The crypto_xmit function in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.
rhn.redhat.com/errata/RHSA-2016-0780.html
rhn.redhat.com/errata/RHSA-2016-2583.html
support.ntp.org/bin/view/Main/NtpBug2899
www.debian.org/security/2015/dsa-3388
www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
www.securityfocus.com/bid/77286
www.securitytracker.com/id/1033951
security.gentoo.org/glsa/201607-15
security.netapp.com/advisory/ntap-20171004-0001/