Security Advisory Moderate: openstack-keystone security, bug fix, and enhancement update

Advisory: RHSA-2012:1557-1
Type: Security Advisory
Severity: Moderate
Issued on: 2012-12-10
Last updated on: 2012-12-10
Affected Products: Red Hat OpenStack Folsom
CVEs ( CVE-2012-5563


Updated openstack-keystone packages that fix two security issues, multiple
bugs, and add enhancements are now available for Red Hat OpenStack Folsom.

The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

The openstack-keystone packages provide Keystone, a Python implementation
of the OpenStack identity service API, which provides Identity, Token,
Catalog, and Policy services.

The openstack-keystone packages have been upgraded to upstream version
2012.2.1, which provides a number of bug fixes and enhancements over the
previous version. (BZ#883829)

This update also fixes the following security issues:

A flaw in Keystone allowed an attacker with access to the web and network
interfaces to continue using chained tokens linked to tokens that had
expired. This would allow the attacker to continue using the tokens despite
the parent token being expired, giving them continued access to OpenStack
services. (CVE-2012-5563)

It was found that Keystone did not correctly handle users being removed
from tenants when Amazon Elastic Compute Cloud (Amazon EC2) style
credentials (credentials that are issued in the same format as standard
Amazon EC2 credentials) were in use. When a user was removed from a tenant,
they retained the privileges provided by that tenant, allowing them to
access resources they should no longer have access to. (CVE-2012-5571)

Red Hat would like to thank the OpenStack project for reporting these
issues. Upstream acknowledges Anndy as the original reporter of
CVE-2012-5563, and Vijaya Erukala as the original reporter of

All users of openstack-keystone are advised to upgrade to these updated
packages, which correct these issues and add these enhancements. After
installing the updated packages, the Keystone service (openstack-keystone)
will be restarted automatically.


Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at

Updated packages

Red Hat OpenStack Folsom

File outdated by:  RHSA-2013:1083
    MD5: 612dd001fc73db3bc79442f4ec3e3fb2
SHA-256: 8bd7bbc69240024f792ce8ec580fd6ef44d8358e0e0a132b775f13c331228d79
File outdated by:  RHSA-2013:1083
    MD5: 36132be3b5bbc9d930bc8e6a48783fef
SHA-256: df3930e88565826f2a05b3d59f3e4691cef1658cf608c87e0e7184bba18746af
File outdated by:  RHSA-2013:1083
    MD5: b55fe36dfc360ac3a84fd5a0bb6c1c8d
SHA-256: c791c4a03a0833bdecbc2573932e55fe5ae8810aa3d91067cab391fce0ba5a61
File outdated by:  RHSA-2013:1083
    MD5: 5f1c8700fd4d9da43b59468415ec3698
SHA-256: 321ff08e7369b637393abdfbfde1c27e84e6afefc5786229af4e1de5c2ee4923
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

879402 - CVE-2012-5563 OpenStack: Keystone extension of token validity through token chaining
880399 - CVE-2012-5571 OpenStack: Keystone EC2-style credentials invalidation issue
883829 - Keystone - Update to the latest Folsom stable release 2012.2.1


These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:

The Red Hat security contact is More contact details at