ntp is vulnerable to denial of service. It was found that ntpd would exit with a segmentation fault when a statistics type that was not enabled during compilation (e.g. timingstats) was referenced by the statistics or filegen configuration command.
lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html
lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html
lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html
rhn.redhat.com/errata/RHSA-2016-0780.html
rhn.redhat.com/errata/RHSA-2016-2583.html
www.debian.org/security/2015/dsa-3388
www.openwall.com/lists/oss-security/2015/08/25/3
www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
www.securityfocus.com/bid/76474
www.ubuntu.com/usn/USN-2783-1
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Release_Notes/index.html
access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.8_Technical_Notes/index.html
access.redhat.com/errata/RHSA-2016:0780
access.redhat.com/errata/RHSA-2016:2583
access.redhat.com/security/cve/CVE-2015-5195
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1254544
bugzilla.redhat.com/show_bug.cgi?id=1286969
github.com/ntp-project/ntp/commit/52e977d79a0c4ace997e5c74af429844da2f27be
rhn.redhat.com/errata/RHSA-2016-0780.html
www-01.ibm.com/support/docview.wss?uid=isg3T1024157
www-01.ibm.com/support/docview.wss?uid=swg21985122
www-01.ibm.com/support/docview.wss?uid=swg21986956
www-01.ibm.com/support/docview.wss?uid=swg21988706
www-01.ibm.com/support/docview.wss?uid=swg21989542