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

Advisory: RHSA-2013:0708-1
Type: Security Advisory
Severity: Moderate
Issued on: 2013-04-04
Last updated on: 2013-04-04
Affected Products: Red Hat OpenStack Folsom
CVEs (cve.mitre.org): CVE-2013-0270
CVE-2013-1865

Details

Updated openstack-keystone packages that fix two security issues and
various bugs 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.

It was found that Keystone did not correctly handle revoked PKI tokens,
allowing users with revoked tokens to retain access to resources they
should no longer be able to access. (CVE-2013-1865)

A flaw was found in the way Keystone handled tenant names in token
requests. A request containing an excessively long tenant name could cause
Keystone to consume a large amount of CPU and memory. With this update,
the maximum HTTP request size is limited to 112k. This can be changed via
the "max_request_body_size" option in "/etc/keystone/keystone.conf".
(CVE-2013-0270)

Red Hat would like to thank the OpenStack project for reporting the
CVE-2013-1865 issue. Upstream acknowledges Guang Yee (HP) as the original
reporter of CVE-2013-1865. The CVE-2013-0270 issue was discovered by Dan
Prince of Red Hat.

This update also fixes various bugs in the openstack-keystone packages.

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


Solution

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
https://access.redhat.com/knowledge/articles/11258

Updated packages

Red Hat OpenStack Folsom

SRPMS:
openstack-keystone-2012.2.3-7.el6ost.src.rpm
File outdated by:  RHSA-2013:1083
    MD5: d265a29bd889c672b1585b93d5780e3c
SHA-256: 618bb8198f9f1c6fe7d2ea98e7ddd5548fd3dd0c56c3617bbfa4fc1b714db9d5
 
x86_64:
openstack-keystone-2012.2.3-7.el6ost.noarch.rpm
File outdated by:  RHSA-2013:1083
    MD5: 5c4988fa196a340ccbacf31436f015fc
SHA-256: 601f6f85f55f346a20ecd43481ef2acaa7a2d1b072a3d3306dc479c15e316720
openstack-keystone-doc-2012.2.3-7.el6ost.noarch.rpm
File outdated by:  RHSA-2013:1083
    MD5: ed372933ccec7c7e02125e5743383034
SHA-256: 44a548b3f85573e0045c5ea5e9299c4f137a9e376fb9f8eab1b05874937d074b
python-keystone-2012.2.3-7.el6ost.noarch.rpm
File outdated by:  RHSA-2013:1083
    MD5: b7fc8b7c8eb140476369326bcb436cf9
SHA-256: 833d926f0af4774c8bc2d073fd15a8aa082aab49ec7d4212d15e42e810f786f4
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

887815 - a comprehensive keystone.conf file should be included in the RPMS(s)
888575 - Keystone's v2.0 API (the only API) is reported as in beta status
909012 - CVE-2013-0270 OpenStack Keystone: Large HTTP request DoS
917208 - PKI tokens are broken after 24 hours
918159 - PKI tokens too long for memcached keys
922230 - CVE-2013-1865 OpenStack keystone: online validation of Keystone PKI tokens bypasses revocation check


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/