Ubuntu Security Notice USN-1715-1
5th February, 2013
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.10
- Ubuntu 12.04 LTS
Keystone could be made to fill server disks with error messages.
- keystone - OpenStack identity service
Dan Prince discovered that Keystone did not properly perform input
validation when handling certain error conditions. An unauthenticated user
could exploit this to cause a denial of service in Keystone API servers via
disk space exhaustion.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 12.10:
- python-keystone 2012.2.1-0ubuntu1.1
- Ubuntu 12.04 LTS:
- python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.4
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.