Apple today patched a PDF Exploit that could cause allow arbitrary code execution by viewing a PDF document loaded with faulty fonts, at the same time Apple patched an integer overflow exists in the handling of IOSurface properties, which may allow malicious code running as the user to gain system privileges. This issue is addressed through improved bounds checking.

Updating to the iOS 4.0.2 clean your jailbreak iphone and delete the feature used by Jailbreame.com.

The update is recommended for iPhone and iPod Touch users.