-analysis-group/analyzing-watering-hole-campaign-using-macos-exploits/>) is a pretty close variant to 2020\u2019s [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>). Tielei Wang and Xinru Chi actually [presented on this vulnerability at zer0con 2021](<https://github.com/wangtielei/Slides/blob/main/zer0con21.pdf>) in April 2021. In their presentation, they explained that they found it while doing variant analysis on [CVE-2020-27932](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2020/CVE-2020-27932.html>). [TieLei Wang explained via Twitter](<https://twitter.com/WangTielei/status/1486266258152726530>) that they had found the vulnerability in December 2020 and had noticed it was fixed in beta versions of iOS 14.4 and macOS 11.2 which is why they presented it at Zer0Con. The in-the-wild exploit only targeted macOS 10, but used the same exploitation technique as the one presented.\n\nThe two FORCEDENTRY exploits ([CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>) and the [sandbox escape](<https://googleprojectzero.blogspot.com/2022/03/forcedentry-sandbox-escape.html>)) were the only times that made us all go \u201cwow!\u201d this year. For [CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), the integer overflow in CoreGraphics, it was because: \n\n 1. For years we\u2019ve all heard about how attackers are using 0-click iMessage bugs and finally we have a public example, and\n 2. The exploit was an impressive work of art. \n\nThe sandbox escape (CVE requested, not yet assigned) was impressive because it\u2019s one of the few times we\u2019ve seen a sandbox escape in-the-wild that uses only logic bugs, rather than the standard memory corruption bugs. \n\nFor [CVE-2021-30860](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), the vulnerability itself wasn\u2019t especially notable: a classic integer overflow within the JBIG2 parser of the CoreGraphics PDF decoder. The exploit, though, was described by Samuel Gro\u00df & Ian Beer as \u201cone of the most technically sophisticated exploits [they]\u2019ve ever seen\u201d. [Their blogpost shares all the details](<https://googleprojectzero.blogspot.com/2021/12/a-deep-dive-into-nso-zero-click.html>), but the highlight is that the exploit uses the logical operators available in JBIG2 to build NAND gates which are used to build its own computer architecture. The exploit then writes the rest of its exploit using that new custom architecture. From their blogpost:\n\nUsing over 70,000 segment commands defining logical bit operations, they define a small computer architecture with features such as registers and a full 64-bit adder and comparator which they use to search memory and perform arithmetic operations. It's not as fast as Javascript, but it's fundamentally computationally equivalent.\n\nThe bootstrapping operations for the sandbox escape exploit are written to run on this logic circuit and the whole thing runs in this weird, emulated environment created out of a single decompression pass through a JBIG2 stream. It's pretty incredible, and at the same time, pretty terrifying.\n\nThis is an example of what making 0-day exploitation hard could look like: attackers having to develop a new and novel way to exploit a bug and that method requires lots of expertise and/or time to develop. This year, the two FORCEDENTRY exploits were the only 0-days out of the 58 that really impressed us. Hopefully in the future, the bar has been raised such that this will be required for any successful exploitation.\n\n## Android\n\nThere were 7 Android in-the-wild 0-days detected and disclosed this year. Prior to 2021 there had only been 1 and it was in 2019: [CVE-2019-2215](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2019/CVE-2019-2215.html>). Like WebKit, this lack of data makes it hard for us to assess trends and changes. Instead, we\u2019ll compare it to public security research.\n\nFor the 7 Android 0-days they targeted the following components:\n\n * Qualcomm Adreno GPU driver ([CVE-2020-11261](<https://source.android.com/security/bulletin/2021-01-01>), [CVE-2021-1905](<https://googleprojectzero.github.io/0days-in-the-wild/0day-RCAs/2021/CVE-2021-1905.html>), [CVE-2021-1906](<https://source.android.com/security/bulletin/2021-05-01>))\n * ARM Mali GPU driver ([CVE-2021-28663](<https://source.android.com/security/bulletin/2021-05-01>), [CVE-2021-28664](<https://source.android.com/security/bulletin/2021-05-01>))\n * Upstream Linux kernel ([CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>), [CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>))\n\n5 of the 7 0-days from 2021 targeted GPU drivers. This is actually not that surprising when we consider the evolution of the Android ecosystem as well as recent public security research into Android. The Android ecosystem is quite fragmented: many different kernel versions, different manufacturer customizations, etc. If an attacker wants a capability against \u201cAndroid devices\u201d, they generally need to maintain many different exploits to have a decent percentage of the Android ecosystem covered. However, if the attacker chooses to target the GPU kernel driver instead of another component, they will only need to have two exploits since most Android devices use 1 of 2 GPUs: either the Qualcomm Adreno GPU or the ARM Mali GPU. \n\nPublic security research mirrored this choice in the last couple of years as well. When developing full exploit chains (for defensive purposes) to target Android devices, [Guang Gong](<https://github.com/secmob/TiYunZong-An-Exploit-Chain-to-Remotely-Root-Modern-Android-Devices/blob/master/us-20-Gong-TiYunZong-An-Exploit-Chain-to-Remotely-Root-Modern-Android-Devices-wp.pdf>), [Man Yue Mo](<https://securitylab.github.com/research/one_day_short_of_a_fullchain_android/>), and [Ben Hawkes](<https://googleprojectzero.blogspot.com/2020/09/attacking-qualcomm-adreno-gpu.html>) all chose to attack the GPU kernel driver for local privilege escalation. Seeing the in-the-wild 0-days also target the GPU was more of a confirmation rather than a revelation. Of the 5 0-days targeting GPU drivers, 3 were in the Qualcomm Adreno driver and 2 in the ARM Mali driver. \n\nThe two non-GPU driver 0-days ([CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>) and [CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>)) targeted the upstream Linux kernel. Unfortunately, these 2 bugs shared a singular characteristic with the Android in-the-wild 0-day seen in 2019: all 3 were previously known upstream before their exploitation in Android. While the sample size is small, it\u2019s still quite striking to see that 100% of the known in-the-wild Android 0-days that target the kernel are bugs that actually were known about before their exploitation.\n\nThe vulnerability now referred to as [CVE-2021-0920](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>) was actually found in September 2016 and [discussed on the Linux kernel mailing lists](<https://lore.kernel.org/lkml/CAOssrKcfncAYsQWkfLGFgoOxAQJVT2hYVWdBA6Cw7hhO8RJ_wQ@mail.gmail.com/>). A [patch was even developed back in 2016](<https://lore.kernel.org/lkml/1475150954-10152-1-git-send-email-mszeredi@redhat.com/>), but it didn\u2019t end up being submitted. The bug was finally [fixed in the Linux kernel in July 2021](<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbcf01128d0a92e131bd09f1688fe032480b65ca>) after the detection of the in-the-wild exploit targeting Android. The patch then made it into the [Android security bulletin in November 2021](<https://source.android.com/security/bulletin/2021-11-01#kernel-components>).\n\n[CVE-2021-1048](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-1048.html>) remained unpatched in Android for 14 months after it was patched in the Linux kernel. The Linux kernel was actually only vulnerable to the issue for a few weeks, but due to Android patching practices, that few weeks became almost a year for some Android devices. If an Android OEM synced to the upstream kernel, then they likely were patched against the vulnerability at some point. But many devices, such as recent Samsung devices, had not and thus were left vulnerable.\n\n## Microsoft Exchange Server\n\nIn 2021, there were 5 in-the-wild 0-days targeting Microsoft Exchange Server. This is the first time any Exchange Server in-the-wild 0-days have been detected and disclosed since we began tracking in-the-wild 0-days. The first four ([CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>), [CVE-2021-26857](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26857>), [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>), and [CVE-2021-27065](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27065>)) were all disclosed and patched at the same time and used together in a [single operation](<https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/>). The fifth ([CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>)) was patched on its own in November 2021. [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>) was demonstrated at Tianfu Cup and then discovered in-the-wild by Microsoft. While no other in-the-wild 0-days were disclosed as part of the chain with [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>), the attackers would have required at least another 0-day for successful exploitation since [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>) is a post-authentication bug.\n\nOf the four Exchange in-the-wild 0-days used in the first campaign, [CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>), which is also known as \u201cProxyLogon\u201d, is the only one that\u2019s pre-auth. [CVE-2021-26855](<https://googleprojectzero.github.io/0days-in-the-wild//0day-RCAs/2021/CVE-2021-26855.html>) is a server side request forgery (SSRF) vulnerability that allows unauthenticated attackers to send arbitrary HTTP requests as the Exchange server. The other three vulnerabilities were post-authentication. For example, [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>) and [CVE-2021-27065](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27065>) allowed attackers to write arbitrary files to the system. [CVE-2021-26857](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26857>) is a remote code execution vulnerability due to a deserialization bug in the Unified Messaging service. This allowed attackers to run code as the privileged SYSTEM user.