icqateimg32.dll parsing/rendering library in Mirabilis ICQ Pro 2003a allows remote attackers to cause a denial of service via malformed GIF89a headers that do not contain a GCT (Global Color Table) or an LCT (Local Color Table) after an Image Descriptor.
https://exchange.xforce.ibmcloud.com/vulnerabilities/11948
http://www.securityfocus.com/bid/7466
http://www.coresecurity.com/common/showdoc.php?idx=315&idxseccion=10
http://marc.info/?l=bugtraq&m=105216842131995&w=2
http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0051.html