USN-6073-5: Nova regression

Releases

• Ubuntu 20.04 LTS

Packages

• nova - OpenStack Compute cloud infrastructure

Details

USN-6073-3 fixed a vulnerability in Nova. The update introduced a
regression causing Nova to be unable to detach volumes from instances. This
update fixes the problem.

We apologize for the inconvenience.

Original advisory details:

Jan Wasilewski and Gorka Eguileor discovered that Nova incorrectly
handled deleted volume attachments. An authenticated user or attacker could
possibly use this issue to gain access to sensitive information.

This update may require configuration changes to be completely effective,
please see the upstream advisory for more information:

https://security.openstack.org/ossa/OSSA-2023-003.html

Update instructions

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

Ubuntu 20.04

• python3-nova - 2:21.2.4-0ubuntu2.4

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

References

• https://launchpad.net/bugs/2019460