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Ubuntu Security Notice USN-5740-1

Ubuntu Security Notice USN-5740-1
Posted Nov 24, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5740-1 - 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.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2022-3550
SHA-256 | b5857b479bebbc5b894d821a73461bef7882ec20e455fb88ee54d65008fad68b

Ubuntu Security Notice USN-5740-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5740-1
November 23, 2022

xorg-server, xorg-server-hwe-16.04, 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
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM

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
- xorg-server-hwe-16.04: X.Org X11 server

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:
xserver-xorg-core 2:21.1.4-2ubuntu1.1
xwayland 2:22.1.3-2ubuntu0.1

Ubuntu 22.04 LTS:
xserver-xorg-core 2:21.1.3-2ubuntu2.3
xwayland 2:22.1.1-1ubuntu0.3

Ubuntu 20.04 LTS:
xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.4
xwayland 2:1.20.13-1ubuntu1~20.04.4

Ubuntu 18.04 LTS:
xserver-xorg-core 2:1.19.6-1ubuntu4.12
xserver-xorg-core-hwe-18.04 2:1.20.8-2ubuntu2.2~18.04.8
xwayland 2:1.19.6-1ubuntu4.12

Ubuntu 16.04 ESM:
xserver-xorg-core 2:1.18.4-0ubuntu0.12+esm4
xserver-xorg-core-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6+esm3
xwayland 2:1.18.4-0ubuntu0.12+esm4

Ubuntu 14.04 ESM:
xserver-xorg-core 2:1.15.1-0ubuntu2.11+esm6

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

References:
https://ubuntu.com/security/notices/USN-5740-1
CVE-2022-3550, CVE-2022-3551

Package Information:
https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.4-2ubuntu1.1
https://launchpad.net/ubuntu/+source/xwayland/2:22.1.3-2ubuntu0.1
https://launchpad.net/ubuntu/+source/xorg-server/2:21.1.3-2ubuntu2.3
https://launchpad.net/ubuntu/+source/xwayland/2:22.1.1-1ubuntu0.3
https://launchpad.net/ubuntu/+source/xorg-server/2:1.20.13-1ubuntu1~20.04.4
https://launchpad.net/ubuntu/+source/xorg-server/2:1.19.6-1ubuntu4.12

https://launchpad.net/ubuntu/+source/xorg-server-hwe-18.04/2:1.20.8-2ubuntu2.2~18.04.8
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