Security fixes

[Fierelier]

Fixes issue #38 and might fix #39 - I don't know, I can't read straight, and can't even get the exploit to work. I always get this error:

Loading vm file exploit.qvm...
libc base: 0x00000000ffff7298
INCORRECT LIBC BASE ALIGN

My attention span has ran out and I hope this is good enough. @jnz I hope this finds you, you probably have a better understanding of this than I do.