Secunia Security Advisory – Red Hat has issued an update for ntp. This fixes a security issue, which can cause ntpd to run with incorrect group permissions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48916/sa21464.txt
Source: https://packetstormsecurity.com/files/48916/Secunia-Security-Advisory-21464.html