OpenVZ has issued an update for the kernel. This fixes multiple vulnerabilities, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and potentially gain escalated privileges, by malicious, local users in a guest virtual machine to cause a DoS (Denial of Service), and by malicious people to cause a DoS (Denial of Service) and compromise a vulnerable system.

For more information:
SA48294

Solution
Update kernel branch RHEL6 to version 042stab053.5.
Original Advisory
http://wiki.openvz.org/Download/kernel/rhel6/042stab053.5

Other references
Further details available to Secunia VIM customers

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