CVE-2022-46344

NameCVE-2022-46344
DescriptionA vulnerability was found in X.Org. The issue occurs because the handler for the XIChangeProperty request has a length-validation issue, resulting in out-of-bounds memory reads and potential information disclosure. This flaw can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
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)
ReferencesDLA-3256-1, DSA-5304-1
Debian Bugs1026071

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xorg-server (PTS)buster2:1.20.4-1+deb10u4vulnerable
buster (security)2:1.20.4-1+deb10u7fixed
bullseye2:1.20.11-1+deb11u3vulnerable
bullseye (security)2:1.20.11-1+deb11u4fixed
bookworm, sid2:21.1.6-1fixed
xwayland (PTS)bookworm, sid2:22.1.7-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xorg-serversourcebuster2:1.20.4-1+deb10u7DLA-3256-1
xorg-serversourcebullseye2:1.20.11-1+deb11u4DSA-5304-1
xorg-serversource(unstable)2:21.1.5-11026071
xwaylandsource(unstable)2:22.1.6-1

Notes

https://lists.x.org/archives/xorg-announce/2022-December/003302.html
https://gitlab.freedesktop.org/xorg/xserver/commit/8f454b793e1f13c99872c15f0eed1d7f3b823fe8

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