{"osv": [{"lastseen": "2023-01-17T22:35:57", "description": "\nMultiple vulnerabilities have been discovered in the Xen hypervisor, which\ncould result in privilege escalation. In addition this updates provides\nmitigations for the Retbleed speculative execution attack and the\nMMIO stale data vulnerabilities.\n\n\nFor additional information please refer to the following pages:\n<https://xenbits.xen.org/xsa/advisory-404.html>\n<https://xenbits.xen.org/xsa/advisory-407.html>\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 4.14.5+24-g87d90d511c-1.\n\n\nWe recommend that you upgrade your xen packages.\n\n\nFor the detailed security status of xen please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/xen](https://security-tracker.debian.org/tracker/xen)\n\n\n", "cvss3": {"exploitabilityScore": 0.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "baseScore": 6.7, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2022-07-15T00:00:00", "type": "osv", "title": "xen - security update", "bulletinFamily": "software", "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-2022-21123", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-23825", "CVE-2022-26362", "CVE-2022-26363", "CVE-2022-26364", "CVE-2022-29900"], "modified": "2023-01-17T22:35:52", "id": "OSV:DSA-5184-1", "href": "https://osv.dev/vulnerability/DSA-5184-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2022-10-29T06:46:56", "description": "Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33742", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:53", "id": "OSV:CVE-2022-33742", "href": "https://osv.dev/vulnerability/CVE-2022-33742", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:53", "description": "Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33740", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:51", "id": "OSV:CVE-2022-33740", "href": "https://osv.dev/vulnerability/CVE-2022-33740", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:53", "description": "Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-26365", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:51", "id": "OSV:CVE-2022-26365", "href": "https://osv.dev/vulnerability/CVE-2022-26365", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-10-29T06:46:53", "description": "Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 7.1, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2022-07-05T13:15:00", "type": "osv", "title": "CVE-2022-33741", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "NONE", "baseScore": 3.6, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33741", "CVE-2022-33742"], "modified": "2022-10-29T06:46:52", "id": "OSV:CVE-2022-33741", "href": "https://osv.dev/vulnerability/CVE-2022-33741", "cvss": {"score": 3.6, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:P"}}, {"lastseen": "2022-08-10T07:07:18", "description": "\nThis update ships updated CPU microcode for some types of Intel CPUs and\nprovides mitigations for security vulnerabilities.\n\n\n* [CVE-2022-21123](https://security-tracker.debian.org/tracker/CVE-2022-21123),\n [CVE-2022-21125](https://security-tracker.debian.org/tracker/CVE-2022-21125),\n [CVE-2022-21127](https://security-tracker.debian.org/tracker/CVE-2022-21127),\n [CVE-2022-21166](https://security-tracker.debian.org/tracker/CVE-2022-21166)\nVarious researchers discovered flaws in Intel processors,\n collectively referred to as MMIO Stale Data vulnerabilities, which\n may result in information leak to local users.\n\n\nFor details please refer to\n [\\\n https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html](https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/technical-documentation/processor-mmio-stale-data-vulnerabilities.html)\n* [CVE-2022-21151](https://security-tracker.debian.org/tracker/CVE-2022-21151)\nAlysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi\n discovered that for some Intel processors optimization removal or\n modification of security-critical code may result in information\n disclosure to local users.\n\n\nFor the oldstable distribution (buster), these problems have been fixed\nin version 3.20220510.1~deb10u1.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 3.20220510.1~deb11u1.\n\n\nWe recommend that you upgrade your intel-microcode packages.