Ubuntu 5309-1: virglrenderer vulnerabilities | LinuxSecurity.com
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Ubuntu Security Notice USN-5309-1
February 28, 2022

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

- Ubuntu 21.10
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in virglrenderer.

Software Description:
- virglrenderer: virtual GPU for KVM virtualization

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)

Update instructions:

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

Ubuntu 21.10:
  libvirglrenderer1               0.8.2-5ubuntu0.21.10.1

Ubuntu 20.04 LTS:
  libvirglrenderer1               0.8.2-1ubuntu1.1

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

References:
  https://ubuntu.com/security/notices/USN-5309-1
  CVE-2022-0135, CVE-2022-0175

Package Information:
  https://launchpad.net/ubuntu/+source/virglrenderer/0.8.2-5ubuntu0.21.10.1
  https://launchpad.net/ubuntu/+source/virglrenderer/0.8.2-1ubuntu1.1

Ubuntu 5309-1: virglrenderer vulnerabilities

February 28, 2022

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.10 - Ubuntu 20.04 LTS Summary: Several security issues were fixed in virglrenderer. Software Description: - virglrenderer: virtual GPU for KVM virtualization 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)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10: libvirglrenderer1 0.8.2-5ubuntu0.21.10.1 Ubuntu 20.04 LTS: libvirglrenderer1 0.8.2-1ubuntu1.1 After a standard system update you need to restart all virtual machines to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5309-1

CVE-2022-0135, CVE-2022-0175

Severity
Ubuntu Security Notice USN-5309-1

Package Information

https://launchpad.net/ubuntu/+source/virglrenderer/0.8.2-5ubuntu0.21.10.1 https://launchpad.net/ubuntu/+source/virglrenderer/0.8.2-1ubuntu1.1

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