1. Ubuntu Security Notices
  2. USN-5309-1

USN-5309-1: virglrenderer vulnerabilities

Publication date

28 February 2022

Overview

Several security issues were fixed in virglrenderer.

Releases

Packages

Details

It was discovered that virglrenderer incorrectly handled memory. An
attacker inside a guest could use this issue to cause virglrenderer to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2022-0135)

It was discovered that virglrenderer incorrectly initialized memory. An
attacker inside a guest could possibly use this issue to obtain sensitive
host information. (CVE-2022-0175)

It was discovered that virglrenderer incorrectly handled memory. An
attacker inside a guest could use this issue to cause virglrenderer to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2022-0135)

It was discovered that virglrenderer incorrectly initialized memory. An
attacker inside a guest could possibly use this issue to obtain sensitive
host information. (CVE-2022-0175)

Update instructions

After a standard system update you need to restart all virtual machines to make all the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
21.10 impish libvirglrenderer1 –  0.8.2-5ubuntu0.21.10.1
20.04 focal libvirglrenderer1 –  0.8.2-1ubuntu1.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›