CVE-2006-3899
Microsoft Internet Explorer 6.0 on Windows XP SP2 allows remote attackers to cause a denial of service (application crash) by calling the stringToBinary function of the CEnroll.CEnroll.2 ActiveX object with a long second argument, which triggers an invalid memory access inside the SysAllocStringLen function.
Date published : 2006-07-27
http://www.securityfocus.com/bid/19102
http://browserfun.blogspot.com/2006/07/mobb-21-cenroll-stringtobinary.html