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Red Hat Security Advisory
Synopsis: Moderate: Red Hat Enterprise MRG Messaging 2.5 security, bug fix, and enhancement update
Advisory ID: RHSA-2014:0441-01
Product: Red Hat Enterprise MRG for RHEL-5
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0441.html
Issue date: 2014-04-28
CVE Names: CVE-2013-6445
Updated Messaging component packages that fix one security issue, several
bugs, and add various enhancements are now available for Red Hat Enterprise
MRG 2.5 for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
MRG Grid Execute Node for RHEL 5 Server v.2 – noarch
MRG Grid for RHEL 5 Server v.2 – noarch
MRG Management for RHEL 5 Server v.2 – noarch
Red Hat MRG Messaging for RHEL 5 Server v.2 – noarch
Red Hat Enterprise MRG (Messaging, Realtime, and Grid) is a next-generation
IT infrastructure for enterprise computing. MRG offers increased
performance, reliability, interoperability, and faster computing for
MRG Messaging is a high-speed reliable messaging distribution for Linux
based on AMQP (Advanced Message Queuing Protocol), an open protocol
standard for enterprise messaging that is designed to make mission critical
messaging widely available as a standard service, and to make enterprise
messaging interoperable across platforms, programming languages, and
vendors. MRG Messaging includes an AMQP 0-10 messaging broker; AMQP 0-10
client libraries for C++, Java JMS, and Python; as well as persistence
libraries and management tools.
It was found that MRG Management Console (cumin) used the crypt(3)
DES-based hash function to hash passwords. DES-based hashing has known
weaknesses that allow an attacker to more easily recover plain text
passwords from hashes via brute-force guessing. An attacker able to
compromise a cumin user database could potentially use this flaw to recover
plain text passwords from the password hashes stored in that database.
Note: In deployments where user account information is stored in a database
managed by cumin, it is recommended that users change their passwords after
this update is applied.
This issue was discovered by Tomáš Nováčik of the Red Hat MRG Quality
This update also fixes several bugs and adds enhancements.
Documentation for these changes will be available shortly from the
Technical Notes document linked to in the References section.
All users of the Messaging capabilities of Red Hat Enterprise MRG are
advised to upgrade to these updated packages, which resolve these issues
and add these enhancements. After installing the updated packages, stop the
cluster by either running “service qpidd stop” on all nodes, or
“qpid-cluster –all-stop” on any one of the cluster nodes. Once stopped,
restart the cluster with “service qpidd start” on all nodes for the update
to take effect.
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 (https://bugzilla.redhat.com/):
1044315 – CVE-2013-6445 cumin: weak password hashing
6. Package List:
MRG Grid for RHEL 5 Server v.2:
MRG Grid Execute Node for RHEL 5 Server v.2:
MRG Management for RHEL 5 Server v.2:
Red Hat MRG Messaging for RHEL 5 Server v.2:
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 <email@example.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2014 Red Hat, Inc.
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