CVE-2021-3472

NameCVE-2021-3472
DescriptionA flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2627-1, DSA-4893-1
NVD severityhigh

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xorg-server (PTS)stretch2:1.19.2-1+deb9u5vulnerable
stretch (security)2:1.19.2-1+deb9u8fixed
buster, buster (security)2:1.20.4-1+deb10u3fixed
bullseye, sid2:1.20.11-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xorg-serversourcestretch2:1.19.2-1+deb9u8DLA-2627-1
xorg-serversourcebuster2:1.20.4-1+deb10u3DSA-4893-1
xorg-serversource(unstable)2:1.20.11-1

Notes

Fixed by: https://gitlab.freedesktop.org/xorg/xserver/-/commit/7aaf54a1884f71dc363f0b884e57bcb67407a6cd
https://lists.x.org/archives/xorg-announce/2021-April/003080.html

Search for package or bug name: Reporting problems