Multiple vulnerabilities have been reported in Internet Explorer, which can be exploited by malicious people to gain knowledge of certain information or compromise a user's system.
1) An error in the interpretation of HTML with certain layout positioning combinations can be exploited to corrupt memory and execute arbitrary code via a specially crafted web page.
2) An error in the way chained Cascading Style Sheets (CSS) are handled can be exploited to corrupt memory and execute arbitrary code via a specially crafted web page.
3) Another error in the HTML rendering can be exploited to corrupt memory and execute arbitrary code via a specially crafted web page.
4) An error exists in the "TupleNthBvrImpl::GetTypeInfo()" function in the DirectAnimation.DATuple ActiveX control (danim.dll) when instantiating it in Internet Explorer. This can be exploited to execute arbitrary code by supplying a specially crafted, positive integer to the "Nth()" method.
5) Other errors in the way Internet Explorer instantiates COM objects not intended to be instantiated in the browser can be exploited to execute arbitrary code via a specially crafted web page.
6) An error in the way the origin of a script is determined can be exploited to run a script in another domain or security zone than intended via a specially crafted web page.
7) Script may persist across navigations making it possible to use the script to access the window location of a web page in another domain or security zone.
8) A boundary error exists in the patched version of URLMON.DLL in the "CMimeFt::ReportProgress()" function when processing compressed URLs after having been redirected. This can be exploited to cause a heap-based buffer overflow via an overly long URL.
Successful exploitation allows execution of arbitrary code.
The vulnerability affects the following patched versions:
* Internet Explorer 5 SP4 with MS06-042 on Windows 2000
* Internet Explorer 6 SP1 with MS06-042 on Windows 2000
* Internet Explorer 6 SP1 with MS06-042 on Windows XP SP1
* Internet Explorer 6 SP1 with MS06-042 on Windows Server 2003 SP0
Provided and/or discovered by: 1) The vendor credits Sam Thomas.
2) The vendor credits Sam Thomas.
3) Reported by the vendor.
4) Cody Pierce, TippingPoint Security Research Team.
5) Reported by the vendor and Will Dormann, CERT/CC.
6) Reported by the vendor.
7) Reported by the vendor.
8) Derek Soeder, eEye Digital Security.
Original Advisory: MS06-042 (KB918899):
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Subject: Internet Explorer Multiple Vulnerabilities
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