RHBA-2015:1234 - Bug Fix Advisory

Topic

Updated packages that provide several bug fixes are now available for Red Hat Enterprise MRG 2.5 for Red Hat Enterprise Linux 6.

Description

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.

A race condition was discovered on qpid::management::ManagementAgent::debugSnapshot when one thread executed periodic processing with traces enabled, while the second thread processed a QMF method from the client. The race condition caused a segfault. The fix improves thread iteration behavior, which fixes the originally reported issue. (BZ#1219554)

If a priority queue contained messages with differing priorities, rerouting the queue contents to a non-priority destination queue caused the messages to be ordered from lowest to highest, instead of highest to lowest. A fix to the MoveMessages::removeIf and PriorityQueue::removeIf changes the message traversal order to highest-to-lowest, which ensures that any rerouted messages with priority assigned are processed first in non-priority destination queues. (BZ#1223730)

All users of Red Hat Enterprise MRG 2.5 for Red Hat Enterprise Linux 6 are advised to upgrade to these updated packages, which correct these issues.

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/articles/11258

Affected Products

• Red Hat Enterprise MRG Messaging 2 for RHEL 6 x86_64
• Red Hat Enterprise MRG Messaging 2 for RHEL 6 i386
• MRG Grid Execute 2 x86_64

Fixes

• BZ - 1223730 - [MRG 2.*] Rerouting messages from priority queue reverses priority ordering

CVEs

(none)

References

• http://www.redhat.com/security/updates/classification/#normal