USN-1564-1: OpenStack Keystone vulnerability

13 September 2012

keystone vulnerability

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

  • Ubuntu 12.04 LTS

Summary

OpenStack Keystone did not properly handle user role changes

Software Description

  • keystone - OpenStack identity service

Details

Dolph Mathews discovered that when roles are granted and revoked to users in Keystone, pre-existing tokens were not updated or invalidated to take the new roles into account. An attacker could use this to continue to access resources that have been revoked.

Update instructions

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

Ubuntu 12.04 LTS
keystone - 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2
python-keystone - 2012.1+stable~20120824-a16a0ab9-0ubuntu2.2

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