USN-6168-1: libx11 vulnerability
15 June 2023
libx11 could be made to crash if it received specially crafted network traffic.
Releases
Packages
- libx11 - X11 client-side library
Details
Gregory James Duck discovered that libx11 incorrectly handled certain
Request, Event, or Error IDs. If a user were tricked into connecting to a
malicious X Server, a remote attacker could possibly use this issue to
cause libx11 to crash, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.04
Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04
After a standard system update you need to reboot your computer to make all
the necessary changes.
References
Related notices
- USN-6168-2: libx11-data, libx11-xcb1, libx11-doc, libx11-xcb-dev, libx11, libx11-dev, libx11-6