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Microsoft Visual C++ Constructed ISAPI Extensions Denial of Service

by Marianna Schmudlach / March 24, 2004 12:32 AM PST

Less critical


From remote

Microsoft Visual Studio 6 Professional
Microsoft Visual C++ 6.x
Microsoft Visual Studio 6 Enterprise

A vulnerability has been reported in Microsoft Visual C++, which
potentially can be exploited by malicious people to cause a DoS
(Denial-of-Service) on certain applications.

ISAPI (Internet Server Application Programming Interface) extensions
built with the MFC (Microsoft Foundation Classes) static library may
be vulnerable to DoS attacks.

The problem is that the MFC ISAPI code may produce invalid arguments
under heavy load when processing data from POST requests. This may
cause access violations.

The following products are affected:
* Microsoft Visual Studio 6.0
* Microsoft Visual C++ 6.0

The vulnerability has been fixed in Visual Studio 6.0 Service Pack 6,
which will be available at:


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