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A Bug Hunter's Diary by Tobias Klein

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Chapter 8. The Ringtone Massacre

Note

Saturday, March 21, 2009

Dear Diary,

Last week a good friend of mine loaned me his jailbroken,[82] first-generation iPhone. I was very excited. Ever since Apple announced the iPhone, I had wanted to see if I could find a bug in the device, but until last week I had never had access to one.

8.1 Vulnerability Discovery

I finally had an iPhone to play with, and I wanted to search for bugs. But where to start? The first thing I did was make a list of installed applications and libraries that seemed most likely to have bugs. The MobileSafari browser, the MobileMail app, and the audio libraries were at the top of the list. I decided that the audio libraries were the most promising targets since these libraries do a lot ...

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