CVE-2023-35788

NameCVE-2023-35788
DescriptionAn issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7. It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets. This may result in denial of service or privilege escalation.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3508-1, DLA-3623-1, DSA-5448-1, DSA-5480-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
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
sid, trixie6.6.15-2fixed
linux-5.10 (PTS)buster (security)5.10.209-2~deb10u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.289-1DLA-3508-1
linuxsourcebullseye5.10.191-1DSA-5480-1
linuxsourcebookworm6.1.37-1DSA-5448-1
linuxsource(unstable)6.3.7-1
linux-5.10sourcebuster5.10.197-1~deb10u1DLA-3623-1

Notes

https://www.openwall.com/lists/oss-security/2023/06/07/1
https://git.kernel.org/linus/4d56304e5827c8cc8cc18c75343d283af7c4825c (6.4-rc5)

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