=====================================================================
                                   CERT-Renater

                        Note d'Information No. 2010/VULN271
_____________________________________________________________________

DATE                      : 28/07/2010

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : RHEL version 4, 5 running JBoss Enterprise Application Platform.

======================================================================
https://rhn.redhat.com/errata/RHSA-2010-0564.html
______________________________________________________________________

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

Synopsis:          Important: jboss-seam2 security update
Advisory ID:       RHSA-2010:0564-01
Product:           JBoss Enterprise Application Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0564.html
Issue date:        2010-07-27
CVE Names:         CVE-2010-1871
=====================================================================

1. Summary:

Updated jboss-seam2 packages that fix one security issue are now available
for JBoss Enterprise Application Platform 4.3 for Red Hat Enterprise Linux
4 and 5.

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. Relevant releases/architectures:

JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES - noarch
JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server - noarch

3. Description:

The JBoss Seam Framework is an application framework for building web
applications in Java.

An input sanitization flaw was found in the way JBoss Seam processed
certain parametrized JBoss Expression Language (EL) expressions. If a
remote attacker could trick an authenticated JBoss Seam user into visiting
a specially-crafted web page, it could lead to arbitrary code execution.
(CVE-2010-1871)

Red Hat would like to thank Meder Kydyraliev of the Google Security Team
for responsibly reporting this issue.

Users of jboss-seam2 should upgrade to these updated packages, which
contain a backported patch to correct this issue. The JBoss server process
must be restarted for this update to take effect.

4. 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
http://kbase.redhat.com/faq/docs/DOC-11259

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

615956 - CVE-2010-1871 JBoss Seam / Seam2: Improper sanitization of parametrized JBoss EL expressions (ACE)

6. Package List:

JBoss Enterprise Application Platform 4.3.0 for RHEL 4 AS:

Source:
jboss-seam2-2.0.2.FP-1.ep1.24.el4.src.rpm

noarch:
jboss-seam2-2.0.2.FP-1.ep1.24.el4.noarch.rpm
jboss-seam2-docs-2.0.2.FP-1.ep1.24.el4.noarch.rpm

JBoss Enterprise Application Platform 4.3.0 for RHEL 4 ES:

Source:
jboss-seam2-2.0.2.FP-1.ep1.24.el4.src.rpm

noarch:
jboss-seam2-2.0.2.FP-1.ep1.24.el4.noarch.rpm
jboss-seam2-docs-2.0.2.FP-1.ep1.24.el4.noarch.rpm

JBoss Enterprise Application Platform 4.3.0 for RHEL 5 Server:

Source:
jboss-seam2-2.0.2.FP-1.ep1.24.el5.src.rpm

noarch:
jboss-seam2-2.0.2.FP-1.ep1.24.el5.noarch.rpm
jboss-seam2-docs-2.0.2.FP-1.ep1.24.el5.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://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2010-1871.html
http://www.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2010 Red Hat, Inc.

======================================================================

          =========================================================
          Les serveurs de référence du CERT-Renater
          http://www.urec.fr/securite
          http://www.cru.fr/securite
          http://www.renater.fr
          =========================================================
          + CERT-RENATER          | tel : 01-53-94-20-44          +
          + 151 bd de l'Hopital   | fax : 01-53-94-20-41          +
          + 75013 Paris           | email: certsvp@renater.fr     +
          =========================================================