CVE-2023-31248

NameCVE-2023-31248
DescriptionLinux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3512-1, DSA-5453-1

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)5.10.218-1fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.90-1fixed
sid, trixie6.8.12-1fixed
linux-5.10 (PTS)buster (security)5.10.216-1~deb10u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster(not affected)
linuxsourcebullseye5.10.179-2DSA-5453-1
linuxsourcebookworm6.1.38-1
linuxsource(unstable)6.4.4-1
linux-5.10sourcebuster5.10.179-3~deb10u1DLA-3512-1

Notes

[buster] - linux <not-affected> (Vulnerable code not present)
https://www.openwall.com/lists/oss-security/2023/07/05/2
https://www.zerodayinitiative.com/advisories/ZDI-23-899/

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