USN-2273-1: Linux kernel vulnerability

Ubuntu Security Notice USN-2273-1

5th July, 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


Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on
x86_64 processors. An attacker could exploit this flaw to cause a denial of
service (System Crash) or potential gain administrative privileges.

Update instructions

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

Ubuntu 13.10:
linux-image-3.11.0-24-generic-lpae 3.11.0-24.42
linux-image-3.11.0-24-generic 3.11.0-24.42

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.