Microsoft Internet Help COM Object Memory Corruption VulnerabilityTPTI-06-08: August 8th, 2006
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 4581. For further product information on the TippingPoint IPS:
Vulnerability DetailsThis vulnerability allows attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.
The specific vulnerability can lead to code execution when instantiating the Internet.HHCtrl COM object through Internet Explorer. The flaw exists due to invalid freeing of heap memory when several calls to the "Image" property of the ActiveX control are performed. By abusing the jscript.dll CScriptBody::Release() function user supplied data can be executed.
Vendor ResponseMicrosoft has issued an update to correct this vulnerability. More details can be found at:
2006-04-27 - Vulnerability reported to vendor
2006-08-08 - Coordinated public release of advisory