Debian Linux Security Advisory 2037-1 – Sebastian Krahmer discovered that a race condition in the KDE Desktop Environment’s KDM display manager, allow a local user to elevate privileges to root.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/88647/dsa-2037-1.txt
Source: https://packetstormsecurity.com/files/88647/Debian-Linux-Security-Advisory-2037-1.html