{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-39702", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.115Z", "datePublished": "2025-09-05T17:21:08.674Z", "dateUpdated": "2025-09-05T17:21:08.674Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-09-05T17:21:08.674Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/seg6_hmac.c"], "versions": [{"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "86b6d34717fe0570afce07ee79b8eeb40341f831", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "b3967c493799e63f648e9c7b6cb063aa2aed04e7", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "f7878d47560d61e3f370aca3cebb8f42a55b990a", "status": "affected", "versionType": "git"}, {"version": "bf355b8d2c30a289232042cacc1cfaea4923936c", "lessThan": "a458b2902115b26a25d67393b12ddd57d1216aaa", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/ipv6/seg6_hmac.c"], "versions": [{"version": "4.10", "status": "affected"}, {"version": "0", "lessThan": "4.10", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.190", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.149", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.103", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.44", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.4", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17-rc3", "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": "4.10", "versionEndExcluding": "5.15.190"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.1.149"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.6.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.12.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.16.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.10", "versionEndExcluding": "6.17-rc3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0"}, {"url": "https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831"}, {"url": "https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3"}, {"url": "https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7"}, {"url": "https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a"}, {"url": "https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa"}], "title": "ipv6: sr: Fix MAC comparison to be constant-time", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: Fix MAC comparison to be constant-time\n\nTo prevent timing attacks, MACs need to be compared in constant time.\nUse the appropriate helper function for this."}], "id": "CVE-2025-39702", "lastModified": "2025-09-05T18:15:47.270", "metrics": {}, "published": "2025-09-05T18:15:47.270", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

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