\n\nFor the second campaign, [CVE-2021-42321](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-42321>), like [CVE-2021-26858](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26858>), is a post-authentication RCE vulnerability due to insecure deserialization. It seems that while attempting to harden Exchange, Microsoft inadvertently introduced another deserialization vulnerability.\n\nWhile there were a significant amount of 0-days in Exchange detected and disclosed in 2021, it\u2019s important to remember that they were all used as 0-day in only two different campaigns. This is an example of why we don\u2019t suggest using the number of 0-days in a product as a metric to assess the security of a product. Requiring the use of four 0-days for attackers to have success is preferable to an attacker only needing one 0-day to successfully gain access.\n\nWhile this is the first time Exchange in-the-wild 0-days have been detected and disclosed since Project Zero began our tracking, this is not unexpected. In 2020 there was [n-day exploitation of Exchange Servers](<https://www.cisa.gov/uscert/ncas/current-activity/2020/03/10/unpatched-microsoft-exchange-servers-vulnerable-cve-2020-0688>). Whether this was the first year that attackers began the 0-day exploitation or if this was the first year that defenders began detecting the 0-day exploitation, this is not an unexpected evolution and we\u2019ll likely see it continue into 2022.\n\n# Outstanding Questions\n\nWhile there has been progress on detection and disclosure, that progress has shown just how much work there still is to do. The more data we gained, the more questions that arose about biases in detection, what we\u2019re missing and why, and the need for more transparency from both vendors and researchers.\n\nUntil the day that attackers decide to happily share all their exploits with us, we can\u2019t fully know what percentage of 0-days are publicly known about. However when we pull together our expertise as security researchers and anecdotes from others in the industry, it paints a picture of some of the data we\u2019re very likely missing. From that, these are some of the key questions we\u2019re asking ourselves as we move into 2022:\n\n## Where are the [x] 0-days?\n\nDespite the number of 0-days found in 2021, there are key targets missing from the 0-days discovered. For example, we know that messaging applications like WhatsApp, Signal, Telegram, etc. are targets of interest to attackers and yet there\u2019s only 1 messaging app, in this case iMessage, 0-day found this past year. Since we began tracking in mid-2014 the total is two: a WhatsApp 0-day in 2019 and this iMessage 0-day found in 2021.\n\nAlong with messaging apps, there are other platforms/targets we\u2019d expect to see 0-days targeting, yet there are no or very few public examples. For example, since mid-2014 there\u2019s only one in-the-wild 0-day each for macOS and Linux. There are no known in-the-wild 0-days targeting cloud, CPU vulnerabilities, or other phone components such as the WiFi chip or the baseband.\n\nThis leads to the question of whether these 0-days are absent due to lack of detection, lack of disclosure, or both?\n\n## Do some vendors have no known in-the-wild 0-days because they\u2019ve never been found or because they don\u2019t publicly disclose?\n\nUnless a vendor has told us that they will publicly disclose exploitation status for all vulnerabilities in their platforms, we, the public, don\u2019t know if the absence of an annotation means that there is no known exploitation of a vulnerability or if there is, but the vendor is just not sharing that information publicly. Thankfully this question is something that has a pretty clear solution: all device and software vendors agreeing to publicly disclose when there is evidence to suggest that a vulnerability in their product is being exploited in-the-wild.\n\n## Are we seeing the same bug patterns because that\u2019s what we know how to detect?\n\nAs we described earlier in this report, all the 0-days we saw in 2021 had similarities to previously seen vulnerabilities. This leads us to wonder whether or not that\u2019s actually representative of what attackers are using. Are attackers actually having success exclusively using vulnerabilities in bug classes and components that are previously public? Or are we detecting all these 0-days with known bug patterns because that\u2019s what we know how to detect? Public security research would suggest that yes, attackers are still able to have success with using vulnerabilities in known components and bug classes the majority of the time. But we\u2019d still expect to see a few novel and unexpected vulnerabilities in the grouping. We posed this question back in the 2019 year-in-review and it still lingers. \n\n## Where are the spl0itz?\n\nTo successfully exploit a vulnerability there are two key pieces that make up that exploit: the vulnerability being exploited, and the exploitation method (how that vulnerability is turned into something useful). \n\nUnfortunately, this report could only really analyze one of these components: the vulnerability. Out of the 58 0-days, only 5 have an exploit sample publicly available. Discovered in-the-wild 0-days are the failure case for attackers and a key opportunity for defenders to learn what attackers are doing and make it harder, more time-intensive, more costly, to do it again. Yet without the exploit sample or a detailed technical write-up based upon the sample, we can only focus on fixing the vulnerability rather than also mitigating the exploitation method. This means that attackers are able to continue to use their existing exploit methods rather than having to go back to the design and development phase to build a new exploitation method. While acknowledging that sharing exploit samples can be challenging (we have that challenge too!), we hope in 2022 there will be more sharing of exploit samples or detailed technical write-ups so that we can come together to use every possible piece of information to make it harder for the attackers to exploit more users.\n\nAs an aside, if you have an exploit sample that you\u2019re willing to share with us, please reach out. Whether it\u2019s sharing with us and having us write a detailed technical description and analysis or having us share it publicly, we\u2019d be happy to work with you.\n\n# Conclusion\n\nLooking back on 2021, what comes to mind is \u201cbaby steps\u201d. We can see clear industry improvement in the detection and disclosure of 0-day exploits. But the better detection and disclosure has highlighted other opportunities for progress. As an industry we\u2019re not making 0-day hard. Attackers are having success using vulnerabilities similar to what we\u2019ve seen previously and in components that have previously been discussed as attack surfaces.The goal is to force attackers to start from scratch each time we detect one of their exploits: they\u2019re forced to discover a whole new vulnerability, they have to invest the time in learning and analyzing a new attack surface, they must develop a brand new exploitation method. And while we made distinct progress in detection and disclosure it has shown us areas where that can continue to improve.\n\nWhile this all may seem daunting, the promising part is that we\u2019ve done it before: we have made clear progress on previously daunting goals. In 2019, we discussed the large detection deficit for 0-day exploits and 2 years later more than double were detected and disclosed. So while there is still plenty more work to do, it\u2019s a tractable problem. There are concrete steps that the tech and security industries can take to make it even more progress: \n\n\n 1. Make it an industry standard behavior for all vendors to publicly disclose when there is evidence to suggest that a vulnerability in their product is being exploited,\n 2. Vendors and security researchers sharing exploit samples or detailed descriptions of the exploit techniques.\n 3. Continued concerted efforts on reducing memory corruption vulnerabilities or rendering them unexploitable.\n\nThrough 2021 we continually saw the real world impacts of the use of 0-day exploits against users and entities. Amnesty International, the Citizen Lab, and others highlighted [over](<https://citizenlab.ca/2021/10/breaking-news-new-york-times-journalist-ben-hubbard-pegasus/>) and [over](<https://www.amnesty.org/en/documents/doc10/4491/2021/en/>) how governments were using commercial surveillance products against [journalists](<https://forbiddenstories.org/pegasus-the-new-global-weapon-for-silencing-journalists/>), [human rights defenders](<https://www.amnesty.org/en/latest/research/2021/11/devices-of-palestinian-human-rights-defenders-hacked-with-nso-groups-pegasus-spyware-2/>), and [government officials](<https://www.reuters.com/technology/exclusive-us-state-department-phones-hacked-with-israeli-company-spyware-sources-2021-12-03/>). We saw many enterprises scrambling to remediate and protect themselves from the [Exchange Server 0-days](<https://www.microsoft.com/security/blog/2021/03/02/hafnium-targeting-exchange-servers/>). And we even learned of peer [security researchers being targeted by ](<https://blog.google/threat-analysis-group/update-campaign-targeting-security-researchers/>)[North Korean government hackers](<https://blog.google/threat-analysis-group/update-campaign-targeting-security-researchers/>). While the majority of people on the planet do not need to worry about their own personal risk of being targeted with 0-days, 0-day exploitation still affects us all. These 0-days tend to have an outsized impact on society so we need to continue doing whatever we can to make it harder for attackers to be successful in these attacks.