Libreswan 3.7 and earlier allows remote attackers to cause a denial of service (NULL pointer dereference and IKE daemon restart) via IKEv2 packets that lack expected payloads. Per: http://cwe.mitre.org/data/definitions/476.html
"CWE-476 NULL Pointer Dereference"
Publication date: Mon, 27 Jan 2014 02:55:00 +0000