Ubuntu 20.04 LTS USN-4905-1 Critical: X.Org X Server DoS
ubuntu
April 13, 2021
X.Org X Server could be made to crash or run programs if it received specially crafted input.
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: xserver-xorg-core 2:1.20.9-2ubuntu1.3 Ubuntu 20.04 LTS: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2 Ubuntu 18.04 LTS: xserver-xorg-core 2:1.19.6-1ubuntu4.9 xserver-xorg-core-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.5 Ubuntu 16.04 LTS: xserver-xorg-core 2:1.18.4-0ubuntu0.12 xserver-xorg-core-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6 After a standard system update you need to reboot your computer to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-4905-1
CVE-2021-3472
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April 13, 2021
Package Information
https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.9-2ubuntu1.3 https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.9-2ubuntu1.2~20.04.2 https://launchpad.net/ubuntu/+source/xorg-server/2:1.19.6-1ubuntu4.9 https://launchpad.net/ubuntu/+source/xorg-server-hwe-18.04/2:1.20.8-2ubuntu2.2~18.04.5 https://launchpad.net/ubuntu/+source/xorg-server/2:1.18.4-0ubuntu0.12 https://launchpad.net/ubuntu/+source/xorg-server-hwe-16.04/2:1.19.6-1ubuntu4.1~16.04.6
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