RHSA-2016:2055 - Security Advisory

Topic

Updated packages that provide Red Hat JBoss Enterprise Application Platform 6.4.10 natives, fix several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

Description

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

This release includes bug fixes and enhancements, as well as a new release of OpenSSL. For further information, see the knowledge base article linked to in the References section. All users of Red Hat JBoss Enterprise Application Platform 6.4 on Red Hat Enterprise Linux 6 are advised to upgrade to these updated packages. The JBoss server process must be restarted for the update to take effect.

Security Fix(es):

• Multiple flaws were found in the way httpd parsed HTTP requests and responses using chunked transfer encoding. A remote attacker could use these flaws to create a specially crafted request, which httpd would decode differently from an HTTP proxy software in front of it, possibly leading to HTTP request smuggling attacks. (CVE-2015-3183)
• 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 discovered that specifying configuration with a JVMRoute path longer than 80 characters will cause segmentation fault leading to a server crash. (CVE-2016-4459)

Red Hat would like to thank Michal Karm Babacek for reporting CVE-2016-3110. The CVE-2016-4459 issue was discovered by Robert Bost (Red Hat).

Solution

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

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

For the update to take effect, all services linked to the OpenSSL library must be restarted, or the system rebooted.

Affected Products

• JBoss Enterprise Application Platform 6.4 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6.4 for RHEL 6 ppc64
• JBoss Enterprise Application Platform 6.4 for RHEL 6 i386
• JBoss Enterprise Application Platform 6 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 6 for RHEL 6 ppc64
• JBoss Enterprise Application Platform 6 for RHEL 6 i386

Fixes

• BZ - 1243887 - CVE-2015-3183 httpd: HTTP request smuggling attack against chunked request parser
• BZ - 1326320 - CVE-2016-3110 mod_cluster: remotely Segfault Apache http server
• BZ - 1341583 - CVE-2016-4459 mod_cluster: Buffer overflow in mod_manager when sending request with long JVMRoute
• BZ - 1345987 - RHEL6 RPMs: Upgrade mod_cluster-native to 1.2.13.Final-redhat-1
• BZ - 1345991 - RHEL6 RPMs: Upgrade mod_jk to 1.2.41.redhat-1
• BZ - 1345995 - RHEL6 RPMs: Upgrade tomcat-native to 1.1.34

CVEs

• CVE-2015-3183
• CVE-2016-3110
• CVE-2016-4459

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/articles/2688611
• https://access.redhat.com/solutions/222023
• 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