Yeah, just want to mess around. Mainly trying to use bugs/vulns revealed by apple in ios patches (e.g. CVE-2012-3726 from https://support.apple.com/en-au/HT202615) Using my iPod 4, downgraded to ios 4.
Need to know how the exploit stuff works, and how to find them w/o using existing, patched vulns. Main type: buffer overflow. Data usually has a fixed memory size in which it is allocated (only that variable can currently use that space). Buffer overflow is when there are more bytes than the allocated space, causing memory to overflow into other memory.