USN-2096-1: Linux kernel vulnerability

31 January 2014

linux vulnerability

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

  • Ubuntu 13.10


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

Software Description

  • linux - Linux kernel


Pageexec reported a bug in the Linux kernel’s recvmmsg syscall when called from code using the x32 ABI. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrator privileges.

Update instructions

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

Ubuntu 13.10
linux-image-3.11.0-15-generic - 3.11.0-15.25
linux-image-3.11.0-15-generic-lpae - 3.11.0-15.25

To update your system, please follow these instructions:

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