(RHSA-2012:1279) Moderate: Red Hat Enterprise MRG Messaging 2.2 update

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
enterprise customers.

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 discovered that the Apache Qpid daemon (qpidd) did not require
authentication for “catch-up” shadow connections created when a new broker
joins a cluster. A malicious client could use this flaw to bypass client
authentication. (CVE-2012-3467)

This update also fixes multiple 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 2.2 are
advised to upgrade to these updated packages, which resolve the issues and
add the enhancements noted in the Red Hat Enterprise MRG 2 Technical Notes.
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.