Secunia Security Advisory – FreeBSD has acknowledged a vulnerability in OPIE, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/90000/sa39963.txt
Source: https://packetstormsecurity.com/files/90000/Secunia-Security-Advisory-39963.html