A Nova security update has been released for Ubuntu Linux 20.04 LTS, 22.04 LTS, and 22.10.

USN-5835-3: Nova vulnerability

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Ubuntu Security Notice USN-5835-3
January 31, 2023

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

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Nova could be made to expose sensitive information.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

Guillaume Espanel, Pierre Libeau, Arnaud Morin, and Damien Rannou
discovered that Nova incorrectly handled VMDK image processing. An
authenticated attacker could possibly supply a specially crafted VMDK flat
image and obtain arbitrary files from the server containing sensitive
information.

Update instructions:

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

Ubuntu 22.10:
nova-common 3:26.1.0-0ubuntu1
python3-nova 3:26.1.0-0ubuntu1

Ubuntu 22.04 LTS:
nova-common 3:25.1.0-0ubuntu1
python3-nova 3:25.1.0-0ubuntu1

Ubuntu 20.04 LTS:
nova-common 2:21.2.4-0ubuntu2.1
python3-nova 2:21.2.4-0ubuntu2.1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5835-3
https://ubuntu.com/security/notices/USN-5835-1
CVE-2022-47951

Package Information:
https://launchpad.net/ubuntu/+source/nova/3:26.1.0-0ubuntu1
https://launchpad.net/ubuntu/+source/nova/3:25.1.0-0ubuntu1
https://launchpad.net/ubuntu/+source/nova/2:21.2.4-0ubuntu2.1