{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-27050", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-19T14:20:24.213Z", "datePublished": "2024-05-01T12:54:35.555Z", "dateUpdated": "2026-08-05T11:29:13.148Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:29:13.148Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibbpf: Use OPTS_SET() macro in bpf_xdp_query()\n\nWhen the feature_flags and xdp_zc_max_segs fields were added to the libbpf\nbpf_xdp_query_opts, the code writing them did not use the OPTS_SET() macro.\nThis causes libbpf to write to those fields unconditionally, which means\nthat programs compiled against an older version of libbpf (with a smaller\nsize of the bpf_xdp_query_opts struct) will have its stack corrupted by\nlibbpf writing out of bounds.\n\nThe patch adding the feature_flags field has an early bail out if the\nfeature_flags field is not part of the opts struct (via the OPTS_HAS)\nmacro, but the patch adding xdp_zc_max_segs does not. For consistency, this\nfix just changes the assignments to both fields to use the OPTS_SET()\nmacro." } ], "metrics": [ { "cvssV3_1": { "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" }, "scenarios": [ { "lang": "en", "value": "AV:L - The defect is in the userspace libbpf library and is reached by a local process calling bpf_xdp_query(), which issues local netlink (RTM_GETLINK / netdev genl) requests. No remote or adjacent network input reaches the vulnerable write.\nAC:L - The out-of-bounds write is fully deterministic — any binary compiled against a pre-6.6 bpf_xdp_query_opts (sz==40) triggers the 4-byte write at offset 40 on every successful query, with no race or memory-layout luck required.\nPR:L - An unprivileged local user can execute an affected libbpf consumer; the RTM_GETLINK dump and NETDEV_CMD_DEV_GET queries on the path require no capabilities, and the forged-netlink-reply amplification also needs only ordinary local user access.\nUI:N - The attacker runs the affected libbpf-linked program directly, and the corrupting write happens automatically inside bpf_xdp_query() with no victim action required.\nS:U - The out-of-bounds write lands on the calling process's own stack; libbpf and its caller are the same security authority, and no sandbox, VM, or IOMMU boundary is crossed.\nC:H - The bug is an out-of-bounds write whose value is attacker-influenceable via a forged netlink reply (libbpf_netlink_recv() never verifies the sender is the kernel); corrupting an adjacent stack local such as a length or index in a privileged XDP management process can be leveraged to disclose that process's memory.\nI:H - This is a stack out-of-bounds write of a 32-bit value past the caller's bpf_xdp_query_opts object, and per the OOB-write mapping it constitutes memory corruption of adjacent state that can be steered toward control-flow or data-flow tampering in the affected process.\nA:H - Overwriting four bytes beyond the caller's stack object can clobber an adjacent local or stack metadata, causing __stack_chk_fail aborts or SIGSEGV crashes of the affected application, and the write occurs on every query so it is repeatable at will." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "tools/lib/bpf/netlink.c" ], "versions": [ { "version": "13ce2daa259a3bfbc9a5aeeee8b9a87058703731", "lessThan": "fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c", "status": "affected", "versionType": "git" }, { "version": "13ce2daa259a3bfbc9a5aeeee8b9a87058703731", "lessThan": "682ddd62abd4bdcee7584246903e7a2df005fe0d", "status": "affected", "versionType": "git" }, { "version": "13ce2daa259a3bfbc9a5aeeee8b9a87058703731", "lessThan": "cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e", "status": "affected", "versionType": "git" }, { "version": "13ce2daa259a3bfbc9a5aeeee8b9a87058703731", "lessThan": "92a871ab9fa59a74d013bc04f321026a057618e7", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "tools/lib/bpf/netlink.c" ], "versions": [ { "version": "6.6", "status": "affected" }, { "version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.23", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.7.11", "lessThanOrEqual": "6.7.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.2", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.6.23" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.7.11" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.8.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c" }, { "url": "https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d" }, { "url": "https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e" }, { "url": "https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7" } ], "title": "libbpf: Use OPTS_SET() macro in bpf_xdp_query()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "CWE-787 Out-of-bounds Write" } ] } ], "affected": [ { "vendor": "linux", "product": "acrn", "cpes": [ "cpe:2.3:o:linux:acrn:*:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.8.2", "status": "unaffected" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:a:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.7.11", "status": "unaffected" } ] }, { "vendor": "linux", "product": "linux_kernel", "cpes": [ "cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "versions": [ { "version": "6.6.23", "status": "unaffected" } ] } ], "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "timestamp": "2024-05-16T18:27:13.162013Z", "id": "CVE-2024-27050", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-05T20:58:16.092Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T00:21:05.913Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/fa5bef5e80c6a3321b2b1a7070436f3bc5daf07c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/682ddd62abd4bdcee7584246903e7a2df005fe0d", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/cd3be9843247edb8fc6fcd8d8237cbce2bc19f5e", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/92a871ab9fa59a74d013bc04f321026a057618e7", "tags": [ "x_transferred" ] } ] } ] } }