Secunia Security Advisory – Debian has issued an update for openswan. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81797/sa36950.txt
Source: https://packetstormsecurity.com/files/81797/Secunia-Security-Advisory-36950.html