Ubuntu 21.10 USN-5193-1 Critical: X.Org X Server Denial Of Service
ubuntu
December 14, 2021
Several security issues were fixed in X.Org X Server.
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: xserver-xorg-core 2:1.20.13-1ubuntu1.1 xwayland 2:21.1.2-0ubuntu1.1 Ubuntu 21.04: xserver-xorg-core 2:1.20.11-1ubuntu1.2 xwayland 2:21.1.1-0ubuntu1.1 Ubuntu 20.04 LTS: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2 Ubuntu 18.04 LTS: xserver-xorg-core 2:1.19.6-1ubuntu4.10 xserver-xorg-core-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.6 After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-5193-1
CVE-2021-4008, CVE-2021-4009, CVE-2021-4010, CVE-2021-4011
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December 14, 2021
Package Information
https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.13-1ubuntu1.1 https://launchpad.net/ubuntu/+source/xwayland/2:21.1.2-0ubuntu1.1 https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.11-1ubuntu1.2 https://launchpad.net/ubuntu/+source/xwayland/2:21.1.1-0ubuntu1.1 https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.13-1ubuntu1~20.04.2 https://launchpad.net/ubuntu/+source/xorg-server/2:1.19.6-1ubuntu4.10 https://launchpad.net/ubuntu/+source/xorg-server-hwe-18.04/2:1.20.8-2ubuntu2.2~18.04.6
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