USN-4371-1: libvirt vulnerabilities

21 May 2020

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)

Update instructions

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

Ubuntu 19.10
Ubuntu 18.04

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