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Fedora 44 xorg-x11-server Critical Updates for ZDI-CAN-30136 to 30168

fedora
Calendar Grey June 2, 2026
Dist Fedora Esm H88
Fedora 44 released xorg-x11-server updates with security fixes addressing critical flaws. Install via dnf.
Update to xserver 21.1.23, security fixes for: ZDI-CAN-30136, ZDI-CAN-30159, ZDI-CAN-30160, ZDI-CAN-30161, ZDI-CAN-30163, ZDI-CAN-30164, ZDI-CAN-30165, ZDI-CAN-30168

Summary

X.Org X11 X server.

Update Information:

Update to xserver 21.1.23, security fixes for: ZDI-CAN-30136, ZDI-CAN-30159, ZDI-CAN-30160, ZDI-CAN-30161, ZDI-CAN-30163, ZDI-CAN-30164, ZDI-CAN-30165, ZDI-CAN-30168

Topics%20covered

Topics Covered

security advisory denial of service fedora update critical Xorg X11 Server

Change Log

* Tue Jun 2 2026 Peter Hutterer - 21.1.23-1 - Update to xserver 21.1.23 Security fixes for: ZDI-CAN-30136, ZDI-CAN-30159, ZDI-CAN-30160, ZDI-CAN-30161, ZDI-CAN-30163, ZDI-CAN-30164, ZDI-CAN-30165, ZDI-CAN-30168

References

Fedora Update Notification FEDORA-2026-7e38f57cef 2026-06-03 00:50:32.709810+00:00 Name : xorg-x11-server Product : Fedora 44 Version : 21.1.23 Release : 1.fc44 URL : http://www.x.org Summary : X.Org X11 X server Description : X.Org X11 X server.

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-7e38f57cef' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
critical
Lowest
Low
Medium
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Critical

Name: xorg-x11-server
Product: Fedora 44
Version: 21.1.23
Release: 1.fc44
URL: http://www.x.org
Summary: X.Org X11 X server

Topics%20covered

Topics Covered

security advisory denial of service fedora update critical Xorg X11 Server

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