Patches for CVE-2014-3153 is available for CentOS, RHEL, CloudLinux & OpenVZ kernels. There is no exploit code available today from what we know, but it is possible that it will appear in the public any day now, and might be already sold on relavent forums.
We will provide more details on the exploit itself, once it is publish to general public by MITRE CVE Dictionary
There is no kernels yet for CentOS, RHEL & CloudLinux that fix this vulnerability. OpenVZ released updated kernel yesterday night. We plan to release updated kernel on Monday.
KernelCare customers can enjoy the safety right now.