{ "id": "CVE-2023-3776", "sourceIdentifier": "cve-coordination@google.com", "published": "2023-07-21T21:15:11.973", "lastModified": "2025-02-13T17:16:58.960", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.\n\nIf tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.\n\nWe recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f." } ], "metrics": { "cvssMetricV31": [ { "source": "cve-coordination@google.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.9 } ] }, "weaknesses": [ { "source": "cve-coordination@google.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-416" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-416" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "4.14.322", "matchCriteriaId": "E7A8308C-F4B2-4261-B590-BCD968EF650E" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "4.19.291", "matchCriteriaId": "D2D2CA9F-4CC4-4AF5-8C6D-E58415AB782E" }, { "vulnerable": true, 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"923F6AEA-C2EF-4B08-B038-69A18F3D41F8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:*", "matchCriteriaId": "0B3E6E4D-E24E-4630-B00C-8C9901C597B0" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73" }, { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*", "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED" }, { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*", "matchCriteriaId": "46D69DCC-AE4D-4EA5-861C-D60951444C6C" } ] } ] } ], "references": [ { "url": "http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html", "source": "cve-coordination@google.com", "tags": [ "Third Party Advisory", "VDB Entry" ] }, { "url": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html", "source": "cve-coordination@google.com", "tags": [ "Third Party Advisory", "VDB Entry" ] }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f", "source": "cve-coordination@google.com", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://kernel.dance/0323bce598eea038714f941ce2b22541c46d488f", "source": "cve-coordination@google.com", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html", "source": "cve-coordination@google.com", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html", "source": "cve-coordination@google.com", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20240202-0003/", "source": "cve-coordination@google.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2023/dsa-5480", "source": "cve-coordination@google.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2023/dsa-5492", "source": "cve-coordination@google.com", "tags": [ "Third Party Advisory" ] }, { "url": "http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory", "VDB Entry" ] }, { "url": "http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Third Party Advisory", "VDB Entry" ] }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=0323bce598eea038714f941ce2b22541c46d488f", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Patch", "Vendor Advisory" 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