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Red Hat Security Advisory 2016-0125-01

Red Hat Security Advisory 2016-0125-01
Posted Feb 5, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0125-01 - Red Hat JBoss Enterprise Application Platform 6 is a platform for Java applications based on JBoss Application Server 7. The following security issue is addressed with this release: It was found that the Java Standard Tag Library allowed the processing of untrusted XML documents to utilize external entity references, which could access resources on the host system and, potentially, allowing arbitrary code execution.

tags | advisory, java, arbitrary, code execution
systems | linux, redhat
advisories | CVE-2015-0254
MD5 | df4b1dc3f1a4392a622d903e7f85b6e0

Red Hat Security Advisory 2016-0125-01

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

Synopsis: Important: Red Hat JBoss Enterprise Application Platform 6.4.6 update
Advisory ID: RHSA-2016:0125-01
Product: Red Hat JBoss Enterprise Application Platform
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0125.html
Issue date: 2016-02-04
CVE Names: CVE-2015-0254
=====================================================================

1. Summary:

Updated packages that provide Red Hat JBoss Enterprise Application Platform
6.4.6, fix several bugs, add various enhancements, and resolve one security
issue are now available from the Red Hat Customer Portal.

Red Hat Product Security 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:

Red Hat JBoss Enterprise Application Platform 6 is a platform for Java
applications based on JBoss Application Server 7.

The following security issue is addressed with this release:

It was found that the Java Standard Tag Library (JSTL) allowed the
processing of untrusted XML documents to utilize external entity
references, which could access resources on the host system and,
potentially, allowing arbitrary code execution. (CVE-2015-0254)

Note: Tag Library users may need to take additional steps after applying
this update. Detailed instructions on the additional steps can be found
here:
https://access.redhat.com/solutions/1584363

Red Hat would like to thank David Jorm of IIX, and the Apache Software
Foundation for reporting the CVE-2015-0254 flaw.

This release serves as a replacement for Red Hat JBoss Enterprise
Application Platform 6.4.5, and includes bug fixes and enhancements.
Documentation for these changes will be available shortly from the Red Hat
JBoss Enterprise Application Platform 6.4.6 Release Notes, linked to in the
References.

All users of Red Hat JBoss Enterprise Application Platform 6.4 are
advised to upgrade to these updated packages. The JBoss server
process must be restarted for the update to take effect.

3. Solution:

The References section of this erratum contains a download link (you must
log in to download the update). Before applying this update, back up your
existing Red Hat JBoss Enterprise Application Platform installation and
deployed applications.

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

1198606 - CVE-2015-0254 jakarta-taglibs-standard: XXE and RCE via XSL extension in JSTL XML tags

5. References:

https://access.redhat.com/security/cve/CVE-2015-0254
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/documentation/en-US/JBoss_Enterprise_Application_Platform/6.4/index.html
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=appplatform&downloadType=securityPatches&version=6.4
https://access.redhat.com/solutions/1584363

6. 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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