USN-2528-1: Linux kernel vulnerability

12 March 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

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References