CVE-2022-27666

NameCVE-2022-27666
DescriptionA heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5127-1, DSA-5173-1, ELA-652-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie, jessie (lts)3.16.84-1vulnerable
stretch (security)4.9.320-2fixed
stretch (lts), stretch4.9.320-3fixed
buster4.19.249-2fixed
buster (security)4.19.304-1fixed
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.69-1fixed
trixie6.6.15-2fixed
sid6.7.9-2fixed
linux-4.19 (PTS)jessie, jessie (lts)4.19.304-1~deb8u1fixed
stretch (security)4.19.232-1~deb9u1vulnerable
stretch (lts), stretch4.19.304-1~deb9u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie(unfixed)end-of-life
linuxsourcestretch(not affected)
linuxsourcebuster4.19.249-2DSA-5173-1
linuxsourcebullseye5.10.113-1DSA-5127-1
linuxsource(unstable)5.16.18-1
linux-4.19sourcejessie4.19.249-2~deb8u1ELA-652-1
linux-4.19sourcestretch4.19.249-2~deb9u1ELA-652-1

Notes

[stretch] - linux <not-affected> (Vulnerable code introduced later)
https://git.kernel.org/linus/ebe48d368e97d007bfeb76fcb065d6cfc4c96645 (5.17-rc8)

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