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Insecure Library Loading
Highly critical

Hyleos ChemView ActiveX Control Buffer Overflow Vulnerabilities

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Release Date:  2010-02-11    Last Update:  2010-02-24    Views:  2,976

Secunia Advisory SA38523

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


Paul Craig has discovered some vulnerabilities in the Hyleos ChemView ActiveX control, which can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to two boundary errors in the HyleosChemView.HLChemView ActiveX control (HyleosChemView.ocx). These can be exploited to cause stack-based buffer overflows by passing strings containing an overly large number of white-space characters to the "SaveasMolFile()" and "ReadMolFile()" methods.

Successful exploitation allows execution of arbitrary code.

The vulnerabilities are confirmed in HyleosChemView.ocx version 1.9.5.1. Other versions may also be affected.


Solution:
Set the kill-bit for the affected ActiveX control.

Provided and/or discovered by:
Paul Craig, Security-Assessment

Original Advisory:
http://www.security-assessment.com/files/advisories/2010-02-11_ChemviewX_Activex.pdf

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Hyleos ChemView ActiveX Control Buffer Overflow Vulnerabilities

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