The kea-dhcp4 and kea-dhcp6 servers 0.9.2 and 1.0.0-beta in ISC Kea, when certain debugging settings are used, allow remote attackers to cause a denial of service (daemon crash) via a malformed packet.
https://kb.isc.org/article/AA-01318
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175337.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175218.html