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Insecure Library Loading
Moderately critical

Microsoft Help Workshop Two Buffer Overflow Vulnerabilities

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Release Date:  2007-01-22    Last Update:  2007-01-24    Views:  14,616

Secunia Advisory SA23862

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


porkythepig has discovered two vulnerabilities in Microsoft Help Workshop, which can be exploited by malicious people to compromise a user's system.

1) A boundary error when processing .CNT files can be exploited to cause a stack-based buffer overflow via a specially crafted .CNT file.

2) A boundary error when processing .HPJ files can be exploited to cause a stack-based buffer overflow via a specially crafted .HPJ file with an overly long string as the HLP value in the OPTIONS section.

Successful exploitation allows execution of arbitrary code.

The vulnerabilities are confirmed in version 4.03.0002. Other versions may also be affected.


Solution:
Do not open untrusted CNT or HPJ files.

Provided and/or discovered by:
porkythepig

Original Advisory:
http://archives.neohapsis.com/archives/bugtraq/2007-01/0426.html
http://archives.neohapsis.com/archives/bugtraq/2007-01/0459.html

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: Microsoft Help Workshop Two Buffer Overflow Vulnerabilities

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