USN-4966-1: libx11 vulnerability
25 May 2021
libx11 could allow unintended access to services.
- libx11 - X11 client-side library
It was discovered that libx11 incorrectly validated certain parameter
lengths. A remote attacker could possibly use this issue to trick libx11
into emitting extra X protocol requests.
The problem can be corrected by updating your system to the following package versions:
After a standard system update you need to reboot your computer to make
all the necessary changes.
- USN-4966-2: libx11-dev, libx11-data, libx11-doc, libx11-6, libx11-6-udeb, libx11, libx11-xcb-dev, libx11-xcb1