Buffer OverFlow Attack

How are the addresses decided for the following variables?

void foo(int a) { int x; static int y; }

I guess ill answer my own question.

The variable y is a static variable that is uninitialized, so it is allocated in the BSS segment. The variable a is a local variable, so they are stored on the programs stack. Variables are stored locations for user-supplied variables within a running program. Stacks are static locations of memory address space, whereas heaps are dynamic memory address spaces.

(High address) Stack Heap BSS segment Data segment Text segment Low address)