Debian Security Advisory
DSA-5027-1 xorg-server -- security update
- Date Reported:
- 21 Dec 2021
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2021-4008, CVE-2021-4009, CVE-2021-4010, CVE-2021-4011.
- More information:
Jan-Niklas Sohn discovered that multiple input validation failures in X server extensions of the X.org X server may result in privilege escalation if the X server is running privileged.
For the oldstable distribution (buster), these problems have been fixed in version 2:1.20.4-1+deb10u4.
For the stable distribution (bullseye), these problems have been fixed in version 2:1.20.11-1+deb11u1.
We recommend that you upgrade your xorg-server packages.
For the detailed security status of xorg-server please refer to its security tracker page at: https://security-tracker.debian.org/tracker/xorg-server