USN-4371-1: libvirt vulnerabilities

USN-4371-1: libvirt vulnerabilities

libvirt vulnerabilities

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

• Ubuntu 19.10
• Ubuntu 18.04 LTS

Summary

Several security issues were fixed in libvirt.

Software Description

• 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

libvirt-clients – 5.4.0-0ubuntu5.4

libvirt-daemon – 5.4.0-0ubuntu5.4

libvirt0 – 5.4.0-0ubuntu5.4

Ubuntu 18.04 LTS

libvirt-clients – 4.0.0-1ubuntu8.17

libvirt-daemon – 4.0.0-1ubuntu8.17

libvirt0 – 4.0.0-1ubuntu8.17

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

• CVE-2020-10703
• CVE-2020-12430

Source: USN-4371-1: libvirt vulnerabilities