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Insecure Library Loading
Moderately critical

Microsoft Visual Basic ".dsr" File Handling Buffer Overflows

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Release Date:  2008-01-21    Last Update:  2008-02-04    Views:  17,688

Secunia Advisory SA28563

Where:

From remote

Impact:

System access

Solution Status:

Unpatched

CVE Reference(s):

Description


shinnai has discovered two vulnerabilities in Microsoft Visual Basic, which can be exploited by malicious people to compromise a user's system.

The vulnerabilities are caused due to boundary errors in MSDE.dll when handling .dsr files and can be exploited to cause stack-based buffer overflows via a .dsr file with an overly-long "ConnectionName" or "CommandName" string.

Successful exploitation allows execution of arbitrary code, but requires that the user is tricked into e.g. opening a malicious .dsr file, opening the Object window via e.g. "View Object", and clicking on the "ConnectionName" or "CommandName".

The vulnerabilities are confirmed in version 6.0 (SP6). Other versions may also be affected.


Solution:
Do not open untrusted .dsr files.

Provided and/or discovered by:
shinnai

Original Advisory:
http://www.milw0rm.com/exploits/4938

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 Visual Basic ".dsr" File Handling Buffer Overflows

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