[USN-5510-2] X.Org X Server vulnerabilities
Leonidas S. Barbosa
leo.barbosa at canonical.com
Tue Jul 12 20:57:08 UTC 2022
==========================================================================
Ubuntu Security Notice USN-5510-2
July 12, 2022
xorg-server, xorg-server-hwe-16.04 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
Summary:
Several security issues were fixed in X.Org X Server.
Software Description:
- xorg-server: X.Org X11 server
- xorg-server-hwe-16.04: X.Org X11 server
Details:
USN-5510-1 fixed several vulnerabilities in X.Org. This update provides
the corresponding update for Ubuntu 16.04 ESM.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled
certain inputs. An attacker could use this issue to cause the server to
crash, resulting in a denial of service, or possibly execute arbitrary
code and escalate privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 ESM:
xserver-xorg-core 2:1.18.4-0ubuntu0.12+esm2
xserver-xorg-core-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6+esm1
xwayland 2:1.18.4-0ubuntu0.12+esm2
xwayland-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6+esm1
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5510-2
https://ubuntu.com/security/notices/USN-5510-1
CVE-2022-2319, CVE-2022-2320
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