Integer overflow in Microsoft Internet Explorer 6
Causes a denial of service (crash) or could allows remote access
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.
Additional resources:
- Microsoft: Advisory 926043
- US-CERT Technical Alert: TA06-270A
- US-CERT Vulnerability Note: VU#753044
- BrowserFun: #18
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