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USN-6126-1: libvirt vulnerabilities

31 May 2023

Several security issues were fixed in libvirt.

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Releases

Packages

  • libvirt - Libvirt virtualization toolkit

Details

It was discovered that libvirt incorrectly handled the nwfilter driver. A
local attacker could possibly use this issue to cause libvirt to crash,
resulting in a denial of service. This issue only affected Ubuntu 22.04
LTS. (CVE-2022-0897)

It was discovered that libvirt incorrectly handled queries for the SR-IOV
PCI device capabilities. A local attacker could possibly use this issue to
cause libvirt to consume resources, leading to a denial of service.
(CVE-2023-2700)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.04
Ubuntu 22.10
Ubuntu 22.04

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

Related notices

  • USN-5399-1: libvirt, libvirt-dev, libvirt-daemon-system, libvirt-daemon-driver-lxc, libvirt-doc, libvirt-daemon-driver-storage-sheepdog, libvirt-daemon-system-sysv, libvirt-clients, libvirt-daemon-driver-qemu, libvirt-sanlock, libvirt-daemon-driver-vbox, libnss-libvirt, libvirt-login-shell, libvirt-daemon-driver-storage-gluster, libvirt-daemon-driver-xen, libvirt-wireshark, libvirt-daemon-driver-storage-rbd, libvirt-daemon-driver-storage-zfs, libvirt-bin, libvirt-daemon, libvirt0, libvirt-daemon-config-nwfilter, libvirt-daemon-driver-storage-iscsi-direct, libvirt-daemon-system-systemd, libvirt-daemon-config-network