USN-1715-1: OpenStack Keystone vulnerability

5 February 2013

keystone vulnerability

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.

Software Description

  • 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.

Update instructions

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

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:

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