Ubuntu alert USN-1564-1 (keystone)

From:
    	     
 
Steve Beattie <sbeattie@ubuntu.com> 
To:
    	     
 
ubuntu-security-announce@lists.ubuntu.com 
Subject:
    	     
 
[USN-1564-1] OpenStack Keystone vulnerability 
Date:
    	     
 
Wed, 12 Sep 2012 23:14:36 -0700
Message-ID:
    	     
 
<20120913061436.GA25260@nxnw.org>
Archive-link:
    	     
 
Article, Thread
              
==========================================================================
Ubuntu Security Notice USN-1564-1
September 13, 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continue to access resources that have been revoked.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

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

References:
  http://www.ubuntu.com/usn/usn-1564-1
  CVE-2012-4413

Package Information:
  https://launchpad.net/ubuntu/+source/keystone/2012.1+stab...

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