NTP users are strongly urged to take immediate action to ensure that their NTP daemons are not susceptible to being used in distributed denial-of-service (DDoS) attacks. Please also take this opportunity to defeat denial-of-service attacks by implementing Ingress and Egress filtering through BCP38.See NMEARefclockUsersDev for discussion of this topic.
ntp-4.2.8p8was released on 02 June 2016. It addresses 1 high- and 4 low--severity security issues, 4 bugfixes, and contains other improvements over 4.2.8p7.
Please see the NTP Security Notice for vulnerability and mitigation details.Are you using Autokey in production? If so, please contact Harlan - he's got some questions for you.