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Rob Vamosi's
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CNET Security Center: Your complete source of antivirus and Internet security information.
Integer overflow in Microsoft Internet Explorer 6
By Robert Vamosi (July 25, 2006, revised September 29, 2006)
There's a vulnerability within Microsoft Internet Explorer 6 while running on a fully patched Windows XP SP2 system that allows remote attackers to cause a denial of service (crash). This flaw is due to an integer overflow error in the Common Controls library "comctl32.dll" when processing a "WebViewFolderIcon" object with a specially crafted "setSlice()" method. Specifically, a 0x7fffffff argument to the setSlice method on a WebViewFolderIcon ActiveX object may lead to an invalid memory copy, which can be exploited by attackers. Successful execution, however, requires that the victim visit a specially crafted Web page.
By Robert Vamosi (July 25, 2006, revised September 29, 2006)
QUICK FACTS
Name: Integer overflow in Microsoft Internet Explorer 6
Date first reported: 07/21/06
Vulnerable software: Internet Explorer 6 on Windows XP SP2
What it does: Causes a denial of service (crash) or could allows remote access.
Recommendations: Turn off ActiveX scripting within Internet Explorer.
Exploit code available:Yes
Vendor patch available: Yes
Date first reported: 07/21/06
Vulnerable software: Internet Explorer 6 on Windows XP SP2
What it does: Causes a denial of service (crash) or could allows remote access.
Recommendations: Turn off ActiveX scripting within Internet Explorer.
Exploit code available:Yes
Vendor patch available: Yes
Additional resources:
