![]() What is a Buffer Overflow?Ī buffer is a sequential section/ area of memory storage where data is temporarily stored while in transition/movement from one location to another. Notorious hacking incidents like WhatsApp VoIP (2019), Stagefright (2015), and Morris Worm (1998) stand as examples of the devastating consequences caused by buffer overflow attacks. Hackers know this and can manipulate buffers to execute device takeovers and compromise security. Boundary checks or boundary testing must be performed by testers to check the upper and lower limit of the temporary storage.Buffer overflow, a critical concern in cybersecurity, occurs when a program exceeds its memory buffer’s capacity, resulting in potential data corruption or program crashes.Programmers need to test the code with additional values that will exceed the buffer size and check the application before launching.Input validations need to be set in an appropriate way to avoid this.When a system can execute a code that resides in the stack segment.When there is a lack of boundary-testing in the application, as done by the programmer or tester.Two Important Reasons for Which Buffer Overflow Occurs Applications that are prone to buffer overflow are not set with proper filtering and validations criteria.Applications built in old programming languages such a FORTRAN, C, etc. ![]() ![]()
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