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USN-4047-1: libvirt vulnerabilities

8 July 2019

Several security issues were fixed in libvirt.



  • libvirt - Libvirt virtualization toolkit


Matthias Gerstner and Ján Tomko discovered that libvirt incorrectly handled
certain API calls. An attacker could possibly use this issue to check for
arbitrary files, or execute arbitrary binaries. In the default
installation, attackers would be isolated by the libvirt AppArmor profile.

Update instructions

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

Ubuntu 19.04
Ubuntu 18.10
Ubuntu 18.04
Ubuntu 16.04

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

Related notices

  • USN-4047-2: libvirt0, libvirt, libvirt-dev, libvirt-doc, libvirt-bin