Format Bugs – What they are, Where they came from, and How to exploit them. Users can often input format strings into printf and other statments, causing the stack to be overwritten. Includes code samples and debugger output.
You can download it from the following link: https://packetstormsecurity.com/files/download/22258/format_bugs.txt
Source: https://packetstormsecurity.com/files/22258/format_bugs.txt.html