Symptoms
According to the MSDN library, when you compile C or C++ source code by using the Visual C++ 2013 C/C++ compiler, Visual C++ 2013 should detect some buffer overrun scenarios (of course only those that can be detected at compile time) and emit warning C4789. However, some buffer overruns aren't caught with all optimization settings by Visual C++ 2013, even if you have installed the Visual Studio 2013 Update 5. No warning C4789 is emitted where the older version Visual C++ 2010 has successfully emitted warning C4789.Note After you install this hotfix, Visual C++ 2013 can detect buffer overruns and emit the warning C4789 for Release configuration builds (in case /Od isn't used).
Cause
This issue occurs because of a problem in the Visual Studio 2013 C/C++ compiler .
Resolution
Hotfix information
The following file is available for download from the Microsoft Download Center:
119591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.
Prerequisites
To apply this hotfix, you must have Visual Studio 2013 installed.
Registry information
To use the hotfix in this package, you don't have to make any changes to the registry.
Restart requirement
You don't have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix doesn't replace a previously released hotfix.
Workaround
To work around this issue, use the /Oi Compiler Switch or Code Analysis to detect more instances of buffer overruns at compile time.
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
