Secunia Security Advisory – Gentoo has issued an update for ntp. This fixes 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/76391/sa34588.txt
Source: https://packetstormsecurity.com/files/76391/Secunia-Security-Advisory-34588.html