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Red Hat Security Advisory 2016-1650-01

Red Hat Security Advisory 2016-1650-01
Posted Aug 22, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1650-01 - 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, JBoss HTTP Connector, Hibernate, and the Tomcat Native library. This release serves as a replacement for Red Hat JBoss Web Server 2.1.0, and includes several bug fixes.

tags | advisory, java, web
systems | linux, redhat
advisories | CVE-2014-3570, CVE-2015-0204, CVE-2016-2105, CVE-2016-2106, CVE-2016-3110, CVE-2016-5387
SHA-256 | 1fdd97874e8f34357aa4e0e66133e9488d4279f97fb76a354f29754e7682ff4a

Red Hat Security Advisory 2016-1650-01

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

Synopsis: Important: Red Hat JBoss Web Server 2.1.1 security update
Advisory ID: RHSA-2016:1650-01
Product: Red Hat JBoss Web Server
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-1650.html
Issue date: 2016-08-22
CVE Names: CVE-2014-3570 CVE-2015-0204 CVE-2016-2105
CVE-2016-2106 CVE-2016-3110 CVE-2016-5387
=====================================================================

1. Summary:

An update is now available for Red Hat JBoss Web Server.

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 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.

This release serves as a replacement for Red Hat JBoss Web Server 2.1.0,
and includes several bug fixes. Refer to the Red Hat JBoss Web Server 2.1.1
Release Notes, linked to in the References section, for information on the
most significant of these changes.

Security Fix(es):

* It was discovered that httpd used the value of the Proxy header from HTTP
requests to initialize the HTTP_PROXY environment variable for CGI scripts,
which in turn was incorrectly used by certain HTTP client implementations
to configure the proxy for outgoing HTTP requests. A remote attacker could
possibly use this flaw to redirect HTTP requests performed by a CGI script
to an attacker-controlled proxy via a malicious HTTP request.
(CVE-2016-5387)

* It was discovered that OpenSSL would accept ephemeral RSA keys when using
non-export RSA cipher suites. A malicious server could make a TLS/SSL
client using OpenSSL use a weaker key exchange method. (CVE-2015-0204)

* An integer overflow flaw, leading to a buffer overflow, was found in the
way the EVP_EncodeUpdate() function of OpenSSL parsed very large amounts of
input data. A remote attacker could use this flaw to crash an application
using OpenSSL or, possibly, execute arbitrary code with the permissions of
the user running that application. (CVE-2016-2105)

* An integer overflow flaw, leading to a buffer overflow, was found in the
way the EVP_EncryptUpdate() function of OpenSSL parsed very large amounts
of input data. A remote attacker could use this flaw to crash an
application using OpenSSL or, possibly, execute arbitrary code with the
permissions of the user running that application. (CVE-2016-2106)

* It was discovered that it is possible to remotely Segfault Apache http
server with a specially crafted string sent to the mod_cluster via service
messages (MCMP). (CVE-2016-3110)

* It was found that OpenSSL's BigNumber Squaring implementation could
produce incorrect results under certain special conditions. This flaw could
possibly affect certain OpenSSL library functionality, such as RSA
blinding. Note that this issue occurred rarely and with a low probability,
and there is currently no known way of exploiting it. (CVE-2014-3570)

Red Hat would like to thank Scott Geary (VendHQ) for reporting
CVE-2016-5387; the OpenSSL project for reporting CVE-2016-2105 and
CVE-2016-2106; and Michal Karm Babacek for reporting CVE-2016-3110.
Upstream acknowledges Guido Vranken as the original reporter of
CVE-2016-2105 and CVE-2016-2106.

3. Solution:

Before applying the update, back up your existing Red Hat JBoss Web Server
installation (including all applications and configuration files).

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

Refer to the Red Hat JBoss Enterprise Web Server 2.1.1 Release Notes for a
list of non security related fixes.

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

1180184 - CVE-2015-0204 openssl: only allow ephemeral RSA keys in export ciphersuites (FREAK)
1180240 - CVE-2014-3570 openssl: Bignum squaring may produce incorrect results
1326320 - CVE-2016-3110 mod_cluster: remotely Segfault Apache http server
1331441 - CVE-2016-2105 openssl: EVP_EncodeUpdate overflow
1331536 - CVE-2016-2106 openssl: EVP_EncryptUpdate overflow
1337151 - CVE-2016-2105 openssl: EVP_EncodeUpdate overflow [jbews-2.1.0]
1337155 - CVE-2016-2106 openssl: EVP_EncryptUpdate overflow [jbews-2.1.0]
1353755 - CVE-2016-5387 Apache HTTPD: sets environmental variable based on user supplied Proxy request header
1358118 - CVE-2016-5387 Apache HTTPD: sets environmental variable based on user supplied Proxy request header [jbews-2.1.0]

5. References:

https://access.redhat.com/security/cve/CVE-2014-3570
https://access.redhat.com/security/cve/CVE-2015-0204
https://access.redhat.com/security/cve/CVE-2016-2105
https://access.redhat.com/security/cve/CVE-2016-2106
https://access.redhat.com/security/cve/CVE-2016-3110
https://access.redhat.com/security/cve/CVE-2016-5387
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=distributions&version=2.1.1
https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Web_Server/2.1/html/2.1.1_Release_Notes/index.html
https://access.redhat.com/site/documentation/
https://access.redhat.com/site/documentation/en-US/JBoss_Enterprise_Web_Server/2/html-single/Installation_Guide/index.html
https://access.redhat.com/security/vulnerabilities/httpoxy

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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