CVE-2016-4953
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.
Date published : 2016-07-04
http://www.securityfocus.com/bid/91010
http://www.securityfocus.com/archive/1/538600/100/0/threaded