==========================================================================
Ubuntu Security Notice USN-7573-1
June 17, 2025

xorg-server, xwayland vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

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:

Nils Emmerich 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, obtain sensitive
information, or possibly execute arbitrary code.

Update instructions:

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

Ubuntu 25.04
  xserver-xorg-core               2:21.1.16-1ubuntu1.1
  xwayland                        2:24.1.6-1ubuntu0.1

Ubuntu 24.10
  xserver-xorg-core               2:21.1.13-2ubuntu1.4
  xwayland                        2:24.1.2-1ubuntu0.6

Ubuntu 24.04 LTS
  xserver-xorg-core               2:21.1.12-1ubuntu1.4
  xwayland                        2:23.2.6-1ubuntu0.6

Ubuntu 22.04 LTS
  xserver-xorg-core               2:21.1.4-2ubuntu1.7~22.04.15
  xwayland                        2:22.1.1-1ubuntu0.19

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

References:
  https://ubuntu.com/security/notices/USN-7573-1
  CVE-2025-49175, CVE-2025-49176, CVE-2025-49177, CVE-2025-49178,
  CVE-2025-49179, CVE-2025-49180

Package Information:
  https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.16-1ubuntu1.1
  https://launchpad.net/ubuntu/+source/xwayland/2:24.1.6-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.13-2ubuntu1.4
  https://launchpad.net/ubuntu/+source/xwayland/2:24.1.2-1ubuntu0.6
  https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.12-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/xwayland/2:23.2.6-1ubuntu0.6
  https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.4-2ubuntu1.7~22.04.15
  https://launchpad.net/ubuntu/+source/xwayland/2:22.1.1-1ubuntu0.19