Security Advisory Important: openstack-keystone security update

Advisory: RHSA-2012:1378-1
Type: Security Advisory
Severity: Important
Issued on: 2012-10-16
Last updated on: 2012-10-16
Affected Products: Red Hat OpenStack Essex
CVEs ( CVE-2012-3542


Updated openstack-keystone packages that fix multiple security issues are
now available for Red Hat OpenStack Essex.

The Red Hat Security Response Team has rated this update as having
important 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.

Keystone is a Python implementation of the OpenStack
( identity service API.

It was found that Keystone incorrectly handled authorization failures. If
a client attempted to change their tenant membership to one they are not
authorized to join, Keystone correctly returned a not authorized error;
however, the client was still added to the tenant. Users able to access the
Keystone administrative API could use this flaw to add any user to any
tenant. (CVE-2012-3542)

When logging into Keystone, the user receives a token to use for
authentication with other services managed by Keystone. It was found that
Keystone failed to revoke tokens if privileges were revoked, allowing users
to retain access to resources they should no longer be able to access while
their token remains valid. (CVE-2012-4413)

It was found that the Keystone administrative API was missing
authentication for certain actions. Users able to access the Keystone
administrative API could use this flaw to add, start, and stop services, as
well as list the roles for any user. (CVE-2012-4456)

It was found that Keystone incorrectly handled disabled tenants. A user
belonging to a disabled tenant could use this flaw to continue accessing
resources as if the tenant were not disabled. (CVE-2012-4457)

Red Hat would like to thank Dolph Mathews for reporting CVE-2012-3542 and

All users of openstack-keystone are advised to upgrade to these updated
packages, which upgrade openstack-keystone to upstream version 2012.1.2
and correct these issues. 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 Essex

File outdated by:  RHSA-2012:1556
    MD5: 04c99a2ddd72d93d4776c5815232644a
SHA-256: 56b571c1a63ee6ae35650459186f0ec6fe8d6d55ff6c30a70453984c7fd57767
File outdated by:  RHSA-2012:1556
    MD5: f85b0ac9cfc72fde56932a5790f16cbe
SHA-256: 4b2ae00423e23d2ae8c36375ac06b30979bb5526da13ab4788260b3ab331bed1
File outdated by:  RHSA-2012:1556
    MD5: 755fccf2edafacd967b6f872c23443c7
SHA-256: df800dc47e8aa052d5c0bae92f3bd6cd96495e528f393cd0c2c8033792d92f5d
File outdated by:  RHSA-2012:1556
    MD5: 3b85c2d640d1c40ced1b3d60c9b48d56
SHA-256: 49beab194f0c7c7a63d63d1471c5d1cb171c120780e7482f8d0cd496c9ea9b78
File outdated by:  RHSA-2012:1556
    MD5: 2fc70a89d54be889cd0e880fe64912c2
SHA-256: 327931fdc2f61069efb064cbb2a2b53a10e72a367b9af905a237fcc82b839919
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

852510 - CVE-2012-3542 OpenStack Keystone: Lack of authorization for adding users to tenants
855491 - CVE-2012-4413 OpenStack-Keystone: role revocation token issues
861179 - CVE-2012-4456 Openstack Keystone 2012.1.1: fails to validate tokens in Admin API
861180 - CVE-2012-4457 OpenStack Keystone 2012.1.1: fails to raise Unauthorized user error for disabled tenant


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