| { |
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| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix __dst_negative_advice() race\n\n__dst_negative_advice() does not enforce proper RCU rules when\nsk->dst_cache must be cleared, leading to possible UAF.\n\nRCU rules are that we must first clear sk->sk_dst_cache,\nthen call dst_release(old_dst).\n\nNote that sk_dst_reset(sk) is implementing this protocol correctly,\nwhile __dst_negative_advice() uses the wrong order.\n\nGiven that ip6_negative_advice() has special logic\nagainst RTF_CACHE, this means each of the three ->negative_advice()\nexisting methods must perform the sk_dst_reset() themselves.\n\nNote the check against NULL dst is centralized in\n__dst_negative_advice(), there is no need to duplicate\nit in various callbacks.\n\nMany thanks to Clement Lecigne for tracking this issue.\n\nThis old bug became visible after the blamed commit, using UDP sockets." |
| } |
| ], |
| "affected": [ |
| { |
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| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/net/dst_ops.h", |
| "include/net/sock.h", |
| "net/ipv4/route.c", |
| "net/ipv6/route.c", |
| "net/xfrm/xfrm_policy.c" |
| ], |
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| "status": "affected", |
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| "status": "affected", |
| "versionType": "git" |
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| "lessThan": "2295a7ef5c8c49241bff769e7826ef2582e532a6", |
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| "status": "affected", |
| "versionType": "git" |
| }, |
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| "lessThan": "5af198c387128a9d2ddd620b0f0803564a4d4508", |
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| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "include/net/dst_ops.h", |
| "include/net/sock.h", |
| "net/ipv4/route.c", |
| "net/ipv6/route.c", |
| "net/xfrm/xfrm_policy.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.6", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "4.6", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "4.19.316", |
| "lessThanOrEqual": "4.19.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.4.278", |
| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.219", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.161", |
| "lessThanOrEqual": "5.15.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.94", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.34", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.9.4", |
| "lessThanOrEqual": "6.9.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10", |
| "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": "4.6", |
| "versionEndExcluding": "4.19.316" |
| }, |
| { |
| "vulnerable": true, |
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| ] |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5af198c387128a9d2ddd620b0f0803564a4d4508" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e" |
| } |
| ], |
| "title": "net: fix __dst_negative_advice() race", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-36971", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
