Ubuntu Security Notice 875-1 – Multiple insecure temporary file handling vulnerabilities were discovered in Red Hat Cluster. A local attacker could exploit these to overwrite arbitrary local files via symlinks. It was discovered that CMAN did not properly handle malformed configuration files. An attacker could cause a denial of service (via CPU consumption and memory corruption) in a node if the attacker were able to modify the cluster configuration for the node.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/84072/USN-875-1.txt
Source: https://packetstormsecurity.com/files/84072/Ubuntu-Security-Notice-875-1.html