It means that there is more data in the storage location than can be stored in the memory space. When memory is filled with data, the system stops processing instructions because there is not enough memory to hold them. A Buffer Overflow occurs when the size of a data buffer is larger than the data that is being stored. The data is copied directly into the memory, and then it is no longer possible to retrieve it. This can cause serious issues with software, as well as cause damage to hardware.
Buffer Overflows can be detected by looking at the code to see if there is any special instruction to check for a certain value. If there is, it is possible to insert a value that will cause the system to check for a certain value. By inserting a value that will cause the system to check for a certain value, it becomes possible to cause the system to crash.
How do you detect a Buffer Overflow?
There are many ways to detect a Buffer Overflow, some of which are listed below.
1) The program will crash and not execute any more instructions.
2) There is a memory address that can be accessed and the content of this memory address will change in a certain way.
3) There will be a string of 0's in the code that indicate an overflow.
4) There is unusual behavior from the program such as it running faster than expected or slower than expected.
5) If there is a string of 0's, this could be an indication of an overflow.
Timeline
Published on: 06/08/2022 13:15:00 UTC
Last modified on: 06/16/2022 13:12:00 UTC