\n\n2021 showed us we\u2019re on the right track and making progress, but there\u2019s plenty more to be done to make 0-day hard.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-04-19T00:00:00", "type": "googleprojectzero", "title": "\nThe More You Know, The More You Know You Don\u2019t Know\n", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-4654", "CVE-2019-13720", "CVE-2019-2215", "CVE-2019-6625", "CVE-2020-0688", "CVE-2020-11261", "CVE-2020-16009", "CVE-2020-27932", "CVE-2020-27950", "CVE-2021-0920", "CVE-2021-1048", "CVE-2021-1732", "CVE-2021-1782", "CVE-2021-1844", "CVE-2021-1870", "CVE-2021-1871", "CVE-2021-1879", "CVE-2021-1905", "CVE-2021-1906", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27065", "CVE-2021-28310", "CVE-2021-28663", "CVE-2021-28664", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-30661", "CVE-2021-30663", "CVE-2021-30665", "CVE-2021-30737", "CVE-2021-30807", "CVE-2021-30858", "CVE-2021-30860", "CVE-2021-30869", "CVE-2021-30883", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33742", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-36948", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-40444", "CVE-2021-40449", "CVE-2021-41773", "CVE-2021-42321", "CVE-2022-21882", "CVE-2022-22587"], "modified": "2022-04-19T00:00:00", "id": "GOOGLEPROJECTZERO:CA925EE6A931620550EF819815B14156", "href": "https://googleprojectzero.blogspot.com/2022/04/the-more-you-know-more-you-know-you.html", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "gentoo": [{"lastseen": "2022-01-17T18:59:29", "description": "### Background\n\nChromium is an open-source browser project that aims to build a safer, faster, and more stable way for all users to experience the web. \n\nGoogle Chrome is one fast, simple, and secure browser for all your devices. \n\n### Description\n\nMultiple vulnerabilities have been discovered in Chromium and Google Chrome. Please review the CVE identifiers referenced below for details. \n\n### Impact\n\nPlease review the referenced CVE identifiers for details.\n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll Chromium users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose\n \">=www-client/chromium-90.0.4430.93\"\n \n\nAll Google Chrome users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose\n \">=www-client/google-chrome-90.0.4430.93\"", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H", "userInteraction": "REQUIRED", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-04-30T00:00:00", "type": "gentoo", "title": "Chromium, Google Chrome: Multiple vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": true, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 6.8, "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148", "CVE-2021-21149", "CVE-2021-21150", "CVE-2021-21151", "CVE-2021-21152", "CVE-2021-21153", "CVE-2021-21154", "CVE-2021-21155", "CVE-2021-21156", "CVE-2021-21157", "CVE-2021-21159", "CVE-2021-21160", "CVE-2021-21161", "CVE-2021-21162", "CVE-2021-21163", "CVE-2021-21165", "CVE-2021-21166", "CVE-2021-21167", "CVE-2021-21168", "CVE-2021-21169", "CVE-2021-21170", "CVE-2021-21171", "CVE-2021-21172", "CVE-2021-21173", "CVE-2021-21174", "CVE-2021-21175", "CVE-2021-21176", "CVE-2021-21177", "CVE-2021-21178", "CVE-2021-21179", "CVE-2021-21180", "CVE-2021-21181", "CVE-2021-21182", "CVE-2021-21183", "CVE-2021-21184", "CVE-2021-21185", "CVE-2021-21186", "CVE-2021-21187", "CVE-2021-21188", "CVE-2021-21189", "CVE-2021-2119", "CVE-2021-21191", "CVE-2021-21192", "CVE-2021-21193", "CVE-2021-21194", "CVE-2021-21195", "CVE-2021-21196", "CVE-2021-21197", "CVE-2021-21198", "CVE-2021-21199", "CVE-2021-21201", "CVE-2021-21202", "CVE-2021-21203", "CVE-2021-21204", "CVE-2021-21205", "CVE-2021-21206", "CVE-2021-21207", "CVE-2021-21208", "CVE-2021-21209", "CVE-2021-21210", "CVE-2021-21211", "CVE-2021-21212", "CVE-2021-21213", "CVE-2021-21214", "CVE-2021-21215", "CVE-2021-21216", "CVE-2021-21217", "CVE-2021-21218", "CVE-2021-21219", "CVE-2021-21220", "CVE-2021-21221", "CVE-2021-21222", "CVE-2021-21223", "CVE-2021-21224", "CVE-2021-21225", "CVE-2021-21226", "CVE-2021-21227", "CVE-2021-21228", "CVE-2021-21229", "CVE-2021-21230", "CVE-2021-21231", "CVE-2021-21232", "CVE-2021-21233"], "modified": "2021-04-30T00:00:00", "id": "GLSA-202104-08", "href": "https://security.gentoo.org/glsa/202104-08", "cvss": {"score": 6.8, "vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P"}}], "qualysblog": [{"lastseen": "2021-11-09T06:36:02", "description": "[Start your VMDR 30-day, no-cost trial today](<https://www.qualys.com/forms/vmdr/>)\n\n## Overview\n\nOn November 3, 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a [Binding Operational Directive 22-01](<https://cyber.dhs.gov/bod/22-01/>), "Reducing the Significant Risk of Known Exploited Vulnerabilities." [This directive](<https://www.cisa.gov/news/2021/11/03/cisa-releases-directive-reducing-significant-risk-known-exploited-vulnerabilities>) recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of known exploited vulnerabilities that carry significant risk to the federal government and establishes requirements for agencies to remediate these vulnerabilities.\n\nThis directive requires agencies to review and update agency internal vulnerability management procedures within 60 days according to this directive and remediate each vulnerability according to the timelines outlined in 'CISA's vulnerability catalog.\n\nQualys helps customers to identify and assess risk to organizations' digital infrastructure and automate remediation. Qualys' guidance for rapid response to Operational Directive is below.\n\n## Directive Scope\n\nThis directive applies to all software and hardware found on federal information systems managed on agency premises or hosted by third parties on an agency's behalf.\n\nHowever, CISA strongly recommends that private businesses and state, local, tribal, and territorial (SLTT) governments prioritize the mitigation of vulnerabilities listed in CISA's public catalog.\n\n## CISA Catalog of Known Exploited Vulnerabilities\n\nIn total, CISA posted a list of [291 Common Vulnerabilities and Exposures (CVEs)](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) that pose the highest risk to federal agencies. The Qualys Research team has mapped all these CVEs to applicable QIDs. You can view the complete list of CVEs and the corresponding QIDs [here](<https://success.qualys.com/discussions/s/article/000006791>).\n\n### Not all vulnerabilities are created equal\n\nOur quick review of the 291 CVEs posted by CISA suggests that not all vulnerabilities hold the same priority. CISA has ordered U.S. federal enterprises to apply patches as soon as possible. The remediation guidance can be grouped into three distinct categories:\n\n#### Category 1 \u2013 Past Due\n\nRemediation of 15 CVEs (~5%) are already past due. These vulnerabilities include some of the most significant exploits in the recent past, including PrintNightmare, SigRed, ZeroLogon, and vulnerabilities in CryptoAPI, Pulse Secure, and more. Qualys Patch Management can help you remediate most of these vulnerabilities.\n\n#### Category 2 \u2013 Patch in less than two weeks\n\n100 (34%) Vulnerabilities need to be patched in the next two weeks, or by **November 17, 2022**.\n\n#### Category 3 \u2013 Patch within six months\n\nThe remaining 176 vulnerabilities (60%) must be patched within the next six months or by **May 3, 2022**.\n\n## Detect CISA's Vulnerabilities Using Qualys VMDR\n\nThe Qualys Research team has released several remote and authenticated detections (QIDs) for the vulnerabilities. Since the directive includes 291 CVEs, we recommend executing your search based on vulnerability criticality, release date, or other categories.\n\nFor example, to detect critical CVEs released in 2021:\n\n_vulnerabilities.vulnerability.criticality:CRITICAL and vulnerabilities.vulnerability.cveIds:[ `CVE-2021-1497`,`CVE-2021-1498`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-1782`,`CVE-2021-1870`,`CVE-2021-1871`,`CVE-2021-1879`,`CVE-2021-1905`,`CVE-2021-1906`,`CVE-2021-20016`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-21972`,`CVE-2021-21985`,`CVE-2021-22005`,`CVE-2021-22205`,`CVE-2021-22502`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-22986`,`CVE-2021-26084`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-27101`,`CVE-2021-27102`,`CVE-2021-27103`,`CVE-2021-27104`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-28663`,`CVE-2021-28664`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-30657`,`CVE-2021-30661`,`CVE-2021-30663`,`CVE-2021-30665`,`CVE-2021-30666`,`CVE-2021-30713`,`CVE-2021-30761`,`CVE-2021-30762`,`CVE-2021-30807`,`CVE-2021-30858`,`CVE-2021-30860`,`CVE-2021-30860`,`CVE-2021-30869`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40444`,`CVE-2021-40539`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42258` ]_\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture1.jpg)\n\nUsing [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>), you can effectively prioritize those vulnerabilities using the VMDR Prioritization report.\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture2.jpg)\n\nIn addition, you can locate a vulnerable host through Qualys Threat Protection by simply clicking on the impacted hosts to effectively identify and track this vulnerability.\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture3.png)\n\nWith Qualys Unified Dashboard, you can track your exposure to the CISA Known Exploited Vulnerabilities and gather your status and overall management in real-time. With trending enabled for dashboard widgets, you can keep track of the status of the vulnerabilities in your environment using the ["CISA 2010-21| KNOWN EXPLOITED VULNERABILITIES"](<https://success.qualys.com/support/s/article/000006791>) Dashboard.\n\n### Detailed Operational Dashboard:\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture4.png)\n\n### Summary Dashboard High Level Structured by Vendor:\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture5.png)\n\n## Remediation\n\nTo comply with this directive, federal agencies must remediate most "Category 2" vulnerabilities by **November 17, 2021**, and "Category 3" by May 3, 2021. Qualys Patch Management can help streamline the remediation of many of these vulnerabilities.