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                   Red Hat Security Advisory

Synopsis:          Critical: Red Hat JBoss Enterprise Application Platform 5.2 security update
Advisory ID:       RHSA-2016:1328-01
Product:           Red Hat JBoss Enterprise Application Platform
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:1328
Issue date:        2016-06-23
CVE Names:         CVE-2016-2141 
=====================================================================

1. Summary:

A security update is now available for Red Hat JBoss Enterprise Application
Platform 5.2.0 from the Customer Portal.

Red Hat Product Security has rated this update as having a security impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat JBoss Enterprise Application Platform 5 for RHEL 4 AS - noarch
Red Hat JBoss Enterprise Application Platform 5 for RHEL 4 ES - noarch
Red Hat JBoss Enterprise Application Platform 5 for RHEL 5 Server - noarch
Red Hat JBoss Enterprise Application Platform 5 for RHEL 6 Server - noarch

3. Description:

Red Hat JBoss Enterprise Application Platform is a platform for Java
applications, which integrates the JBoss Application Server with JBoss
Hibernate and JBoss Seam.

This asynchronous patch is a security update for JGroups package in Red Hat
JBoss Enterprise Application Platform 5.2. More information about this
vulnerability is available at: https://access.redhat.com/articles/2360521

Security Fix(es):

* It was found that JGroups did not require necessary headers for encrypt
and auth protocols from new nodes joining the cluster. An attacker could
use this flaw to bypass security restrictions, and use this vulnerability
to send and receive messages within the cluster, leading to information
disclosure, message spoofing, or further possible attacks. (CVE-2016-2141)

The CVE-2016-2141 issue was discovered by Dennis Reed (Red Hat).

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied. Also, back up your existing Red
Hat JBoss Enterprise Application Platform 5 installation (including all
applications and configuration files).

The JBoss server process must be restarted for the update to take effect.

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

5. Bugs fixed (https://bugzilla.redhat.com/):

1313589 - CVE-2016-2141 Authorization bypass in JGroups

6. Package List:

Red Hat JBoss Enterprise Application Platform 5 for RHEL 4 AS:

Source:
jgroups-2.6.22-2.ep5.el4.src.rpm

noarch:
jgroups-2.6.22-2.ep5.el4.noarch.rpm

Red Hat JBoss Enterprise Application Platform 5 for RHEL 4 ES:

Source:
jgroups-2.6.22-2.ep5.el4.src.rpm

noarch:
jgroups-2.6.22-2.ep5.el4.noarch.rpm

Red Hat JBoss Enterprise Application Platform 5 for RHEL 5 Server:

Source:
jgroups-2.6.22-2.ep5.el5.src.rpm

noarch:
jgroups-2.6.22-2.ep5.el5.noarch.rpm

Red Hat JBoss Enterprise Application Platform 5 for RHEL 6 Server:

Source:
jgroups-2.6.22-2.ep5.el6.src.rpm

noarch:
jgroups-2.6.22-2.ep5.el6.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2016-2141
https://access.redhat.com/security/updates/classification/#critical
https://access.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/?version=5
https://access.redhat.com/articles/2360521

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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