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Red Hat Product Errata RHSA-2013:0596 - Security Advisory
Issued:
2013-03-05
Updated:
2013-03-05

RHSA-2013:0596 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

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

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

Updated openstack-keystone packages that fix multiple security issues,
various 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.

Description

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
2012.2.3, which provides a number of bug fixes and enhancements over the
previous version. (BZ#908995)

This update also fixes the following security issues:

It was found that Keystone failed to properly validate disabled user
accounts, or user accounts associated with disabled tenants or domains,
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. Such users could use this flaw to access
resources they should no longer have access to. (CVE-2013-0282)

A denial of service flaw was found in the Extensible Markup Language (XML)
parser used by Keystone. If a malicious XML file were uploaded for
processing, it could possibly cause Keystone to consume an excessive amount
of CPU and memory. (CVE-2013-1664)

A flaw was found in the XML parser used by Keystone. If a malicious XML
file were uploaded for processing, it could cause Keystone to connect to
external entities, causing a large amount of system load, or allow an
attacker to read files on the Keystone server that are accessible to the
user running the Keystone service. (CVE-2013-1665)

Red Hat would like to thank the OpenStack project for reporting these
issues. Upstream acknowledges Nathanael Burton (National Security Agency)
as the original reporter of CVE-2013-0282.

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.

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

Affected Products

  • Red Hat OpenStack folsom x86_64

Fixes

  • BZ - 908995 - Keystone - Update to the latest Folsom stable release 2012.2.3
  • BZ - 910928 - CVE-2013-0282 OpenStack Keystone: EC2-style authentication accepts disabled user/tenants
  • BZ - 912982 - CVE-2013-1665 Python xml bindings: External entity expansion in Python XML libraries inflicts potential security flaws and DoS vulnerabilities
  • BZ - 913808 - CVE-2013-1664 Python xml bindings: Internal entity expansion in Python XML libraries inflicts DoS vulnerabilities

CVEs

  • CVE-2013-1664
  • CVE-2013-1665
  • CVE-2013-0282

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack folsom

SRPM
openstack-keystone-2012.2.3-3.el6ost.src.rpm SHA-256: 50fc6009978d206cfeaec7bf139361dfc9b5e7acc89020c8107031479a3d2231
x86_64
openstack-keystone-2012.2.3-3.el6ost.noarch.rpm SHA-256: 7a8f99e116bf4fc19dd00377e2fb770efec2c6f04078eecf7b2c8bc09f3cab20
openstack-keystone-doc-2012.2.3-3.el6ost.noarch.rpm SHA-256: c1dc906ffd8166b9381a574abfce368cce58082932e267b8d3b73af9eb68a03a
python-keystone-2012.2.3-3.el6ost.noarch.rpm SHA-256: ec7ea55ae4bab8df200548cc2449064ac7cfb69f511cb3e774898fb462fbcc12

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

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