eWhen When an exception is thrown, control is transferred to the nearest handler with a type that matches the type of the exception thrown. If no matching handler is directly found within the handlers for a try block in which the exception is thrown, the search for a matching handler continues to dynamically search for handlers in the surrounding try blocks of the same thread. The C++ Standard, [except.handle], paragraph 9 [ISO/IEC 14882-2014], states:
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The default terminate handler called by std::terminate() calls std::abort(), which abnormally terminates the process. When std::abort() is called, or if the implementation does not unwind the stack prior to calling std::terminate(), destructors for objects may not be called and external resources can be left in an indeterminate state. Abnormal process termination is the typical vector for denial-of-service attacks. For more information on implicitly calling std::terminate(), see ERR50-CPP. Do not call std::terminate(), std::abort(), or std::_Exit()abruptly terminate the program.
All exceptions thrown by an application must be caught by a matching exception handler. Even if the exception cannot be gracefully recovered from, using the matching exception handler ensures that the stack will be properly unwound and provides an opportunity to gracefully manage external resources before terminating the process.
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| SEI CERT C++ Coding Standard | ERR50-CPP. Do not call std::terminate(), std::abort(), or std::_Exit()abruptly terminate the program |
| MITRE CWE | CWE-754, Improper Check for Unusual or Exceptional Conditions |
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