The libTiff Exploit is an exploit that can be used to jailbreak iPhone OS 1.0-1.1.1. It is patched as of 1.1.2.
It was used by planetbeing's jailbreak and AppSnapp. cipher's Archived 2018-10-09 at the Wayback Machine version was released in 2018 due to AppSnapp being offline.
taviso[dead link], cmw (aka Niacin), Dre, MetaSploit, rezn, dinopio, drudge, kroo, pumpkin, davidc, dunham, planetbeing, NerveGas
There was a buffer overflow in the iPhone's libtiff. This was exploited to run a small application to jailbreak and patch libtiff. This exploit was also used for PSP homebrew, which cmw also worked on. The source code of the exploit was later released by cmw on his blog Archived 2010-09-02 at the Wayback Machine.