\n\n\nFor the detailed security status of intel-microcode please refer to its\nsecurity tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/intel-microcode](https://security-tracker.debian.org/tracker/intel-microcode)\n\n\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 5.5, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 3.6}, "published": "2022-07-06T00:00:00", "type": "osv", "title": "intel-microcode - security update", "bulletinFamily": "software", "cvss2": {"severity": "LOW", "exploitabilityScore": 3.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "baseScore": 2.1, "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0", "accessVector": "LOCAL", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-21151", "CVE-2022-21125", "CVE-2022-21166", "CVE-2022-21127", "CVE-2022-21123"], "modified": "2022-08-10T07:07:11", "id": "OSV:DSA-5178-1", "href": "https://osv.dev/vulnerability/DSA-5178-1", "cvss": {"score": 2.1, "vector": "AV:L/AC:L/Au:N/C:P/I:N/A:N"}}, {"lastseen": "2022-08-10T07:07:15", "description": "\nSeveral vulnerabilities have been discovered in the Linux kernel that may\nlead to privilege escalation, denial of service or information leaks:\n\n\n* [CVE-2021-33655](https://security-tracker.debian.org/tracker/CVE-2021-33655)\nA user with access to a framebuffer console driver could cause a\n memory out-of-bounds write via the FBIOPUT\\_VSCREENINFO ioctl.\n* [CVE-2022-2318](https://security-tracker.debian.org/tracker/CVE-2022-2318)\nA use-after-free in the Amateur Radio X.25 PLP (Rose) support may\n result in denial of service.\n* [CVE-2022-26365](https://security-tracker.debian.org/tracker/CVE-2022-26365),\n [CVE-2022-33740](https://security-tracker.debian.org/tracker/CVE-2022-33740),\n [CVE-2022-33741](https://security-tracker.debian.org/tracker/CVE-2022-33741),\n [CVE-2022-33742](https://security-tracker.debian.org/tracker/CVE-2022-33742)\nRoger Pau Monne discovered that Xen block and network PV device\n frontends don't zero out memory regions before sharing them with the\n backend, which may result in information disclosure. Additionally it\n was discovered that the granularity of the grant table doesn't permit\n sharing less than a 4k page, which may also result in information\n disclosure.\n* [CVE-2022-33743](https://security-tracker.debian.org/tracker/CVE-2022-33743)\nJan Beulich discovered that incorrect memory handling in the Xen\n network backend may lead to denial of service.\n* [CVE-2022-33744](https://security-tracker.debian.org/tracker/CVE-2022-33744)\nOleksandr Tyshchenko discovered that ARM Xen guests can cause a denial\n of service to the Dom0 via paravirtual devices.\n* [CVE-2022-34918](https://security-tracker.debian.org/tracker/CVE-2022-34918)\nArthur Mongodin discovered a heap buffer overflow in the Netfilter\n subsystem which may result in local privilege escalation.\n\n\nFor the stable distribution (bullseye), these problems have been fixed in\nversion 5.10.127-2.\n\n\nWe recommend that you upgrade your linux packages.\n\n\nFor the detailed security status of linux please refer to\nits security tracker page at:\n[\\\nhttps://security-tracker.debian.org/tracker/linux](https://security-tracker.debian.org/tracker/linux)\n\n\n", "cvss3": {"exploitabilityScore": 1.8, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 7.8, "privilegesRequired": "LOW", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.1"}, "impactScore": 5.9}, "published": "2022-07-26T00:00:00", "type": "osv", "title": "linux - security update", "bulletinFamily": "software", "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"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2022-2318", "CVE-2021-33655", "CVE-2022-26365", "CVE-2022-33740", "CVE-2022-33742", "CVE-2022-33741", "CVE-2022-33743", "CVE-2022-34918", "CVE-2022-33744"], "modified": "2022-08-10T07:07:12", "id": "OSV:DSA-5191-1", "href": "https://osv.dev/vulnerability/DSA-5191-1", "cvss": {"score": 7.2, "vector": "AV:L/AC:L/Au:N/C:C/I:C/A:C"}}], "nessus": [{"lastseen": "2023-01-26T00:00:44", "description": "The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5572-1 advisory.\n\n - Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740).\n Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742). 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[SECURITY] Fedora 35 Update: xen-4.15.3-2.fc35
