CVE-2023-23454

NameCVE-2023-23454
Descriptioncbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results).
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDSA-5324-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2vulnerable
buster (security)4.19.269-1vulnerable
bullseye5.10.158-2vulnerable
bullseye (security)5.10.162-1fixed
bookworm6.1.7-1fixed
sid6.1.8-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebullseye5.10.162-1DSA-5324-1
linuxsource(unstable)6.1.7-1

Notes

https://git.kernel.org/linus/caa4b35b4317d5147b3ab0fbdc9c075c7d2e9c12

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