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

Synopsis:          Important: Red Hat JBoss Enterprise Application Platform security update
Advisory ID:       RHSA-2017:0517-01
Product:           Red Hat JBoss Enterprise Application Platform
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2017-0517.html
Issue date:        2017-03-14
CVE Names:         CVE-2016-6346 CVE-2016-8657 CVE-2017-6056 
=====================================================================

1. Summary:

An update is now available for Red Hat JBoss Enterprise Application
Platform.

Red Hat Product Security has rated this update as having a security impact
of Important. 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. Description:

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

This release of Red Hat JBoss Enterprise Application Platform 6.4.14 serves
as a replacement for Red Hat JBoss Enterprise Application Platform 6.4.13,
and includes bug fixes and enhancements, which are documented in the
Release Notes document linked to in the References.

Security Fix(es):

* It was discovered that EAP packages in certain versions of Red Hat
Enterprise Linux use incorrect permissions for /etc/sysconfig/jbossas
configuration files. The file is writable to jboss group (root:jboss, 664).
On systems using classic /etc/init.d init scripts (i.e. on Red Hat
Enterprise Linux 6 and earlier), the file is sourced by the jboss init
script and its content executed with root privileges when jboss service is
started, stopped, or restarted. (CVE-2016-8657) 

* It was discovered that a programming error in the processing of HTTPS
requests in the Apache Tomcat servlet and JSP engine may result in denial
of service via an infinite loop. (CVE-2017-6056)

* It was found that GZIPInterceptor is enabled when not necessarily
required in RESTEasy. An attacker could use this flaw to launch a Denial of
Service attack. (CVE-2016-6346)

Red Hat would like to thank Mikhail Egorov (Odin) for reporting the
CVE-2016-6346 issue.

3. Solution:

Before applying this update, back up your existing Red Hat JBoss Enterprise
Application Platform installation and deployed applications.

The References section of this erratum contains a download link (you must
log in to download the update).

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

1372120 - CVE-2016-6346 RESTEasy: Abuse of GZIPInterceptor in RESTEasy can lead to denial of service attack
1400343 - CVE-2016-8657 jboss: jbossas writable config files allow privilege escalation
1422148 - CVE-2017-6056 tomcat: Infinite loop in the processing of https requests

5. References:

https://access.redhat.com/security/cve/CVE-2016-6346
https://access.redhat.com/security/cve/CVE-2016-8657
https://access.redhat.com/security/cve/CVE-2017-6056
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/documentation/en/jboss-enterprise-application-platform/
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=appplatform&downloadType=securityPatches&version=6.4

6. Contact:

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

Copyright 2017 Red Hat, Inc.
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