Ubuntu Security Notice USN-1734-1
21st February, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
Nova could be made to crash if it received specially crafted input.
- nova - OpenStack Compute cloud infrastructure
Joshua Harlow discovered that Nova would allow XML entity processing. A
remote unauthenticated attacker could exploit this using the Nova API to
cause a denial of service via resource exhaustion. (CVE-2013-1664)
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- python-nova 2012.2.1+stable-20121212-a99a802e-0ubuntu1.2
- Ubuntu 12.04 LTS:
- python-nova 2012.1.3+stable-20120827-4d2a4afe-0ubuntu1.2
- Ubuntu 11.10:
- python-nova 2011.3-0ubuntu6.12
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.