The WPG format reader in GraphicsMagick 1.3.25 and earlier allows remote attackers to cause a denial of service (assertion failure and crash) via vectors related to a ReferenceBlob and a NULL pointer.Referenceshttp://www.debian.org/security/2016/dsa-3746http://www.openwall.com/lists/oss-security/2016/10/07/4http://www.openwall.com/lists/oss-security/2016/10/08/5http://www.securityfocus.com/bid/93467
