Question

How does automatic, compiler-generated stack checking work?

a.

It pushes an extra cookie or canary to the stack between the last local variable and the function’s return address.

b.

It executes malicious code to detect buffer overflow bugs.

c.

It generates random numbers for the stack.

d.

It prevents the execution of any kind of code.

Posted under Reverse Engineering

Answer: (a).It pushes an extra cookie or canary to the stack between the last local variable and the function’s return address. Explanation:Automatic, compiler-generated stack checking works by pushing an extra cookie or canary to the stack between the last local variable and the function’s return address.

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