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A classical programming bug that may lead to a possible security flaw in software. Exploitation of this bug is usually taking place either in the stack or in the heap.

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What could be the purpose of XORing esp with a global variable? (stack canary protection)

I am currently looking at a function inside a Win32 executable's main module. After allocating memory on the stack (sub esp) and saving some registers on the stack, the value of esp is XORed with a gl …
InkassoHeinzi's user avatar