Debian Security Advisory 1299-1 – It was discovered that a specially-crafted packet sent to the racoon ipsec key exchange server could cause a tunnel to crash, resulting in a denial of service.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/57101/dsa-1299-1.txt
Source: https://packetstormsecurity.com/files/57101/Debian-Linux-Security-Advisory-1299-1.html