Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.
Security Fix(es):
* squid: out-of-bounds read in WCCP protocol data may lead to information disclosure (CVE-2021-28116)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
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if (reference &&\n _release &&\n rhel_decide_repo_relative_url_check(required_repo_url_list:repo_relative_urls) &&\n (applicable_repo_urls || (!exists_check || rpm_exists(release:_release, rpm:exists_check))) &&\n 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 }\n}\n\nif (!appstreams_found) audit(AUDIT_PACKAGE_NOT_INSTALLED, 'Module squid:4');\n\nif (flag)\n{\n var extra = NULL;\n if (empty_or_null(applicable_repo_urls)) extra = rpm_report_get() + redhat_report_repo_caveat();\n else extra = rpm_report_get();\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : extra\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libecap / libecap-devel / squid');\n}\n", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}, 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An out-of-bounds read in the WCCP protocol can be leveraged as part of a chain for remote code execution leading to an information disclosure. The highest threat from this vulnerability is to data confidentiality.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-03-17T10:34:28", "type": "redhatcve", "title": "CVE-2021-28116", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2023-03-08T20:53:25", "id": "RH:CVE-2021-28116", "href": "https://access.redhat.com/security/cve/cve-2021-28116", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "ubuntucve": [{"lastseen": "2022-10-26T13:37:39", "description": "Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows\ninformation disclosure because of an out-of-bounds read in WCCP protocol\ndata. This can be leveraged as part of a chain for remote code execution as\nnobody.\n\n#### Bugs\n\n * <https://bugs.squid-cache.org/show_bug.cgi?id=5131>\n * <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=986804>\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-03-09T00:00:00", "type": "ubuntucve", "title": "CVE-2021-28116", "bulletinFamily": "info", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2021-03-09T00:00:00", "id": "UB:CVE-2021-28116", "href": "https://ubuntu.com/security/CVE-2021-28116", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "mageia": [{"lastseen": "2022-04-18T11:19:35", "description": "Updated squid packages fix security vulnerability: Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody (CVE-2021-28116). Squid is updated to 4.17 that fixes this issue and other bugs. \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-10-31T11:12:48", "type": "mageia", "title": "Updated squid packages fix security vulnerability\n", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2021-10-31T11:12:48", "id": "MGASA-2021-0499", "href": "https://advisories.mageia.org/MGASA-2021-0499.html", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "redhat": [{"lastseen": "2022-05-10T11:37:16", "description": "Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: out-of-bounds read in WCCP protocol data may lead to information disclosure (CVE-2021-28116)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2022-05-10T06:39:58", "type": "redhat", "title": "(RHSA-2022:1939) Moderate: squid:4 security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2022-05-10T10:03:43", "id": "RHSA-2022:1939", "href": "https://access.redhat.com/errata/RHSA-2022:1939", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "oraclelinux": [{"lastseen": "2022-05-17T14:43:09", "description": "libecap\nsquid\n[7:4.15-3]\n- Resolves: #1941506 - CVE-2021-28116 squid:4/squid: out-of-bounds read in WCCP\n protocol data may lead to information disclosure\n[7:4.15-2]\n- Resolves: #2006121 - SQUID shortens FTP Link wrong that contains a semi-colon\n and as a result is not able to download zip file.CODE 404 TO CLIENT)", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2022-05-17T00:00:00", "type": "oraclelinux", "title": "squid:4 security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2022-05-17T00:00:00", "id": "ELSA-2022-1939", "href": "http://linux.oracle.com/errata/ELSA-2022-1939.html", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "veracode": [{"lastseen": "2022-07-17T13:03:10", "description": "Squid is vulnerable to information disclosure.An out-of-bounds read in WCCP protocol data can be leveraged as part of a chain for remote code execution as nobody.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-10-05T17:24:27", "type": "veracode", "title": "Information Disclosure", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2022-06-28T15:49:21", "id": "VERACODE:32386", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-32386/summary", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "osv": [{"lastseen": "2023-02-03T20:11:13", "description": "Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.", "cvss3": {}, "published": "2021-03-09T22:15:00", "type": "osv", "title": "CVE-2021-28116", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2021-28116"], "modified": "2023-02-03T20:11:10", "id": "OSV:CVE-2021-28116", "href": "https://osv.dev/vulnerability/CVE-2021-28116", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2022-08-10T07:21:00", "description": "\nMultiple security issues were discovered in the Squid proxy caching\nserver:\n\n\n* [CVE-2021-28116](https://security-tracker.debian.org/tracker/CVE-2021-28116)\nAmos Jeffries discovered an information leak if WCCPv2 is enabled\n* [CVE-2021-46784](https://security-tracker.debian.org/tracker/CVE-2021-46784)\nJoshua Rogers discovered that an error in parsing Gopher server\n responses may result in denial of service\n\n\nFor the oldstable distribution (buster), these problems have been fixed\nin version 4.6-1+deb10u7.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 4.13-10+deb11u1.\n\n\nWe recommend that you upgrade your squid packages.\n\n\nFor the detailed security status of squid please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/squid](https://security-tracker.debian.org/tracker/squid)\n\n\n", "cvss3": {"exploitabilityScore": 2.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 6.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2022-06-27T00:00:00", "type": "osv", "title": "squid - security update", "bulletinFamily": "software", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-46784"], "modified": "2022-08-10T07:20:58", "id": "OSV:DSA-5171-1", "href": "https://osv.dev/vulnerability/DSA-5171-1", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "rocky": [{"lastseen": "2023-02-02T17:10:43", "description": "An update is available for squid, libecap.\nThis update affects Rocky Linux 8.\nA Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list\nSquid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nSecurity Fix(es):\n\n* squid: out-of-bounds read in WCCP protocol data may lead to information disclosure (CVE-2021-28116)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.6 Release Notes linked from the References section.