CVE-2023-42755

NameCVE-2023-42755
DescriptionA flaw was found in the IPv4 Resource Reservation Protocol (RSVP) classifier in the Linux kernel. The xprt pointer may go beyond the linear part of the skb, leading to an out-of-bounds read in the `rsvp_classify` function. This issue may allow a local user to crash the system and cause a denial of service.
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, DLA-3710-1

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)6.1.85-1fixed
trixie6.6.15-2fixed
sid6.7.9-2fixed
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
linuxsourcebuster4.19.304-1DLA-3710-1
linuxsourcebullseye5.10.197-1
linuxsourcebookworm6.1.55-1
linuxsource(unstable)6.3.7-1
linux-5.10sourcebuster5.10.197-1~deb10u1DLA-3623-1

Notes

https://lore.kernel.org/all/CADW8OBtkAf+nGokhD9zCFcmiebL1SM8bJp_oo=pE02BknG9qnQ@mail.gmail.com/
https://git.kernel.org/linus/265b4da82dbf5df04bee5a5d46b7474b1aaf326a (6.3-rc1)

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