Title: Clever Components Database Comparer ActiveX Control Stack Based Buffer Overflow Vulnerability
Severity: HIGH
Description:
Database Comparer ActiveX control allows users to compare, synchronize, and update database structures.
The application is prone to a stack-based buffer-overflow vulnerability because it fails to properly check boundaries on user-supplied data before copying it into an insufficiently sized memory buffer.
Specifically, the issue affects the ActiveX control with CLSID {24E0CD64-A8DE-4BE4-9706-4CFC89D212C9}, when passing an excessively long string to the 'ConnectToDatabase()' function.
Successfully exploiting this issue allows remote attackers to execute arbitrary code in the context of the application using the ActiveX control (typically Internet Explorer). Failed exploit attempts likely result in denial-of-service conditions.
This issue affects Database Comparer 2.2; other versions may also be affected.
Affected Products:
- Clever Components Database Comparer ActiveX 2.2
References:
- Clever Components: Clever Components Database Comparer ActiveX Control Homepage
- Microsoft: Microsoft Knowledge Base Article 240797
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