\n\nCustomers can copy the following query into the Patch Management app to help customers comply with the directive's aggressive remediation date of November 17, 2021. Running this query will find all required patches and allow quick and efficient deployment of those missing patches to all assets directly from within the Qualys Cloud Platform.\n\ncve:[`CVE-2021-1497`,`CVE-2021-1498`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-1782`,`CVE-2021-1870`,`CVE-2021-1871`,`CVE-2021-1879`,`CVE-2021-1905`,`CVE-2021-1906`,`CVE-2021-20016`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-21972`,`CVE-2021-21985`,`CVE-2021-22005`,`CVE-2021-22205`,`CVE-2021-22502`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-22986`,`CVE-2021-26084`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-27101`,`CVE-2021-27102`,`CVE-2021-27103`,`CVE-2021-27104`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-28663`,`CVE-2021-28664`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-30657`,`CVE-2021-30661`,`CVE-2021-30663`,`CVE-2021-30665`,`CVE-2021-30666`,`CVE-2021-30713`,`CVE-2021-30761`,`CVE-2021-30762`,`CVE-2021-30807`,`CVE-2021-30858`,`CVE-2021-30860`,`CVE-2021-30860`,`CVE-2021-30869`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40444`,`CVE-2021-40539`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42258` ]\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture6.jpg)\n\nQualys patch content covers many Microsoft, Linux, and third-party applications; however, some of the vulnerabilities introduced by CISA are not currently supported out-of-the-box by Qualys. To remediate those vulnerabilities, Qualys provides the ability to deploy custom patches. The flexibility to customize patch deployment allows customers to patch the remaining CVEs in this list.\n\nNote that the due date for \u201cCategory 1\u201d patches has already passed. To find missing patches in your environment for \u201cCategory 1\u201d past due CVEs, copy the following query into the Patch Management app:\n\ncve:['CVE-2021-1732\u2032,'CVE-2020-1350\u2032,'CVE-2020-1472\u2032,'CVE-2021-26855\u2032,'CVE-2021-26858\u2032,'CVE-2021-27065\u2032,'CVE-2020-0601\u2032,'CVE-2021-26857\u2032,'CVE-2021-22893\u2032,'CVE-2020-8243\u2032,'CVE-2021-22900\u2032,'CVE-2021-22894\u2032,'CVE-2020-8260\u2032,'CVE-2021-22899\u2032,'CVE-2019-11510']\n\n![](https://blog.qualys.com/wp-content/uploads/2021/11/Picture7.jpg)\n\n## Federal Enterprises and Agencies Can Act Now\n\nFor federal enterprises and agencies, it's a race against time to remediate these vulnerabilities across their respective environments and achieve compliance with this binding directive. Qualys solutions can help achieve compliance with this binding directive. Qualys Cloud Platform is FedRAMP authorized, with [107 FedRAMP authorizations](<https://marketplace.fedramp.gov/#!/product/qualys-cloud-platform?sort=-authorizations>).\n\nHere are a few steps Federal enterprises can take immediately:\n\n * Run vulnerability assessments against all your assets by leveraging various sensors such as Qualys agent, scanners, and more\n * Prioritize remediation by due dates\n * Identify all vulnerable assets automatically mapped into the threat feed\n * Use Patch Management to apply patches and other configurations changes\n * Track remediation progress through Unified Dashboards\n\n## Summary\n\nUnderstanding vulnerabilities is a critical but partial part of threat mitigation. Qualys VMDR helps customers discover, assess threats, assign risk, and remediate threats in one solution. Qualys customers rely on the accuracy of Qualys' threat intelligence to protect their digital environments and stay current with patch guidance. Using Qualys VMDR can help any organization efficiently respond to the CISA directive.\n\n## Getting Started\n\nLearn how [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>) provides actionable vulnerability guidance and automates remediation in one solution. Ready to get started? Sign up for a 30-day, no-cost [VMDR trial](<https://www.qualys.com/forms/vmdr/>).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2021-11-09T06:15:01", "type": "qualysblog", "title": "Qualys Response to CISA Alert: Binding Operational Directive 22-01", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-11510", "CVE-2020-0601", "CVE-2020-1350", "CVE-2020-1472", "CVE-2020-8243", "CVE-2020-8260", "CVE-2021-1497", "CVE-2021-1498", "CVE-2021-1647", "CVE-2021-1675", "CVE-2021-1732", "CVE-2021-1782", "CVE-2021-1870", "CVE-2021-1871", "CVE-2021-1879", "CVE-2021-1905", "CVE-2021-1906", "CVE-2021-20016", "CVE-2021-21017", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-21972", "CVE-2021-21985", "CVE-2021-22005", "CVE-2021-22205", "CVE-2021-22502", "CVE-2021-22893", "CVE-2021-22894", "CVE-2021-22899", "CVE-2021-22900", "CVE-2021-22986", "CVE-2021-26084", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27059", "CVE-2021-27065", "CVE-2021-27085", "CVE-2021-27101", "CVE-2021-27102", "CVE-2021-27103", "CVE-2021-27104", "CVE-2021-28310", "CVE-2021-28550", "CVE-2021-28663", "CVE-2021-28664", "CVE-2021-30116", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-30657", "CVE-2021-30661", "CVE-2021-30663", "CVE-2021-30665", "CVE-2021-30666", "CVE-2021-30713", "CVE-2021-30761", "CVE-2021-30762", "CVE-2021-30807", "CVE-2021-30858", "CVE-2021-30860", "CVE-2021-30869", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31207", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33739", "CVE-2021-33742", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-34473", "CVE-2021-34523", "CVE-2021-34527", "CVE-2021-35211", "CVE-2021-36741", "CVE-2021-36742", "CVE-2021-36942", "CVE-2021-36948", "CVE-2021-36955", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-38645", "CVE-2021-38647", "CVE-2021-38648", "CVE-2021-38649", "CVE-2021-40444", "CVE-2021-40539", "CVE-2021-41773", "CVE-2021-42013", "CVE-2021-42258"], "modified": "2021-11-09T06:15:01", "id": "QUALYSBLOG:BC22CE22A3E70823D5F0E944CBD5CE4A", "href": "https://blog.qualys.com/category/vulnerabilities-threat-research", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-02-25T19:27:09", "description": "_CISA released a directive in November 2021, recommending urgent and prioritized remediation of actively exploited vulnerabilities. Both government agencies and corporations should heed this advice. This blog outlines how Qualys Vulnerability Management, Detection & Response can be used by any organization to respond to this directive efficiently and effectively._\n\n### Situation\n\nLast November 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a [Binding Operational Directive 22-01](<https://cyber.dhs.gov/bod/22-01/>) called \u201cReducing the Significant Risk of Known Exploited Vulnerabilities.\u201d [This directive](<https://www.cisa.gov/news/2021/11/03/cisa-releases-directive-reducing-significant-risk-known-exploited-vulnerabilities>) recommends urgent and prioritized remediation of the vulnerabilities that adversaries are actively exploiting. It establishes a CISA-managed catalog of Known Exploited Vulnerabilities that carry significant risk to the federal government and sets requirements for agencies to remediate these vulnerabilities.\n\nThis directive requires federal agencies to review and update internal vulnerability management procedures to remediate each vulnerability according to the timelines outlined in CISA\u2019s vulnerability catalog.\n\n### Directive Scope\n\nThis CISA directive applies to all software and hardware found on federal information systems managed on agency premises or hosted by third parties on an agency\u2019s behalf.\n\nHowever, CISA strongly recommends that public and private businesses as well as state, local, tribal, and territorial (SLTT) governments prioritize the mitigation of vulnerabilities listed in CISA\u2019s public catalog. This is truly vulnerability management guidance for all organizations to heed.\n\n### CISA Catalog of Known Exploited Vulnerabilities\n\nIn total, CISA posted a list of [379 Common Vulnerabilities and Exposures (CVEs)](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) that pose the highest risk to federal agencies. CISA\u2019s most recent update was issued on February 22, 2022.\n\nThe Qualys Research team is continuously updating CVEs to available QIDs (Qualys vulnerability identifiers) in the Qualys Knowledgebase, with the RTI field \u201cCISA Exploited\u201d and this is going to be a continuous approach, as CISA frequently amends with the latest CVE as part of their regular feeds.\n\nOut of these vulnerabilities, Directive 22-01 urges all organizations to reduce their exposure to cyberattacks by effectively prioritizing the remediation of the identified Vulnerabilities.\n\nCISA has ordered U.S. federal agencies to apply patches as soon as possible. The remediation guidance is grouped into multiple categories by CISA based on attack surface severity and time-to-remediate. The timelines are available in the [Catalog](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>) for each of the CVEs.\n\n### Detect CISA Vulnerabilities Using Qualys VMDR\n\nQualys helps customers to identify and assess the risk to their organizations\u2019 digital infrastructure, and then to automate remediation. Qualys\u2019 guidance for rapid response to Directive 22-01 follows.\n\nThe Qualys Research team has released multiple remote and authenticated detections (QIDs) for these vulnerabilities. Since the directive includes 379 CVEs (as of February 22, 2022) we recommend executing your search based on QQL (Qualys Query Language), as shown here for released QIDs by Qualys **_vulnerabilities.vulnerability.threatIntel.cisaKnownExploitedVulns:"true"_**\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/CISA-Actual-1.jpg)\n\n### CISA Exploited RTI\n\nUsing [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>), you can effectively prioritize those vulnerabilities using VMDR Prioritization. Qualys has introduced an **RTI Category, CISA Exploited**.