Any good sites for learning gdb and overflows? I have got that far just stuck on where to start with that side of things. Not really done much as I’m still quiet new.
I’ll just drop a couple of links. I’d read along with these and practice, practice, practice. Calamity is the hardest BoF on the site though, so you might want to try a few others and come back to it later 
good luck
https://exploit-exercises.com/ (I’ve heard these are good, not done myself)
Check out io.netgarage.org. I’ve used that to get my mind around bof’s. corelan.be has some good stuff as well, but It’s primarily for windows, so the tools and a couple techniques may be a bit different. You should definitely play with other bof for a while before you go after this one though.
There are couple good boxes on both of the below sites:
smashthestack.org
netgarage.org
Cheers Guys, I will have a look. But like you said I might shelf it for a bit and come back once I have experience on that side.
The rest of it was very straight forward.
another nice tool to add to the list is checksec.sh. it’s also integrated into peda…