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AUSCERT External Security Bulletin Redistribution
ESB-2022.6130
USN-5740-1: X.Org X Server vulnerabilities
24 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: X.Org X Server
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2022-3551 CVE-2022-3550
Original Bulletin:
https://ubuntu.com/security/notices/USN-5740-1
Comment: CVSS (Max): 8.8 CVE-2022-3550 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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USN-5740-1: X.Org X Server vulnerabilities
23 November 2022
Several security issues were fixed in X.Org X Server.
Releases
o Ubuntu 22.10
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
o Ubuntu 14.04 ESM
Packages
o xorg-server - X.Org X11 server
o xorg-server-hwe-16.04 - X.Org X11 server
o xorg-server-hwe-18.04 - X.Org X11 server
o xwayland - X server for running X clients under Wayland
Details
It was discovered that X.Org X Server incorrectly handled certain inputs.
An attacker could use these issues to cause the server to crash, resulting
in a denial of service, or possibly execute arbitrary code.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 22.10
o xserver-xorg-core - 2:21.1.4-2ubuntu1.1
o xwayland - 2:22.1.3-2ubuntu0.1
Ubuntu 22.04
o xserver-xorg-core - 2:21.1.3-2ubuntu2.3
o xwayland - 2:22.1.1-1ubuntu0.3
Ubuntu 20.04
o xserver-xorg-core - 2:1.20.13-1ubuntu1~20.04.4
o xwayland - 2:1.20.13-1ubuntu1~20.04.4
Ubuntu 18.04
o xserver-xorg-core - 2:1.19.6-1ubuntu4.12
o xwayland - 2:1.19.6-1ubuntu4.12
o xserver-xorg-core-hwe-18.04 - 2:1.20.8-2ubuntu2.2~18.04.8
Ubuntu 16.04
o xwayland - 2:1.18.4-0ubuntu0.12+esm4
Available with Ubuntu Pro (Infra-only)
o xserver-xorg-core - 2:1.18.4-0ubuntu0.12+esm4
Available with Ubuntu Pro (Infra-only)
o xserver-xorg-core-hwe-16.04 - 2:1.19.6-1ubuntu4.1~16.04.6+esm3
Available with Ubuntu Pro (Infra-only)
Ubuntu 14.04
o xserver-xorg-core - 2:1.15.1-0ubuntu2.11+esm6
Available with Ubuntu Pro (Infra-only)
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
o CVE-2022-3550
o CVE-2022-3551
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