Consider section on binary image exploits

[sam-ellis]

Suggestion to add a section on binary images and how these are constructed and can be exploited, for example:

• code versus data
• read-only, relro, execute-only
• ASLR
• PLTs / GOTs
• vtables
• ...

[g-kouv]

I've already mentioned ASLR briefly in the code reuse mitigations section, but I agree that the rest of the things on the list would also be relevant, possibly in the memory vulnerabilities chapter. Any suggestions on where they'd fit best are welcome!