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TITLE:
Microsoft Internet Explorer "WebViewFolderIcon" Integer Overflow

SECUNIA ADVISORY ID:
SA22159

VERIFY ADVISORY:
http://secunia.com/advisories/22159/

CRITICAL:
Extremely critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
Microsoft Internet Explorer 6.x
http://secunia.com/product/11/

DESCRIPTION:
H D Moore has discovered a vulnerability in Microsoft Internet
Explorer, which can be exploited by malicious people to compromise a
user's system.

The vulnerability is caused due to an integer overflow error in the
"setSlice()" method in the "WebViewFolderIcon" ActiveX control. This
can be exploited to corrupt memory when e.g. visiting a malicious web
site.

Successful exploitation allows execution of arbitrary code.

NOTE: Exploit code is publicly available.

The vulnerability has been confirmed on a fully patched system with
Internet Explorer 6.0 and Microsoft Windows XP SP2. Other versions
may also be affected.

SOLUTION:
Only allow trusted websites to run ActiveX controls.

PROVIDED AND/OR DISCOVERED BY:
H D Moore

ORIGINAL ADVISORY:
H D Moore:
http://browserfun.blogspot.com/2006/07/mobb-18-webviewfoldericon-setslice.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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