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Word Viewer OCX ActiveX Control Buffer Overflow Vulnerabilities
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Secunia Advisory:
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SA25100
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Release Date:
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2007-05-03
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Last Update:
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2007-05-10
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Popularity:
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6,571 views
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Critical:
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Highly critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Word Viewer OCX 3.x
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| CVE reference: | CVE-2007-2496
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Description:
shinnai has discovered some vulnerabilities in Word Viewer OCX, which can be exploited by malicious people to compromise a user's system.
The vulnerabilities are caused due to boundary errors within the Word Viewer ActiveX control (WordViewer.ocx). These can be exploited to cause stack-based buffer overflows via overly long arguments passed to certain methods (e.g. "HttpDownloadFile()" or "OpenWebFile()").
Successful exploitation may allow execution of arbitrary code when a user visits a malicious website.
The vulnerabilities are confirmed in version 3.2.0.5. Other versions may also be affected.
Solution:
Set the kill-bit for the affected ActiveX control.
Provided and/or discovered by:
shinnai
Changelog:
2007-05-10: Added CVE reference.
Original Advisory:
http://moaxb.blogspot.com/2007/05/moaxb-03-wordviewerocx-32-multiple_03.html
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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