CVE-2023-3773

NameCVE-2023-3773
DescriptionA flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data to userspace.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3623-1, DSA-5492-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)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
sid6.7.7-1fixed
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
linuxsourcebuster(not affected)
linuxsourcebullseye5.10.197-1
linuxsourcebookworm6.1.52-1DSA-5492-1
linuxsource(unstable)6.4.13-1
linux-5.10sourcebuster5.10.197-1~deb10u1DLA-3623-1

Notes

[buster] - linux <not-affected> (Vulnerable code not present)
https://lore.kernel.org/all/20230723074110.3705047-1-linma@zju.edu.cn/T/#u

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