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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: JBoss Enterprise BRMS Platform 5.1.0 security update
Advisory ID:       RHSA-2011:1313-01
Product:           JBoss Enterprise Middleware
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1313.html
Issue date:        2011-09-15
CVE Names:         CVE-2011-1483 
=====================================================================

1. Summary:

An updated JBoss Web Services Native component for JBoss Enterprise BRMS
Platform 5.1.0 that fixes one security issue is now available from the Red
Hat Customer Portal.

The Red Hat Security Response Team has rated this update as having
important 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. Description:

JBoss Web Services Native is a web service framework included as part of
JBoss Enterprise BRMS Platform. It implements the JAX-WS specification.

It was found that JBoss Web Services Native did not properly protect
against recursive entity resolution when processing Document Type
Definitions (DTD). A remote attacker could exploit this flaw by sending a
specially-crafted HTTP POST request to a deployed web service, causing
excessive CPU and memory consumption on the system hosting that service. If
the attack is repeated to consume all available network sockets, the server
will become unavailable. (CVE-2011-1483)

All users of JBoss Enterprise BRMS Platform 5.1.0 as provided from the Red
Hat Customer Portal are advised to install this update.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying the update, backup your
existing JBoss Enterprise BRMS Platform installation (including its
databases, applications, configuration files, and so on).

Note that it is recommended to halt the JBoss Enterprise BRMS Platform
server by stopping the JBoss Application Server process before installing
this update, and then after installing the update, restart the JBoss
Enterprise BRMS Platform server by starting the JBoss Application Server
process.

4. Bugs fixed (http://bugzilla.redhat.com/):

692584 - CVE-2011-1483 JBossWS remote Denial of Service

5. References:

https://www.redhat.com/security/data/cve/CVE-2011-1483.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=brms&downloadType=securityPatches&version=5.1.0

6. Contact:

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

Copyright 2011 Red Hat, Inc.
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