MacInTouch is reporting a remote denial of service exploit that affects the iPhone. Visiting malicious web pages that exploit this vulnerability will cause an iPhone or iPod Touch to hard crash, opening the possibility of malicious users injecting code to the device. The exploit causes the mobile version of Safari to crash and leads to a kernel panic, but doesn’t affect Safari running on Mac OS X.
This exploit has just been made public, and it remains to be seen whether the vulnerability behind it can be exploited in any serious ways.