Ubuntu 24.10 USN-7299-1 moderate: X.Org X Server DoS Issues

ubuntu

February 25, 2025

Several security issues were fixed in X.Org X Server.

Summary

Several security issues were fixed in X.Org X Server.

Software Description:

- xorg-server: X.Org X11 server

- xwayland: X server for running X clients under Wayland

Details:

Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled

certain memory operations. An attacker could use these issues to cause the

X Server to crash, leading to a denial of service, or possibly execute

arbitrary code.

Topics Covered

security advisory denial of service software update Ubuntu moderate severity arbitrary code ubuntu xorg-server X server X.Org doS attack xwayland

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.10
   xserver-xorg-core               2:21.1.13-2ubuntu1.2
   xwayland                        2:24.1.2-1ubuntu0.4

Ubuntu 24.04 LTS
   xserver-xorg-core               2:21.1.12-1ubuntu1.2
   xwayland                        2:23.2.6-1ubuntu0.4

Ubuntu 22.04 LTS
   xserver-xorg-core               2:21.1.4-2ubuntu1.7~22.04.13
   xwayland                        2:22.1.1-1ubuntu0.17

Ubuntu 20.04 LTS
   xserver-xorg-core               2:1.20.13-1ubuntu1~20.04.19
   xwayland                        2:1.20.13-1ubuntu1~20.04.19

After a standard system update you need to reboot your computer to make all
the necessary changes.