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Ubuntu Security Notice USN-6734-1
April 15, 2024
libvirt vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in libvirt.
Software Description:
- libvirt: Libvirt virtualization toolkit
Details:
Alexander Kuznetsov discovered that libvirt incorrectly handled certain API
calls. An attacker could possibly use this issue to cause libvirt to crash,
resulting in a denial of service. (CVE-2024-1441)
It was discovered that libvirt incorrectly handled certain RPC library API
calls. An attacker could possibly use this issue to cause libvirt to crash,
resulting in a denial of service. (CVE-2024-2494)
It was discovered that libvirt incorrectly handled detaching certain host
interfaces. An attacker could possibly use this issue to cause libvirt to
crash, resulting in a denial of service. (CVE-2024-2496)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.10:
   libvirt-daemon                  9.6.0-1ubuntu1.1
   libvirt-daemon-system           9.6.0-1ubuntu1.1
   libvirt0                        9.6.0-1ubuntu1.1
Ubuntu 22.04 LTS:
   libvirt-daemon                  8.0.0-1ubuntu7.10
   libvirt-daemon-system           8.0.0-1ubuntu7.10
   libvirt0                        8.0.0-1ubuntu7.10
Ubuntu 20.04 LTS:
   libvirt-daemon                  6.0.0-0ubuntu8.19
   libvirt-daemon-system           6.0.0-0ubuntu8.19
   libvirt0                        6.0.0-0ubuntu8.19
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6734-1
   CVE-2024-1441, CVE-2024-2494, CVE-2024-2496
Package Information:
   https://launchpad.net/ubuntu/+source/libvirt/9.6.0-1ubuntu1.1
   https://launchpad.net/ubuntu/+source/libvirt/8.0.0-1ubuntu7.10
   https://launchpad.net/ubuntu/+source/libvirt/6.0.0-0ubuntu8.19