alloc8 untethered bootrom exploit for iPhone 3GS

Write-up for alloc8: untethered bootrom exploit for iPhone 3GS
alloc8 brings freedom to millions of iPhone 3GS devices, forever, by exploiting a powerful vulnerability in function malloc in the bootrom. Both revisions of iPhone 3GS bootrom are vulnerable, but old bootrom is also vulnerable to 24Kpwn, which is faster than alloc8.[…]

https://github.com/axi0mX/alloc8