Ubuntu Security Notice USN-758-1 – Sebastian Krahmer discovered that udev did not correctly validate netlink message senders. A local attacker could send specially crafted messages to udev in order to gain root privileges. Sebastian Krahmer discovered a buffer overflow in the path encoding routines in udev. A local attacker could exploit this to crash udev, leading to a denial of service.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/76682/USN-758-1.txt
Source: https://packetstormsecurity.com/files/76682/Ubuntu-Security-Notice-758-1.html