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2022-05-10T06:39:58", "type": "rocky", "title": "squid:4 security and bug fix update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2022-05-10T06:39:58", "id": "RLSA-2022:1939", "href": "https://errata.rockylinux.org/RLSA-2022:1939", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "cve": [{"lastseen": "2023-02-08T15:39:51", "description": "Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 5.3, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 1.4}, "published": "2021-03-09T22:15:00", "type": "cve", "title": "CVE-2021-28116", "cwe": ["CWE-125"], "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116"], "modified": "2023-02-03T18:56:00", "cpe": ["cpe:/a:squid-cache:squid:4.14", "cpe:/o:debian:debian_linux:10.0", "cpe:/o:fedoraproject:fedora:34", "cpe:/o:fedoraproject:fedora:33", "cpe:/a:squid-cache:squid:5.0.5", "cpe:/o:debian:debian_linux:11.0"], "id": "CVE-2021-28116", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-28116", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}, "cpe23": ["cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:4.14:*:*:*:*:*:*:*", "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "cpe:2.3:a:squid-cache:squid:5.0.5:*:*:*:*:*:*:*", "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*"]}], "debian": [{"lastseen": "2022-07-27T19:34:45", "description": "- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5171-1 security@debian.org\nhttps://www.debian.org/security/ Moritz Muehlenhoff\nJune 27, 2022 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : squid\nCVE ID : CVE-2021-28116 CVE-2021-46784\n\nMultiple security issues were discovered in the Squid proxy caching\nserver:\n\nCVE-2021-28116\n\n Amos Jeffries discovered an information leak if WCCPv2 is enabled\n\nCVE-2021-46784\n\n Joshua Rogers discovered that an error in parsing Gopher server\n responses may result in denial of service\n\n\nFor the oldstable distribution (buster), these problems have been fixed\nin version 4.6-1+deb10u7.\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 4.13-10+deb11u1.\n\nWe recommend that you upgrade your squid packages.\n\nFor the detailed security status of squid please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/squid\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": "MEDIUM", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2022-06-27T18:45:27", "type": "debian", "title": "[SECURITY] [DSA 5171-1] squid security update", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 8.6, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "MEDIUM", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 4.3, "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-46784"], "modified": "2022-06-27T18:45:27", "id": "DEBIAN:DSA-5171-1:89438", "href": "https://lists.debian.org/debian-security-announce/2022/msg00139.html", "cvss": {"score": 4.3, "vector": "AV:N/AC:M/Au:N/C:P/I:N/A:N"}}], "gentoo": [{"lastseen": "2022-01-17T18:59:20", "description": "### Background\n\nSquid is a full-featured Web proxy cache designed to run on Unix systems. It supports proxying and caching of HTTP, FTP, and other URLs, as well as SSL support, cache hierarchies, transparent caching, access control lists and many other features. \n\n### Description\n\nMultiple vulnerabilities have been discovered in Squid. Please review the CVE identifiers referenced below for details. \n\n### Impact\n\nA remote attacker could send a specially crafted request, possibly resulting in a Denial of Service condition or information leak. \n\n### Workaround\n\nThere is no known workaround at this time.\n\n### Resolution\n\nAll Squid users should upgrade to the latest version:\n \n \n # emerge --sync\n # emerge --ask --oneshot --verbose \">=net-proxy/squid-4.15\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 8.6, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 4.0}, "published": "2021-05-26T00:00:00", "type": "gentoo", "title": "Squid: Multiple vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2020-25097", "CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808"], "modified": "2021-05-26T00:00:00", "id": "GLSA-202105-14", "href": "https://security.gentoo.org/glsa/202105-14", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:P/I:N/A:N"}}], "fedora": [{"lastseen": "2021-07-28T14:46:52", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-06-11T01:16:02", "type": "fedora", "title": "[SECURITY] Fedora 34 Update: squid-5.0.6-1.fc34", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-11T01:16:02", "id": "FEDORA:CC54030AE7DD", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2021-07-28T14:46:52", "description": "Squid is a high-performance proxy caching server for Web clients, supporting FTP, gopher, and HTTP data objects. Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process. Squid keeps meta data and especially hot objects cached in RAM, caches DNS lookups, supports non-blocking DNS lookups, and implements negative caching of failed requests. Squid consists of a main server program squid, a Domain Name System lookup program (dnsserver), a program for retrieving FTP data (ftpget), and some management and client tools. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "baseScore": 7.5, "privilegesRequired": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2021-06-11T01:20:16", "type": "fedora", "title": "[SECURITY] Fedora 33 Update: squid-4.15-1.fc33", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-06-11T01:20:16", "id": "FEDORA:C4C0D3091C28", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}], "photon": [{"lastseen": "2023-02-10T03:18:09", "description": "Updates of ['squid'] packages of Photon OS have been released.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-07-20T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-4.0-0063", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-07-20T00:00:00", "id": "PHSA-2021-4.0-0063", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-63", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}, {"lastseen": "2022-05-12T18:55:44", "description": "Updates of ['squid'] packages of Photon OS have been released.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "NONE", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2021-07-19T00:00:00", "type": "photon", "title": "Important Photon OS Security Update - PHSA-2021-0063", "bulletinFamily": "unix", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "NONE", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 5.0, "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 2.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2021-28116", "CVE-2021-28651", "CVE-2021-28652", "CVE-2021-28662", "CVE-2021-31806", "CVE-2021-31807", "CVE-2021-31808", "CVE-2021-33620"], "modified": "2021-07-19T00:00:00", "id": "PHSA-2021-0063", "href": "https://github.com/vmware/photon/wiki/Security-Update-4.0-63", "cvss": {"score": 5.0, "vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P"}}]}
Moderate: squid:4 security and bug fix update
