=========================================================================Ubuntu Security Notice USN-2528-1
March 12, 2015

linux vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

The system could be made to crash or run programs as an administrator.

Software Description:
- linux: Linux kernel

Details:

It was discovered that the Linux kernel's Infiniband subsystem did not
properly sanitize its input parameters while registering memory regions
from userspace. A local user could exploit this flaw to cause a denial of
service (system crash) or to potentially gain administrative privileges.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
  linux-image-3.13.0-46-generic   3.13.0-46.79
  linux-image-3.13.0-46-generic-lpae  3.13.0-46.79
  linux-image-3.13.0-46-lowlatency  3.13.0-46.79
  linux-image-3.13.0-46-powerpc-e500  3.13.0-46.79
  linux-image-3.13.0-46-powerpc-e500mc  3.13.0-46.79
  linux-image-3.13.0-46-powerpc-smp  3.13.0-46.79
  linux-image-3.13.0-46-powerpc64-emb  3.13.0-46.79
  linux-image-3.13.0-46-powerpc64-smp  3.13.0-46.79

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-2528-1
  CVE-2014-8159

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.13.0-46.79