Secunia Security Advisory – FreeBSD has issued an update for tcpdump. This fixes some vulnerabilities, 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/37956/sa15646.txt
Source: https://packetstormsecurity.com/files/37956/Secunia-Security-Advisory-15646.html