Related Vulnerabilities: CVE-2016-7434  

If ntpd is configured to allow mrulist query requests from a server that sends a crafted malicious packet, ntpd will crash on receipt of that crafted malicious mrulist query packet.

Severity Medium

Remote Yes

Type Denial of service

Description

If ntpd is configured to allow mrulist query requests from a server that sends a crafted malicious packet, ntpd will crash on receipt of that crafted malicious mrulist query packet.

AVG-80 ntp 4.2.8.p8-1 4.2.8.p9-1 High Fixed

AVG-79 ntp 4.2.8.p8-1 4.2.8.p9-1 High Fixed

26 Nov 2016 ASA-201611-28 AVG-79 ntp High multiple issues

http://support.ntp.org/bin/view/Main/NtpBug3082

Mitigation:
Only allow mrulist query packets from trusted hosts.