USN-1438-1: Nova vulnerability

3 May 2012

nova vulnerability

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10

Summary

Nova could be made to crash the system under certain conditions.

Software Description

  • nova - OpenStack Compute cloud infrastructure

Details

Dan Prince discovered that Nova did not enforce quotas for security groups and rules added to security groups. An authenticated user could exploit this to cause a denial of service.

Update instructions

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

Ubuntu 12.04 LTS
python-nova - 2012.1-0ubuntu2.1
Ubuntu 11.10
python-nova - 2011.3-0ubuntu6.6

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References