Debian Security Advisory 1230-1 – Rhys Kidd discovered a vulnerability in l2tpns, a layer 2 tunneling protocol network server, which could be triggered by a remote user to execute arbitrary code.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/52878/dsa-1230-1.txt
Source: https://packetstormsecurity.com/files/52878/Debian-Linux-Security-Advisory-1230-1.html