Ubuntu alert USN-5778-1 (xorg-server, xorg-server-hwe-18.04, xwayland)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com>
To:
             
 
"ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com>
Subject:
             
 
[USN-5778-1] X.Org X Server vulnerabilities
Date:
             
 
Wed, 14 Dec 2022 08:37:32 -0500
Message-ID:
             
 
<f398e85e-6019-3b87-e462-59eaca95f43b@canonical.com>
==========================================================================
Ubuntu Security Notice USN-5778-1
December 14, 2022

xorg-server, xorg-server-hwe-18.04, xwayland vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in X.Org X Server.

Software Description:
- xorg-server: X.Org X11 server
- xwayland: X server for running X clients under Wayland
- xorg-server-hwe-18.04: X.Org X11 server

Details:

Jan-Niklas Sohn discovered that X.Org X Server extensions contained
multiple security issues. An attacker could possibly use these issues to
cause the X Server to crash, execute arbitrary code, or escalate
privileges.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
   xserver-xorg-core               2:21.1.4-2ubuntu1.3
   xwayland                        2:22.1.3-2ubuntu0.2

Ubuntu 22.04 LTS:
   xserver-xorg-core               2:21.1.3-2ubuntu2.5
   xwayland                        2:22.1.1-1ubuntu0.4

Ubuntu 20.04 LTS:
   xserver-xorg-core               2:1.20.13-1ubuntu1~20.04.5
   xwayland                        2:1.20.13-1ubuntu1~20.04.5

Ubuntu 18.04 LTS:
   xserver-xorg-core               2:1.19.6-1ubuntu4.13
   xserver-xorg-core-hwe-18.04     2:1.20.8-2ubuntu2.2~18.04.9
   xwayland                        2:1.19.6-1ubuntu4.13
   xwayland-hwe-18.04              2:1.20.8-2ubuntu2.2~18.04.9

After a standard system update you need to reboot your computer to make all
the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-5778-1
   CVE-2022-4283, CVE-2022-46340, CVE-2022-46341, CVE-2022-46342,
   CVE-2022-46343, CVE-2022-46344

Package Information:
   https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.4...
   https://launchpad.net/ubuntu/+source/xwayland/2:22.1.3-2u...
   https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.3...
   https://launchpad.net/ubuntu/+source/xwayland/2:22.1.1-1u...
   https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.1...
   https://launchpad.net/ubuntu/+source/xorg-server/2:1.19.6...
 
https://launchpad.net/ubuntu/+source/xorg-server-hwe-18.0...