USN-1552-1: OpenStack Keystone vulnerabilities

Ubuntu Security Notice USN-1552-1

3rd September, 2012

keystone vulnerabilities

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

  • Ubuntu 12.04 LTS


Two security issues were fixed in OpenStack Keystone.

Software description

  • keystone - OpenStack identity service


Dolph Mathews discovered that OpenStack Keystone did not properly
restrict to administrative users the ability to update users'
tenants. A remote attacker that can reach the administrative API can
use this to add any user to any tenant. (CVE-2012-3542)

Derek Higgins discovered that OpenStack Keystone did not properly
implement token expiration. A remote attacker could use this to
continue to access an account that has been disabled or has a changed
password. (CVE-2012-3426)

Update instructions

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

Ubuntu 12.04 LTS:
keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.1
python-keystone 2012.1+stable~20120824-a16a0ab9-0ubuntu2.1

To update your system, please follow these instructions:

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


CVE-2012-3426, CVE-2012-3542