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[RHSA-2014:0835-01] Moderate: Red Hat JBoss Web Server 2.0.1 tomcat7 security update



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

Synopsis:          Moderate: Red Hat JBoss Web Server 2.0.1 tomcat7 security update
Advisory ID:       RHSA-2014:0835-01
Product:           Red Hat JBoss Web Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0835.html
Issue date:        2014-07-03
CVE Names:         CVE-2014-0075 CVE-2014-0096 CVE-2014-0099 
=====================================================================

1. Summary:

Updated tomcat7 packages that fix three security issues are now available
for Red Hat JBoss Web Server 2.0.1 on Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having Moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat JBoss Web Server 2 for RHEL 5 Server - noarch
Red Hat JBoss Web Server 2 for RHEL 6 Server - noarch

3. Description:

Red Hat JBoss Web Server is a fully integrated and certified set of
components for hosting Java web applications. It is comprised of the Apache
HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector
(mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat
Native library.

It was discovered that Apache Tomcat did not limit the length of chunk
sizes when using chunked transfer encoding. A remote attacker could use
this flaw to perform a denial of service attack against Tomcat by streaming
an unlimited quantity of data, leading to excessive consumption of server
resources. (CVE-2014-0075)

It was found that Apache Tomcat did not check for overflowing values when
parsing request content length headers. A remote attacker could use this
flaw to perform an HTTP request smuggling attack on a Tomcat server located
behind a reverse proxy that processed the content length header correctly.
(CVE-2014-0099)

It was found that the org.apache.catalina.servlets.DefaultServlet
implementation in Apache Tomcat allowed the definition of XML External
Entities (XXEs) in provided XSLTs. A malicious application could use this
to circumvent intended security restrictions to disclose sensitive
information. (CVE-2014-0096)

The CVE-2014-0075 issue was discovered by David Jorm of Red Hat Product
Security.

All users of Red Hat JBoss Web Server 2.0.1 are advised to upgrade to these
updated tomcat7 packages, which contain backported patches to correct these
issues. The Red Hat JBoss Web Server process must be restarted for the
update to take effect.

4. Solution:

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

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/knowledge/articles/11258

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

1072776 - CVE-2014-0075 Tomcat/JBossWeb: Limited DoS in chunked transfer encoding input filter
1088342 - CVE-2014-0096 Tomcat/JBossWeb: XXE vulnerability via user supplied XSLTs
1102030 - CVE-2014-0099 Tomcat/JBossWeb: Request smuggling via malicious content length header

6. Package List:

Red Hat JBoss Web Server 2 for RHEL 5 Server:

Source:
tomcat7-7.0.40-14_patch_03.ep6.el5.src.rpm

noarch:
tomcat7-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-admin-webapps-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-docs-webapp-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-el-2.2-api-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-javadoc-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-jsp-2.2-api-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-lib-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-log4j-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-servlet-3.0-api-7.0.40-14_patch_03.ep6.el5.noarch.rpm
tomcat7-webapps-7.0.40-14_patch_03.ep6.el5.noarch.rpm

Red Hat JBoss Web Server 2 for RHEL 6 Server:

Source:
tomcat7-7.0.40-11_patch_03.ep6.el6.src.rpm

noarch:
tomcat7-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-admin-webapps-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-docs-webapp-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-el-2.2-api-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-javadoc-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-jsp-2.2-api-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-lib-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-log4j-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-servlet-3.0-api-7.0.40-11_patch_03.ep6.el6.noarch.rpm
tomcat7-webapps-7.0.40-11_patch_03.ep6.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2014-0075.html
https://www.redhat.com/security/data/cve/CVE-2014-0096.html
https://www.redhat.com/security/data/cve/CVE-2014-0099.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2014 Red Hat, Inc.
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