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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3349-1, DLA-3403-1, DSA-5324-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye (security), bullseye5.10.218-1fixed
bookworm6.1.94-1fixed
bookworm (security)6.1.90-1fixed
trixie6.9.7-1fixed
sid6.9.8-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcebuster4.19.282-1DLA-3403-1
linuxsourcebullseye5.10.162-1DSA-5324-1
linuxsource(unstable)6.1.7-1
linux-5.10sourcebuster5.10.162-1~deb10u1DLA-3349-1

Notes

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

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