ipv6: sr: Fix MAC comparison to be constant-time

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-39702
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-05 18:15:47 UTC
Updated2026-05-12 13:17:06 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

Risk And Classification

Primary CVSS: v3.1 7 HIGH from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-203

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c ff55a452d56490047f5233cc48c5d933f8586884 git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c 3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0 git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c 86b6d34717fe0570afce07ee79b8eeb40341f831 git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c 3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3 git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c b3967c493799e63f648e9c7b6cb063aa2aed04e7 git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c f7878d47560d61e3f370aca3cebb8f42a55b990a git Not specified
CNA Linux Linux affected bf355b8d2c30a289232042cacc1cfaea4923936c a458b2902115b26a25d67393b12ddd57d1216aaa git Not specified
CNA Linux Linux affected 4.10 Not specified
CNA Linux Linux unaffected 4.10 semver Not specified
CNA Linux Linux unaffected 5.10.249 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.190 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.149 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.103 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.44 6.12.* semver Not specified
CNA Linux Linux unaffected 6.16.4 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f7878d47560d61e3f370aca3cebb8f42a55b990a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a458b2902115b26a25d67393b12ddd57d1216aaa 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/3ddd55cf19ed6cc62def5e3af10c2a9df1b861c3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ff55a452d56490047f5233cc48c5d933f8586884 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/86b6d34717fe0570afce07ee79b8eeb40341f831 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3b348c9c8d2ca2c67559ffd0e258ae7e1107d4f0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b3967c493799e63f648e9c7b6cb063aa2aed04e7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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