Important: pacemaker security update

Synopsis

Important: pacemaker security update

Type/Severity

Security Advisory: Important

Topic

An update for pacemaker is now available for Red Hat Enterprise Linux 6.

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 Pacemaker cluster resource manager is a collection of technologies working together to provide data integrity and the ability to maintain application availability in the event of a failure.

Security Fix(es):

• An authorization flaw was found in Pacemaker, where it did not properly guard its IPC interface. An attacker with an unprivileged account on a Pacemaker node could use this flaw to, for example, force the Local Resource Manager daemon to execute a script as root and thereby gain root access on the machine. (CVE-2016-7035)
  

This issue was discovered by Jan "poki" Pokorny (Red Hat) and Alain Moulle (ATOS/BULL).

Solution

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

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

Affected Products

• Red Hat Enterprise Linux High Availability (for RHEL Server) 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) 6 i386

Fixes

• BZ - 1369732 - CVE-2016-7035 pacemaker: Privilege escalation due to improper guarding of IPC communication

CVEs

• CVE-2016-7035

References

• https://access.redhat.com/security/updates/classification/#important