shinnai has discovered a vulnerability in Database Comparer ActiveX, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error within the Database Comparer ActiveX control (comparerax.ocx) when handling the "ConnectToDatabase()" method. This can be exploited to cause a stack-based buffer overflow by passing an overly long argument to the affected method.
Successful exploitation allows execution of arbitrary code.
The vulnerability is confirmed in version 2.2. Other versions may also be affected.
Solution: Set the kill-bit for the affected ActiveX control.
Provided and/or discovered by: shinnai
Original Advisory: http://moaxb.blogspot.com/2007/05/moaxb-14-clever-database-comparer.html
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Subject: Database Comparer ActiveX Control Buffer Overflow Vulnerability
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