Jan-Niklas Sohn discovered that multiple input validation failures in the Xkb extension of the X.org X server may result in privilege escalation if the X server is running privileged. For the stable distribution (bullseye), these problems have been fixed in version 2:1.20.11-1+deb11u2. 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
Jan-Niklas Sohn discovered that multiple input validation failures in the Xkb extension of the X.org X server may result in privilege escalation if the X server is running privileged.
For the stable distribution (bullseye), these problems have been fixed in version 2:1.20.11-1+deb11u2.
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