\n\nThis RTI indicates that the vulnerabilities are associated with the CISA catalog.\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/CISA-2.jpg)\n\nIn addition, you can locate a vulnerable host through Qualys Threat Protection by simply clicking on the impacted hosts to effectively identify and track this vulnerability.\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/CISA-3.jpg)\n\nWith Qualys Unified Dashboard, you can track your exposure to CISA Known Exploited Vulnerabilities and track your status and overall management in real-time. With dashboard widgets, you can keep track of the status of vulnerabilities in your environment using the [\u201cCISA 2010-21| KNOWN EXPLOITED VULNERABILITIES\u201d](<https://success.qualys.com/support/s/article/000006791>) Dashboard.\n\n### Detailed Operational Dashboard\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/CISA-4-scaled.jpg)\n\n### Remediation\n\nTo comply with this directive, federal agencies need to remediate all vulnerabilities as per the remediation timelines suggested in [CISA Catalog](<https://www.cisa.gov/known-exploited-vulnerabilities-catalog>)**.**\n\nQualys patch content covers many Microsoft, Linux, and third-party applications. However, some of the vulnerabilities introduced by CISA are not currently supported out-of-the-box by Qualys. To remediate those vulnerabilities, Qualys provides the ability to deploy custom patches. The flexibility to customize patch deployment allows customers to patch all the remaining CVEs in their list.\n\nCustomers can copy the following query into the Patch Management app to help customers comply with the directive\u2019s aggressive remediation timelines set by CISA. Running this query for specific CVEs will find required patches and allow quick and efficient deployment of those missing patches to all assets directly from within Qualys Cloud Platform.\n \n \n cve:[`CVE-2010-5326`,`CVE-2012-0158`,`CVE-2012-0391`,`CVE-2012-3152`,`CVE-2013-3900`,`CVE-2013-3906`,`CVE-2014-1761`,`CVE-2014-1776`,`CVE-2014-1812`,`CVE-2015-1635`,`CVE-2015-1641`,`CVE-2015-4852`,`CVE-2016-0167`,`CVE-2016-0185`,`CVE-2016-3088`,`CVE-2016-3235`,`CVE-2016-3643`,`CVE-2016-3976`,`CVE-2016-7255`,`CVE-2016-9563`,`CVE-2017-0143`,`CVE-2017-0144`,`CVE-2017-0145`,`CVE-2017-0199`,`CVE-2017-0262`,`CVE-2017-0263`,`CVE-2017-10271`,`CVE-2017-11774`,`CVE-2017-11882`,`CVE-2017-5638`,`CVE-2017-5689`,`CVE-2017-6327`,`CVE-2017-7269`,`CVE-2017-8464`,`CVE-2017-8759`,`CVE-2017-9791`,`CVE-2017-9805`,`CVE-2017-9841`,`CVE-2018-0798`,`CVE-2018-0802`,`CVE-2018-1000861`,`CVE-2018-11776`,`CVE-2018-15961`,`CVE-2018-15982`,`CVE-2018-2380`,`CVE-2018-4878`,`CVE-2018-4939`,`CVE-2018-6789`,`CVE-2018-7600`,`CVE-2018-8174`,`CVE-2018-8453`,`CVE-2018-8653`,`CVE-2019-0193`,`CVE-2019-0211`,`CVE-2019-0541`,`CVE-2019-0604`,`CVE-2019-0708`,`CVE-2019-0752`,`CVE-2019-0797`,`CVE-2019-0803`,`CVE-2019-0808`,`CVE-2019-0859`,`CVE-2019-0863`,`CVE-2019-10149`,`CVE-2019-10758`,`CVE-2019-11510`,`CVE-2019-11539`,`CVE-2019-1214`,`CVE-2019-1215`,`CVE-2019-1367`,`CVE-2019-1429`,`CVE-2019-1458`,`CVE-2019-16759`,`CVE-2019-17026`,`CVE-2019-17558`,`CVE-2019-18187`,`CVE-2019-18988`,`CVE-2019-2725`,`CVE-2019-8394`,`CVE-2019-9978`,`CVE-2020-0601`,`CVE-2020-0646`,`CVE-2020-0674`,`CVE-2020-0683`,`CVE-2020-0688`,`CVE-2020-0787`,`CVE-2020-0796`,`CVE-2020-0878`,`CVE-2020-0938`,`CVE-2020-0968`,`CVE-2020-0986`,`CVE-2020-10148`,`CVE-2020-10189`,`CVE-2020-1020`,`CVE-2020-1040`,`CVE-2020-1054`,`CVE-2020-1147`,`CVE-2020-11738`,`CVE-2020-11978`,`CVE-2020-1350`,`CVE-2020-13671`,`CVE-2020-1380`,`CVE-2020-13927`,`CVE-2020-1464`,`CVE-2020-1472`,`CVE-2020-14750`,`CVE-2020-14871`,`CVE-2020-14882`,`CVE-2020-14883`,`CVE-2020-15505`,`CVE-2020-15999`,`CVE-2020-16009`,`CVE-2020-16010`,`CVE-2020-16013`,`CVE-2020-16017`,`CVE-2020-17087`,`CVE-2020-17144`,`CVE-2020-17496`,`CVE-2020-17530`,`CVE-2020-24557`,`CVE-2020-25213`,`CVE-2020-2555`,`CVE-2020-6207`,`CVE-2020-6287`,`CVE-2020-6418`,`CVE-2020-6572`,`CVE-2020-6819`,`CVE-2020-6820`,`CVE-2020-8243`,`CVE-2020-8260`,`CVE-2020-8467`,`CVE-2020-8468`,`CVE-2020-8599`,`CVE-2021-1647`,`CVE-2021-1675`,`CVE-2021-1732`,`CVE-2021-21017`,`CVE-2021-21148`,`CVE-2021-21166`,`CVE-2021-21193`,`CVE-2021-21206`,`CVE-2021-21220`,`CVE-2021-21224`,`CVE-2021-22204`,`CVE-2021-22893`,`CVE-2021-22894`,`CVE-2021-22899`,`CVE-2021-22900`,`CVE-2021-26411`,`CVE-2021-26855`,`CVE-2021-26857`,`CVE-2021-26858`,`CVE-2021-27059`,`CVE-2021-27065`,`CVE-2021-27085`,`CVE-2021-28310`,`CVE-2021-28550`,`CVE-2021-30116`,`CVE-2021-30551`,`CVE-2021-30554`,`CVE-2021-30563`,`CVE-2021-30632`,`CVE-2021-30633`,`CVE-2021-31199`,`CVE-2021-31201`,`CVE-2021-31207`,`CVE-2021-31955`,`CVE-2021-31956`,`CVE-2021-31979`,`CVE-2021-33739`,`CVE-2021-33742`,`CVE-2021-33766`,`CVE-2021-33771`,`CVE-2021-34448`,`CVE-2021-34473`,`CVE-2021-34523`,`CVE-2021-34527`,`CVE-2021-35211`,`CVE-2021-35247`,`CVE-2021-36741`,`CVE-2021-36742`,`CVE-2021-36934`,`CVE-2021-36942`,`CVE-2021-36948`,`CVE-2021-36955`,`CVE-2021-37415`,`CVE-2021-37973`,`CVE-2021-37975`,`CVE-2021-37976`,`CVE-2021-38000`,`CVE-2021-38003`,`CVE-2021-38645`,`CVE-2021-38647`,`CVE-2021-38648`,`CVE-2021-38649`,`CVE-2021-40438`,`CVE-2021-40444`,`CVE-2021-40449`,`CVE-2021-40539`,`CVE-2021-4102`,`CVE-2021-41773`,`CVE-2021-42013`,`CVE-2021-42292`,`CVE-2021-42321`,`CVE-2021-43890`,`CVE-2021-44077`,`CVE-2021-44228`,`CVE-2021-44515`,`CVE-2022-0609`,`CVE-2022-21882`,`CVE-2022-24086`,`CVE-2010-1871`,`CVE-2017-12149`,`CVE-2019-13272` ]\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/patch-mgmt-windows2.jpg)\n\nVulnerabilities can be validated through VMDR and a Patch Job can be configured for vulnerable assets.\n\n![](https://blog.qualys.com/wp-content/uploads/2022/02/CISA-6.jpg)\n\n### Federal Enterprises and Agencies Can Act Now\n\nFor federal agencies and enterprises, it\u2019s a race against time to remediate these vulnerabilities across their respective environments and achieve compliance with this binding directive. Qualys solutions can help your organization to achieve compliance with this binding directive. Qualys Cloud Platform is FedRAMP authorized, with [107 FedRAMP authorizations](<https://marketplace.fedramp.gov/#!/product/qualys-cloud-platform?sort=-authorizations>) to our credit.\n\nHere are a few steps Federal entities can take immediately:\n\n * Run vulnerability assessments against all of your assets by leveraging our various sensors such as Qualys agent, scanners, and more\n * Prioritize remediation by due dates\n * Identify all vulnerable assets automatically mapped into the threat feed\n * Use Qualys Patch Management to apply patches and other configuration changes\n * Track remediation progress through our Unified Dashboards\n\n### Summary\n\nUnderstanding just which vulnerabilities exist in your environment is a critical but small part of threat mitigation. Qualys VMDR helps customers discover their exposure, assess threats, assign risk, and remediate threats \u2013 all in a single unified solution. Qualys customers rely on the accuracy of Qualys\u2019 threat intelligence to protect their digital environments and stay current with patch guidance. Using Qualys VMDR can help any size organization efficiently respond to CISA Binding Operational Directive 22-01.\n\n#### Getting Started\n\nLearn how [Qualys VMDR](<https://www.qualys.com/subscriptions/vmdr/>) provides actionable vulnerability guidance and automates remediation in one solution. Ready to get started? Sign up for a 30-day, no-cost [VMDR trial](<https://www.qualys.com/forms/vmdr/>).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 10.0, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 6.0}, "published": "2022-02-23T05:39:00", "type": "qualysblog", "title": "Managing CISA Known Exploited Vulnerabilities with Qualys VMDR", "bulletinFamily": "blog", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": true, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2010-1871", "CVE-2010-5326", "CVE-2012-0158", "CVE-2012-0391", "CVE-2012-3152", "CVE-2013-3900", "CVE-2013-3906", "CVE-2014-1761", "CVE-2014-1776", "CVE-2014-1812", "CVE-2015-1635", "CVE-2015-1641", "CVE-2015-4852", "CVE-2016-0167", "CVE-2016-0185", "CVE-2016-3088", "CVE-2016-3235", "CVE-2016-3643", "CVE-2016-3976", "CVE-2016-7255", "CVE-2016-9563", "CVE-2017-0143", "CVE-2017-0144", "CVE-2017-0145", "CVE-2017-0199", "CVE-2017-0262", "CVE-2017-0263", "CVE-2017-10271", "CVE-2017-11774", "CVE-2017-11882", "CVE-2017-12149", "CVE-2017-5638", "CVE-2017-5689", "CVE-2017-6327", "CVE-2017-7269", "CVE-2017-8464", "CVE-2017-8759", "CVE-2017-9791", "CVE-2017-9805", "CVE-2017-9841", "CVE-2018-0798", "CVE-2018-0802", "CVE-2018-1000861", "CVE-2018-11776", "CVE-2018-15961", "CVE-2018-15982", "CVE-2018-2380", "CVE-2018-4878", "CVE-2018-4939", "CVE-2018-6789", "CVE-2018-7600", "CVE-2018-8174", "CVE-2018-8453", "CVE-2018-8653", "CVE-2019-0193", "CVE-2019-0211", "CVE-2019-0541", "CVE-2019-0604", "CVE-2019-0708", "CVE-2019-0752", "CVE-2019-0797", "CVE-2019-0803", "CVE-2019-0808", "CVE-2019-0859", "CVE-2019-0863", "CVE-2019-10149", "CVE-2019-10758", "CVE-2019-11510", "CVE-2019-11539", "CVE-2019-1214", "CVE-2019-1215", "CVE-2019-13272", "CVE-2019-1367", "CVE-2019-1429", "CVE-2019-1458", "CVE-2019-16759", "CVE-2019-17026", "CVE-2019-17558", "CVE-2019-18187", "CVE-2019-18988", "CVE-2019-2725", "CVE-2019-8394", "CVE-2019-9978", "CVE-2020-0601", "CVE-2020-0646", "CVE-2020-0674", "CVE-2020-0683", "CVE-2020-0688", "CVE-2020-0787", "CVE-2020-0796", "CVE-2020-0878", "CVE-2020-0938", "CVE-2020-0968", "CVE-2020-0986", "CVE-2020-10148", "CVE-2020-10189", "CVE-2020-1020", "CVE-2020-1040", "CVE-2020-1054", "CVE-2020-1147", "CVE-2020-11738", "CVE-2020-11978", "CVE-2020-1350", "CVE-2020-13671", "CVE-2020-1380", "CVE-2020-13927", "CVE-2020-1464", "CVE-2020-1472", "CVE-2020-14750", "CVE-2020-14871", "CVE-2020-14882", "CVE-2020-14883", "CVE-2020-15505", "CVE-2020-15999", "CVE-2020-16009", "CVE-2020-16010", "CVE-2020-16013", "CVE-2020-16017", "CVE-2020-17087", "CVE-2020-17144", "CVE-2020-17496", "CVE-2020-17530", "CVE-2020-24557", "CVE-2020-25213", "CVE-2020-2555", "CVE-2020-6207", "CVE-2020-6287", "CVE-2020-6418", "CVE-2020-6572", "CVE-2020-6819", "CVE-2020-6820", "CVE-2020-8243", "CVE-2020-8260", "CVE-2