Debian Linux Security Advisory 1899-1 – Several remote vulnerabilities have been discovered in strongswan, an implementation of the IPSEC and IKE protocols.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81785/dsa-1899-1.txt
Source: https://packetstormsecurity.com/files/81785/Debian-Linux-Security-Advisory-1899-1.html