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Ubuntu 20.04 USN-6001-1 Low: X.Org X Server Memory Leak Vulnerability

ubuntu
Calendar Grey July 27, 2023
Dist Ubuntu Esm H88
Multiple vulnerabilities addressed in X.Org X Server for Ubuntu 16.04, including update guidance and necessary reboot steps.
Several security issues were fixed in X.Org X Server.

Summary

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

Software Description:

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

Details:

USN-5193-1 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.

Topics%20covered

Topics Covered

security advisory denial of service security issue software patch Ubuntu server update X.Org

Update Instructions

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

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  xserver-xorg-core-hwe-16.04     2:1.19.6-1ubuntu4.1~16.04.6+esm5

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

References

https://ubuntu.com/security/notices/USN-5193-3

https://ubuntu.com/security/notices/USN-5193-1

CVE-2021-4008, CVE-2021-4009, CVE-2021-4011

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-5193-3

Topics%20covered

Topics Covered

security advisory denial of service security issue software patch Ubuntu server update X.Org

Package Information

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