Secunia Security Advisory – Debian has issued an update for gnutls13 and gnutls26. This fixes a weakness and a vulnerability, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/82787/sa37374.txt
Source: https://packetstormsecurity.com/files/82787/Secunia-Security-Advisory-37374.html