Debian Security Advisory DSA 801-1 – SuSE developers discovered that ntp confuses the given group id with the group id of the given user when called with a group id on the commandline that is specified as a string and not as a numeric gid, which causes ntpd to run with different privileges than intended.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39849/dsa-801-1.txt
Source: https://packetstormsecurity.com/files/39849/Debian-Linux-Security-Advisory-801-1.html