1. Ubuntu Security Notices
  2. USN-4371-1

USN-4371-1: libvirt vulnerabilities

Publication date

21 May 2020

Overview

Several security issues were fixed in libvirt.

Releases

Packages

  • libvirt - Libvirt virtualization toolkit

Details

It was discovered that libvirt incorrectly handled an active pool without a
target path. A remote attacker could possibly use this issue to cause
libvirt to crash, resulting in a denial of service. (CVE-2020-10703)

It was discovered that libvirt incorrectly handled memory when retrieving
certain domain statistics. A remote attacker could possibly use this issue
to cause libvirt to consume resources, resulting in a denial of service.
This issue only affected Ubuntu 19.10. (CVE-2020-12430)

It was discovered that libvirt incorrectly handled an active pool without a
target path. A remote attacker could possibly use this issue to cause
libvirt to crash, resulting in a denial of service. (CVE-2020-10703)

It was discovered that libvirt incorrectly handled memory when retrieving
certain domain statistics. A remote attacker could possibly use this issue
to cause libvirt to consume resources, resulting in a denial of service.
This issue only affected Ubuntu 19.10. (CVE-2020-12430)

Update instructions

After a standard system update you need to reboot your computer 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
19.10 eoan libvirt-clients –  5.4.0-0ubuntu5.4
libvirt-daemon –  5.4.0-0ubuntu5.4
libvirt0 –  5.4.0-0ubuntu5.4
18.04 bionic libvirt-clients –  4.0.0-1ubuntu8.17
libvirt-daemon –  4.0.0-1ubuntu8.17
libvirt0 –  4.0.0-1ubuntu8.17

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References

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