Share your story
The central voice for Linux and Open Source security news
Home News Topics Advisories HOWTOs Features Newsletters About Register

Sign up!
EnGarde Community
What is the most important Linux security technology?
Linux Events
Linux User Groups
Link to Us
Security Center
Book Reviews
Security Dictionary
Security Tips
White Papers
Featured Blogs
All About Linux
DanWalsh LiveJournal
Latest Newsletters
Linux Security Week: March 30th, 2015
Linux Advisory Watch: March 27th, 2015
LinuxSecurity Newsletters
Choose Lists:
About our Newsletters
RSS Feeds
Get the LinuxSecurity news you want faster with RSS
Powered By

Red Hat: 2012:1378-01: openstack-keystone: Important Advisory Print E-mail
User Rating:      How can I rate this item?
Posted by Benjamin D. Thomas   
RedHat Linux 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 [More...]
                   Red Hat Security Advisory

Synopsis:          Important: openstack-keystone security update
Advisory ID:       RHSA-2012:1378-01
Product:           Red Hat OpenStack
Advisory URL:
Issue date:        2012-10-16
CVE Names:         CVE-2012-3542 CVE-2012-4413 CVE-2012-4456 

1. Summary:

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.

2. Relevant releases/architectures:

RHOS Essex Release - noarch

3. Description:

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.

4. 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

5. Bugs fixed (

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

6. Package List:

RHOS Essex Release:



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

7. References:

8. Contact:

The Red Hat security contact is .  More contact
details at

Copyright 2012 Red Hat, Inc.
< Prev   Next >


Latest Features
Peter Smith Releases Linux Network Security Online
Securing a Linux Web Server
Password guessing with Medusa 2.0
Password guessing as an attack vector
Squid and Digest Authentication
Squid and Basic Authentication
Demystifying the Chinese Hacking Industry: Earning 6 Million a Night
Free Online security course (LearnSIA) - A Call for Help
What You Need to Know About Linux Rootkits
Review: A Practical Guide to Fedora and Red Hat Enterprise Linux - Fifth Edition
Yesterday's Edition
Feds Charged With Stealing Money During Silk Road Investigation
EFF questions US government's software flaw disclosure policy
Hotel Router Vulnerability A Reminder Of Untrusted WiFi Risks
Partner Sponsor

Community | HOWTOs | Blogs | Features | Book Reviews | Networking
 Security Projects |  Latest News |  Newsletters |  SELinux |  Privacy |  Home
 Hardening |   About Us |   Advertise |   Legal Notice |   RSS |   Guardian Digital
(c)Copyright 2015 Guardian Digital, Inc. All rights reserved.