=========================================================================Ubuntu Security Notice USN-5835-5
February 09, 2023

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

- Ubuntu 18.04 LTS

Summary:

Nova could be made to expose sensitive information.

Software Description:
- nova: OpenStack Compute cloud infrastructure

Details:

USN-5835-3 fixed vulnerabilities in Nova. This update provides the
corresponding updates for Ubuntu 18.04 LTS.

Original advisory 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 18.04 LTS:
   nova-common                     2:17.0.13-0ubuntu5.2
   python-nova                     2:17.0.13-0ubuntu5.2

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

References:
   https://ubuntu.com/security/notices/USN-5835-5
   https://ubuntu.com/security/notices/USN-5835-1
   CVE-2022-47951

Package Information:
   https://launchpad.net/ubuntu/+source/nova/2:17.0.13-0ubuntu5.2