USN-1497-1: Nova vulnerabilities

3 July 2012

nova vulnerabilities

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

  • Ubuntu 12.04 LTS
  • Ubuntu 11.10

Summary

Nova could be made to overwrite or corrupt arbitrary files in the compute host file system.

Software Description

  • nova - OpenStack Compute cloud infrastructure

Details

Matthias Weckbecker discovered that, when using the OpenStack API to setup libvirt-based hypervisors, an authenticated user could inject files in arbitrary locations on the file system of the host running Nova. A remote attacker could use this to gain root privileges. This issue only affects Ubuntu 12.04 LTS. (CVE-2012-3360)

Pádraig Brady discovered that an authenticated user could corrupt arbitrary files of the host running Nova. A remote attacker could use this to cause a denial of service or possibly gain privileges. (CVE-2012-3361)

Update instructions

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

Ubuntu 12.04 LTS
python-nova - 2012.1+stable~20120612-3ee026e-0ubuntu1.1
Ubuntu 11.10
python-nova - 2011.3-0ubuntu6.9

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