USN-4656-2: X.Org X Server vulnerabilities
7 December 2020
Several security issues were fixed in X.Org X Server.
Releases
Packages
- xorg-server - X.Org X11 server
Details
USN-4656-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server XKB extension
incorrectly handled certain inputs. A local attacker could possibly use
this issue to escalate privileges.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04
After a standard system update you need to reboot your computer to make all
the necessary changes.
References
Related notices
- USN-4656-1: xserver-xephyr-hwe-16.04, xnest, xserver-xorg-dev, xwayland-hwe-16.04, xwayland-hwe-18.04, xserver-xorg-dev-hwe-18.04, xserver-xorg-xmir, xorg-server-source-hwe-18.04, xorg-server-source, xserver-xorg-dev-hwe-16.04, xorg-server-source-hwe-16.04, xmir-hwe-16.04, xserver-xorg-core, xserver-xorg-legacy, xorg-server-hwe-16.04, xwayland, xserver-xorg-core-hwe-18.04, xserver-xorg-legacy-hwe-18.04, xserver-xorg-core-hwe-16.04, xserver-xorg-core-udeb, xdmx-tools, xorg-server, xserver-xephyr-hwe-18.04, xserver-xephyr, xserver-xorg-legacy-hwe-16.04, xmir, xdmx, xserver-common, xvfb, xorg-server-hwe-18.04