Null pointer dereference

lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html

lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html

lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html

lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html

lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html

lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

rhn.redhat.com/errata/RHSA-2016-0780.html

rhn.redhat.com/errata/RHSA-2016-2583.html

support.ntp.org/bin/view/Main/NtpBug2939

support.ntp.org/bin/view/Main/SecurityNotice

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd

www.debian.org/security/2016/dsa-3629

www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

www.securityfocus.com/bid/81815

www.securitytracker.com/id/1034782

www.ubuntu.com/usn/USN-3096-1

bto.bluecoat.com/security-advisory/sa113

cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf

lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html

lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html

security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc

security.gentoo.org/glsa/201607-15

security.netapp.com/advisory/ntap-20171031-0001/

us-cert.cisa.gov/ics/advisories/icsa-21-103-11

www.kb.cert.org/vuls/id/718152