020-8467", "CVE-2020-8468", "CVE-2020-8599", "CVE-2021-1647", "CVE-2021-1675", "CVE-2021-1732", "CVE-2021-21017", "CVE-2021-21148", "CVE-2021-21166", "CVE-2021-21193", "CVE-2021-21206", "CVE-2021-21220", "CVE-2021-21224", "CVE-2021-22204", "CVE-2021-22893", "CVE-2021-22894", "CVE-2021-22899", "CVE-2021-22900", "CVE-2021-26411", "CVE-2021-26855", "CVE-2021-26857", "CVE-2021-26858", "CVE-2021-27059", "CVE-2021-27065", "CVE-2021-27085", "CVE-2021-28310", "CVE-2021-28550", "CVE-2021-30116", "CVE-2021-30551", "CVE-2021-30554", "CVE-2021-30563", "CVE-2021-30632", "CVE-2021-30633", "CVE-2021-31199", "CVE-2021-31201", "CVE-2021-31207", "CVE-2021-31955", "CVE-2021-31956", "CVE-2021-31979", "CVE-2021-33739", "CVE-2021-33742", "CVE-2021-33766", "CVE-2021-33771", "CVE-2021-34448", "CVE-2021-34473", "CVE-2021-34523", "CVE-2021-34527", "CVE-2021-35211", "CVE-2021-35247", "CVE-2021-36741", "CVE-2021-36742", "CVE-2021-36934", "CVE-2021-36942", "CVE-2021-36948", "CVE-2021-36955", "CVE-2021-37415", "CVE-2021-37973", "CVE-2021-37975", "CVE-2021-37976", "CVE-2021-38000", "CVE-2021-38003", "CVE-2021-38645", "CVE-2021-38647", "CVE-2021-38648", "CVE-2021-38649", "CVE-2021-40438", "CVE-2021-40444", "CVE-2021-40449", "CVE-2021-40539", "CVE-2021-4102", "CVE-2021-41773", "CVE-2021-42013", "CVE-2021-42292", "CVE-2021-42321", "CVE-2021-43890", "CVE-2021-44077", "CVE-2021-44228", "CVE-2021-44515", "CVE-2022-0609", "CVE-2022-21882", "CVE-2022-24086"], "modified": "2022-02-23T05:39:00", "id": "QUALYSBLOG:0082A77BD8EFFF48B406D107FEFD0DD3", "href": "https://blog.qualys.com/category/product-tech", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "rapid7blog": [{"lastseen": "2021-02-10T00:48:57", "description": "![Patch Tuesday - February 2021](https://blog.rapid7.com/content/images/2021/02/patches-2.jpg)\n\nThe second Patch Tuesday of 2021 is relatively light on the vulnerability count, with 64 CVEs being addressed across the majority of Microsoft\u2019s product families. Despite that, there\u2019s still plenty to discuss this month.\n\n### Vulnerability Breakdown by Software Family\n\nFamily | Vulnerability Count \n---|--- \nWindows | 28 \nESU | 14 \nMicrosoft Office | 11 \nBrowser | 9 \nDeveloper Tools | 8 \nMicrosoft Dynamics | 2 \nExchange Server | 2 \nAzure | 2 \nSystem Center | 2 \n \n### Exploited and Publicly Disclosed Vulnerabilities\n\nOne zero-day was announced: [CVE-2021-1732](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732>) is a privilege elevation vulnerability affecting the Win32k component of Windows 10 and Windows Server 2019, reported to be exploited in the wild. Four vulnerabilities have been previously disclosed: [CVE-2021-1727](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1727>), a privilege elevation vulnerability in Windows Installer, affecting all supported versions of Windows; [CVE-2021-24098](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24098>), which is a denial of service (DoS) affecting Windows 10 and Server 2019; [CVE-2021-24106](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24106>), an information disclosure vulnerability affecting DirectX in Windows 10 and Server 2019; and [CVE-2021-26701](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701>), an RCE in .NET Core.\n\n### Vulnerabilities in Windows TCP/IP\n\nMicrosoft also disclosed a set of [three serious vulnerabilities](<https://msrc-blog.microsoft.com/2021/02/09/multiple-security-updates-affecting-tcp-ip/>) affecting the TCP/IP networking stack in all supported versions of Windows. Two of these ([CVE-2021-24074](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24074>) and [CVE-2021-24094](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24094>)) carry a base CVSSv3 score of 9.8 and could allow Remote Code Execution (RCE). [CVE-2021-24094](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24094>) is specific to IPv6 link-local addresses, meaning it isn\u2019t exploitable over the public internet. [CVE-2021-24074](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24074>), however, does not have this limitation. The third, [CVE-2021-24086](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24086>), is a DoS vulnerability that could allow an attacker to trigger a \u201cblue screen of death\u201d on any Windows system that is directly exposed to the internet, using only a small amount of network traffic. The RCE exploits are probably not a threat in the short term, due to the complexity of the vulnerabilities, but DoS attacks are expected to be seen much more quickly. Windows systems should be patched as soon as possible to protect against these.\n\nIn the event a patch cannot be applied immediately, such as on systems that cannot be rebooted, Microsoft has published mitigation guidance that will protect against exploitation of the TCP/IP vulnerabilities. Depending on the exposure of an asset, IPv4 Source Routing should be disabled via a Group Policy or a Netsh command, and IPv6 packet reassembly should be disabled via a separate Netsh command. IPv4 Source Routing requests and IPv6 fragments can also be blocked load balancers, firewalls, or other edge devices to mitigate these issues.\n\n### Zerologon Update\n\nBack in August, 2020, Microsoft addressed a critical remote code vulnerability (CVE-2020-1472) affecting the Netlogon protocol (MS-NRPC), a.k.a. \u201c[Zerologon](<https://blog.rapid7.com/2020/09/14/cve-2020-1472-zerologon-critical-privilege-escalation/>)\u201d. In October, Microsoft [noted](<https://msrc-blog.microsoft.com/2020/10/29/attacks-exploiting-netlogon-vulnerability-cve-2020-1472/>) that attacks which exploit this weakness have been seen in the wild. On January 14, 2021, they [reminded](<https://msrc-blog.microsoft.com/2021/01/14/netlogon-domain-controller-enforcement-mode-is-enabled-by-default-beginning-with-the-february-9-2021-security-update-related-to-cve-2020-1472/>) organizations that the February 2021 security update bundle will also be enabling \u201cDomain Controller enforcement mode\" by default to fully address this weakness. Any system that tries to make an insecure Netlogon connection will be denied access. Any business-critical process that relies on these insecure connections will cease to function. Rapid7 encourages all organizations to [heed the detailed guidance](<https://support.microsoft.com/en-us/topic/how-to-manage-the-changes-in-netlogon-secure-channel-connections-associated-with-cve-2020-1472-f7e8cc17-0309-1d6a-304e-5ba73cd1a11e#bkmk_detectingnon_compliant>) before applying the latest updates to ensure continued business process continuity.\n\n### Adobe\n\nMost important amongst the [six security advisories](<https://helpx.adobe.com/security.html>) published by Adobe today is [APSB21-09](<https://helpx.adobe.com/security/products/acrobat/apsb21-09.html>), detailing 23 CVEs affecting Adobe Acrobat and Reader. Six of these are rated Critical and allow Arbitrary Code Execution, and one of which (CVE-2021-21017), has been seen exploited in the wild in attacks targeting Adobe Reader users on Windows.\n\n### Summary Tables\n\n#### Azure Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-24109](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24109>) | Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability | No | No | 6.8 | Yes \n[CVE-2021-24087](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24087>) | Azure IoT CLI extension Elevation of Privilege Vulnerability | No | No | 7 | Yes \n \n#### Browser Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-24100](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24100>) | Microsoft Edge for Android Information Disclosure Vulnerability | No | No | 5 | Yes \n[CVE-2021-24113](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24113>) | Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability | No | No | 4.6 | Yes \n[CVE-2021-21148](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21148>) | Chromium CVE-2021-21148: Heap buffer overflow in V8 | N/A | N/A | nan | Yes \n[CVE-2021-21147](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21147>) | Chromium CVE-2021-21147: Inappropriate implementation in Skia | N/A | N/A | nan | Yes \n[CVE-2021-21146](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21146>) | Chromium CVE-2021-21146: Use after free in Navigation | N/A | N/A | nan | Yes \n[CVE-2021-21145](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21145>) | Chromium CVE-2021-21145: Use after free in Fonts | N/A | N/A | nan | Yes \n[CVE-2021-21144](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21144>) | Chromium CVE-2021-21144: Heap buffer overflow in Tab Groups | N/A | N/A | nan | Yes \n[CVE-2021-21143](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21143>) | Chromium CVE-2021-21143: Heap buffer overflow in Extensions | N/A | N/A | nan | Yes \n[CVE-2021-21142](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21142>) | Chromium CVE-2021-21142: Use after free in Payments | N/A | N/A | nan | Yes \n \n#### Developer Tools Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-26700](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26700>) | Visual Studio Code npm-script Extension Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-1639](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1639>) | Visual Studio Code Remote Code Execution Vulnerability | No | No | 7 | No \n[CVE-2021-1733](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1733>) | Sysinternals PsExec Elevation of Privilege Vulnerability | No | Yes | 7.8 | Yes \n[CVE-2021-24105](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24105>) | Package Managers Configurations Remote Code Execution Vulnerability | No | No | 8.4 | Yes \n[CVE-2021-24111](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24111>) | .NET Framework Denial of Service Vulnerability | No | No | 7.5 | No \n[CVE-2021-1721](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721>) | .NET Core and Visual Studio Denial of Service Vulnerability | No | Yes | 6.5 | No \n[CVE-2021-26701](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26701>) | .NET Core Remote Code Execution Vulnerability | No | Yes | 8.1 | Yes \n[CVE-2021-24112](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24112>) | .NET Core Remote Code Execution Vulnerability | No | No | 8.1 | Yes \n \n#### ESU Windows Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-24080](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24080>) | Windows Trust Verification API Denial of Service Vulnerability | No | No | 6.5 | No \n[CVE-2021-24074](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24074>) | Windows TCP/IP Remote Code Execution Vulnerability | No | No | 9.8 | Yes \n[CVE-2021-24094](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24094>) | Windows TCP/IP Remote Code Execution Vulnerability | No | No | 9.8 | Yes \n[CVE-2021-24086](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24086>) | Windows TCP/IP Denial of Service Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-1734](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1734>) | Windows Remote Procedure Call Information Disclosure Vulnerability | No | No | 7.5 | Yes \n[CVE-2021-25195](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-25195>) | Windows PKU2U Elevation of Privilege Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-24088](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24088>) | Windows Local Spooler Remote Code Execution Vulnerability | No | No | 8.8 | No \n[CVE-2021-1727](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1727>) | Windows Installer Elevation of Privilege Vulnerability | No | Yes | 7.8 | No \n[CVE-2021-24077](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24077>) | Windows Fax Service Remote Code Execution Vulnerability | No | No | 9.8 | Yes \n[CVE-2021-1722](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1722>) | Windows Fax Service Remote Code Execution Vulnerability | No | No | 8.1 | Yes \n[CVE-2021-24102](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24102>) | Windows Event Tracing Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-24103](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24103>) | Windows Event Tracing Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-24078](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24078>) | Windows DNS Server Remote Code Execution Vulnerability | No | No | 9.8 | Yes \n[CVE-2021-24083](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24083>) | Windows Address Book Remote Code Execution Vulnerability | No | No | 7.8 | No \n \n#### Exchange Server Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-24085](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24085>) | Microsoft Exchange Server Spoofing Vulnerability | No | No | 6.5 | Yes \n[CVE-2021-1730](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1730>) | Microsoft Exchange Server Spoofing Vulnerability | No | No | 5.4 | Yes \n \n#### Microsoft Dynamics Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-1724](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1724>) | Microsoft Dynamics Business Central Cross-site Scripting Vulnerability | No | No | 6.1 | No \n[CVE-2021-24101](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24101>) | Microsoft Dataverse Information Disclosure Vulnerability | No | No | 6.5 | Yes \n \n#### Microsoft Office Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-24073](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24073>) | Skype for Business and Lync Spoofing Vulnerability | No | No | 6.5 | No \n[CVE-2021-24099](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24099>) | Skype for Business and Lync Denial of Service Vulnerability | No | No | 6.5 | No \n[CVE-2021-24114](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24114>) | Microsoft Teams iOS Information Disclosure Vulnerability | No | No | 5.7 | Yes \n[CVE-2021-1726](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1726>) | Microsoft SharePoint Spoofing Vulnerability | No | No | 8 | Yes \n[CVE-2021-24072](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24072>) | Microsoft SharePoint Server Remote Code Execution Vulnerability | No | No | 8.8 | No \n[CVE-2021-24066](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24066>) | Microsoft SharePoint Remote Code Execution Vulnerability | No | No | 8.8 | Yes \n[CVE-2021-24071](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24071>) | Microsoft SharePoint Information Disclosure Vulnerability | No | No | 5.3 | Yes \n[CVE-2021-24067](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24067>) | Microsoft Excel Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-24068](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24068>) | Microsoft Excel Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-24069](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24069>) | Microsoft Excel Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n[CVE-2021-24070](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24070>) | Microsoft Excel Remote Code Execution Vulnerability | No | No | 7.8 | Yes \n \n## System Center Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-1728](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1728>) | System Center Operations Manager Elevation of Privilege Vulnerability | No | No | 8.8 | Yes \n[CVE-2021-24092](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24092>) | Microsoft Defender Elevation of Privilege Vulnerability | No | No | 7.8 | Yes \n \n#### Windows Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Publicly Disclosed | CVSSv3 Base Score | FAQ? \n---|---|---|---|---|--- \n[CVE-2021-1732](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1732>) | Windows Win32k Elevation of Privilege Vulnerability | Yes | No | 7.8 | No \n[CVE-2021-1698](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1698>) | Windows Win32k Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-24075](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24075>) | Windows Network File System Denial of Service Vulnerability | No | No | 6.8 | No \n[CVE-2021-24084](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24084>) | Windows Mobile Device Management Information Disclosure Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-24096](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24096>) | Windows Kernel Elevation of Privilege Vulnerability | No | No | 7.8 | No \n[CVE-2021-24093](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24093>) | Windows Graphics Component Remote Code Execution Vulnerability | No | No | 8.8 | Yes \n[CVE-2021-24106](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24106>) | Windows DirectX Information Disclosure Vulnerability | No | Yes | 5.5 | Yes \n[CVE-2021-24098](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24098>) | Windows Console Driver Denial of Service Vulnerability | No | Yes | 5.5 | Yes \n[CVE-2021-24091](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24091>) | Windows Camera Codec Pack Remote Code Execution Vulnerability | No | No | 7.8 | No \n[CVE-2021-24079](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24079>) | Windows Backup Engine Information Disclosure Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-1731](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1731>) | PFX Encryption Security Feature Bypass Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-24082](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24082>) | Microsoft.PowerShell.Utility Module WDAC Security Feature Bypass Vulnerability | No | No | 4.3 | No \n[CVE-2021-24076](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24076>) | Microsoft Windows VMSwitch Information Disclosure Vulnerability | No | No | 5.5 | Yes \n[CVE-2021-24081](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-24081>) | Microsoft Windows Codecs Library Remote Code Execution Vulnerability | No | No | 7.8 | No \n \n### Summary Charts\n\n![Patch Tuesday - February 2021](https://blog.rapid7.com/content/images/2021/02/2021-02-vuln_count_component.png)![Patch Tuesday - February 2021](https://blog.rapid7.com/content/images/2021/02/2021-02-cvssv3_hist.png)![Patch Tuesday - February 2021](https://blog.rapid7.com/content/images/2021/02/2021-02-vuln_count_severity.png)![Patch Tuesday - February 2021](https://blog.rapid7.com/content/images/2021/02/2021-02-vuln_count_impact.png)\n\n________Note: _______Chart_______ data is reflective of data presented by Microsoft's CVRF at the time of writing.________", "cvss3": {}, "published": "2021-02-09T23:51:27", "type": "rapid7blog", "title": "Patch Tuesday - February 2021", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2020-1472", "CVE-2021-1639", "CVE-2021-1698", "CVE-2021-1721", "CVE-2021-1722", "CVE-2021-1724", "CVE-2021-1726", "CVE-2021-1727", "CVE-2021-1728", "CVE-2021-1730", "CVE-2021-1731", "CVE-2021-1732", "CVE-2021-1733", "CVE-2021-1734", "CVE-2021-21017", "CVE-2021-21142", "CVE-2021-21143", "CVE-2021-21144", "CVE-2021-21145", "CVE-2021-21146", "CVE-2021-21147", "CVE-2021-21148", "CVE-2021-24066", "CVE-2021-24067", "CVE-2021-24068", "CVE-2021-24069", "CVE-2021-24070", "CVE-2021-24071", "CVE-2021-24072", "CVE-2021-24073", "CVE-2021-24074", "CVE-2021-24075", "CVE-2021-24076", "CVE-2021-24077", "CVE-2021-24078", "CVE-2021-24079", "CVE-2021-24080", "CVE-2021-24081", "CVE-2021-24082", "CVE-2021-24083", "CVE-2021-24084", "CVE-2021-24085", "CVE-2021-24086", "CVE-2021-24087", "CVE-2021-24088", "CVE-2021-24091", "CVE-2021-24092", "CVE-2021-24093", "CVE-2021-24094", "CVE-2021-24096", "CVE-2021-24098", "CVE-2021-24099", "CVE-2021-24100", "CVE-2021-24101", "CVE-2021-24102", "CVE-2021-24103", "CVE-2021-24105", "CVE-2021-24106", "CVE-2021-24109", "CVE-2021-24111", "CVE-2021-24112", "CVE-2021-24113", "CVE-2021-24114", "CVE-2021-25195", "CVE-2021-26700", "CVE-2021-26701"], "modified": "2021-02-09T23:51:27", "id": "RAPID7BLOG:44EA89871AFF6881B909B9FD0E07034F", "href": "https://blog.rapid7.com/2021/02/09/patch-tuesday-february-2021/", "cvss": {"score": 9.3, "vector": "AV:N/AC:M/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-03-13T12:49:58", "description": "![Patch Tuesday - March 2021](https://blog.rapid7.com/content/images/2021/03/patches-2.jpg)\n\nAnother Patch Tuesday ([2021-Mar](<https://msrc.microsoft.com/update-guide/releaseNote/2021-Mar>)) is upon us and with this month comes a whopping 122 CVEs. As usual Windows tops the list of the most patched product. However, this month it\u2019s browser vulnerabilities taking the second place, outnumbering Office vulnerabilities 3:1! Lastly, the Exchange Server vulnerabilities this month are not to be ignored as more than half of them have been seen exploited in the wild.