CVE-2025-40204

NameCVE-2025-40204
DescriptionIn the Linux kernel, the following vulnerability has been resolved: sctp: 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1vulnerable
bullseye (security)5.10.244-1vulnerable
bookworm6.1.148-1vulnerable
bookworm (security)6.1.158-1fixed
trixie6.12.43-1vulnerable
trixie (security)6.12.48-1vulnerable
forky6.16.12-2vulnerable
sid6.17.7-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebookworm6.1.158-1
linuxsourcetrixie6.12.57-1
linuxsource(unstable)6.17.6-1

Notes

https://git.kernel.org/linus/dd91c79e4f58fbe2898dac84858033700e0e99fb (6.18-rc1)

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