RHSA-2017:0834 - Security Advisory

Topic

An update for eap7-jboss-ec2-eap is now available for Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 6 and Red Hat JBoss Enterprise Application Platform 7.0 for RHEL 7.

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.

Description

The eap7-jboss-ec2-eap package provides scripts for Red Hat JBoss Enterprise
Application Platform running on the Amazon Web Services (AWS) Elastic Compute Cloud (EC2).

With this update, the eap7-jboss-ec2-eap package has been updated to ensure
compatibility with Red Hat JBoss Enterprise Application Platform 7.0.5.

Refer to the JBoss Enterprise Application Platform 7.0.5 Release Notes, linked to in the References section, for information on the most significant bug fixes and enhancements included in this release.

Security Fix(es):

• It was discovered that the jboss init script performed unsafe file handling

which could result in local privilege escalation.(CVE-2016-8656)

• It was found that JBoss EAP 7 Header Cache was inefficient. An attacker could use this flaw to cause a denial of service attack.(CVE-2016-9589)

The CVE-2016-9589 issue was discovered by Gabriel Lavoie (Halogen Software).

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

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Affected Products

• JBoss Enterprise Application Platform 7.1 for RHEL 7 x86_64
• JBoss Enterprise Application Platform 7.1 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 7.1 for RHEL 6 i386
• JBoss Enterprise Application Platform 7.0 for RHEL 7 x86_64
• JBoss Enterprise Application Platform 7.0 for RHEL 6 x86_64
• JBoss Enterprise Application Platform 7.0 for RHEL 6 i386

Fixes

• BZ - 1400344 - CVE-2016-8656 jboss: jbossas: unsafe chown of server.log in jboss init script allows privilege escalation
• BZ - 1404782 - CVE-2016-9589 wildfly: ParseState headerValuesCache can be exploited to fill heap with garbage

CVEs

• CVE-2016-8656
• CVE-2016-9589

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/documentation/en/red-hat-jboss-enterprise-application-platform/version-7.0/
• https://access.redhat.com/documentation/en/jboss-enterprise-application-platform/