\n\n### Vulnerability Breakdown by Software Family\n\nFamily | Vulnerability Count \n---|--- \nWindows | 59 \nBrowser | 35 \nESU | 24 \nMicrosoft Office | 11 \nExchange Server | 7 \nDeveloper Tools | 6 \nAzure | 3 \nSQL Server | 1 \n \n## [Exchange Server Vulnerabilities](<https://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2019-2016-and-2013-march-2-2021-kb5000871-9800a6bb-0a21-4ee7-b9da-fa85b3e1d23b>)\n\nEarlier this month Microsoft [released out of band updates for Exchange Server](<https://msrc-blog.microsoft.com/2021/03/02/multiple-security-updates-released-for-exchange-server>). These critical updates fixed a number of publicly exploited vulnerabilities, but not before attackers were able to compromise over 30,000 internet facing instances. \n\nYesterday, Microsoft issued an [additional set of patches](<https://msrc-blog.microsoft.com/2021/03/05/microsoft-exchange-server-vulnerabilities-mitigations-march-2021/>) for older, unsupported versions of Exchange Server. This allows customers who have not been able to update to the most recent version of Exchange the ability to defend against these widespread exploit attempts.\n\nIf you administer an Exchange Server,** stop reading this blog and go patch these systems!** For more information [please see our blog post on the topic](<https://blog.rapid7.com/2021/03/03/mass-exploitation-of-exchange-server-zero-day-cves-what-you-need-to-know/>).\n\n## Patch those Windows systems!\n\nAlmost half of the newly announced vulnerabilities this month affect components of Windows itself. Some major highlights include:\n\n * Multiple high severity RCE vulnerabilities in Windows DNS Server \n([CVE-2021-26877](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26877>), [CVE-2021-26893](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26893>), [CVE-2021-26894](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26894>), [CVE-2021-26895](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26895>), and [CVE-2021-26897](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26897>))\n * Remote Code Execution in Hyper-V ([CVE-2021-26867](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26867>)) enabling virtual machine escape (CVSSv3 9.9)\n\n## Browser Vulnerabilities\n\nSince going end-of-life in November 2020, we haven't seen any Internet Explorer patches from Microsoft. However, this month Microsoft has made two new updates available: [CVE-2021-27085](<https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-27085>) and [CVE-2021-26411](<https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-26411>). CVE-2021-26411 has been exploited in the wild, so don't delay applying patches if IE is still in your environment.\n\nThe majority of the browser vulnerabilities announced this month affect Microsoft Edge on Chromium. These patches are courtesy of vulnerabilities being fixed upstream in the Chromium project.\n\n## Summary Tables\n\nHere are this month's patched vulnerabilities split by the product family.\n\n## Azure Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-27075](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27075>) | Azure Virtual Machine Information Disclosure Vulnerability | No | No | 6.8 | Yes \n[CVE-2021-27080](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27080>) | Azure Sphere Unsigned Code Execution Vulnerability | No | No | 9.3 | Yes \n[CVE-2021-27074](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27074>) | Azure Sphere Unsigned Code Execution Vulnerability | No | No | 6.2 | Yes \n \n## Browser Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-27085](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27085>) | Internet Explorer Remote Code Execution Vulnerability | No | No | 8.8 | No \n[CVE-2021-21190](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21190>) | Chromium CVE-2021-21190 : Uninitialized Use in PDFium | No | No | N/A | Yes \n[CVE-2021-21189](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21189>) | Chromium CVE-2021-21189: Insufficient policy enforcement in payments | No | No | N/A | Yes \n[CVE-2021-21188](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21188>) | Chromium CVE-2021-21188: Use after free in Blink | No | No | N/A | Yes \n[CVE-2021-21187](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21187>) | Chromium CVE-2021-21187: Insufficient data validation in URL formatting | No | No | N/A | Yes \n[CVE-2021-21186](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21186>) | Chromium CVE-2021-21186: Insufficient policy enforcement in QR scanning | No | No | N/A | Yes \n[CVE-2021-21185](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21185>) | Chromium CVE-2021-21185: Insufficient policy enforcement in extensions | No | No | N/A | Yes \n[CVE-2021-21184](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21184>) | Chromium CVE-2021-21184: Inappropriate implementation in performance APIs | No | No | N/A | Yes \n[CVE-2021-21183](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21183>) | Chromium CVE-2021-21183: Inappropriate implementation in performance APIs | No | No | N/A | Yes \n[CVE-2021-21182](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21182>) | Chromium CVE-2021-21182: Insufficient policy enforcement in navigations | No | No | N/A | Yes \n[CVE-2021-21181](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21181>) | Chromium CVE-2021-21181: Side-channel information leakage in autofill | No | No | N/A | Yes \n[CVE-2021-21180](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21180>) | Chromium CVE-2021-21180: Use after free in tab search | No | No | N/A | Yes \n[CVE-2021-21179](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21179>) | Chromium CVE-2021-21179: Use after free in Network Internals | No | No | N/A | Yes \n[CVE-2021-21178](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21178>) | Chromium CVE-2021-21178 : Inappropriate implementation in Compositing | No | No | N/A | Yes \n[CVE-2021-21177](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21177>) | Chromium CVE-2021-21177: Insufficient policy enforcement in Autofill | No | No | N/A | Yes \n[CVE-2021-21176](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21176>) | Chromium CVE-2021-21176: Inappropriate implementation in full screen mode | No | No | N/A | Yes \n[CVE-2021-21175](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21175>) | Chromium CVE-2021-21175: Inappropriate implementation in Site isolation | No | No | N/A | Yes \n[CVE-2021-21174](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21174>) | Chromium CVE-2021-21174: Inappropriate implementation in Referrer | No | No | N/A | Yes \n[CVE-2021-21173](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21173>) | Chromium CVE-2021-21173: Side-channel information leakage in Network Internals | No | No | N/A | Yes \n[CVE-2021-21172](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21172>) | Chromium CVE-2021-21172: Insufficient policy enforcement in File System API | No | No | N/A | Yes \n[CVE-2021-21171](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21171>) | Chromium CVE-2021-21171: Incorrect security UI in TabStrip and Navigation | No | No | N/A | Yes \n[CVE-2021-21170](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21170>) | Chromium CVE-2021-21170: Incorrect security UI in Loader | No | No | N/A | Yes \n[CVE-2021-21169](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21169>) | Chromium CVE-2021-21169: Out of bounds memory access in V8 | No | No | N/A | Yes \n[CVE-2021-21168](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21168>) | Chromium CVE-2021-21168: Insufficient policy enforcement in appcache | No | No | N/A | Yes \n[CVE-2021-21167](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21167>) | Chromium CVE-2021-21167: Use after free in bookmarks | No | No | N/A | Yes \n[CVE-2021-21166](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21166>) | Chromium CVE-2021-21166: Object lifecycle issue in audio | No | No | N/A | Yes \n[CVE-2021-21165](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21165>) | Chromium CVE-2021-21165: Object lifecycle issue in audio | No | No | N/A | Yes \n[CVE-2021-21164](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21164>) | Chromium CVE-2021-21164: Insufficient data validation in Chrome for iOS | No | No | N/A | Yes \n[CVE-2021-21163](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21163>) | Chromium CVE-2021-21163: Insufficient data validation in Reader Mode | No | No | N/A | Yes \n[CVE-2021-21162](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21162>) | Chromium CVE-2021-21162: Use after free in WebRTC | No | No | N/A | Yes \n[CVE-2021-21161](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21161>) | Chromium CVE-2021-21161: Heap buffer overflow in TabStrip | No | No | N/A | Yes \n[CVE-2021-21160](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21160>) | Chromium CVE-2021-21160: Heap buffer overflow in WebAudio | No | No | N/A | Yes \n[CVE-2021-21159](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-21159>) | Chromium CVE-2021-21159: Heap buffer overflow in TabStrip | No | No | N/A | Yes \n[CVE-2020-27844](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-27844>) | Chromium CVE-2020-27844: Heap buffer overflow in OpenJPEG | No | No | N/A | Yes \n \n## Browser ESU Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-26411](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26411>) | Internet Explorer Memory Corruption Vulnerability | Yes | Yes | 8.8 | Yes \n \n## Developer Tools Vulnerabilities\n\nCVE | Vulnerability Title | Exploited | Disclosed | CVSS3 | FAQ \n---|---|---|---|---|--- \n[CVE-2021-27060](<https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-27060>) | Vis