Apple released a new version of iOS for iPhone, iPad and iPod Touch devices. Besides some new features that are being introduced with this release of iOS, Apple also patched a number of security vulnerabilities.
You can see the whole list at http://support.apple.com/kb/HT4564 - some of these are really low risk but if you scroll down to Webkit fixes, you can see that Apple patched 49 (!!!) security vulnerabilities that, according to Apple “may lead to an unexpected application termination or arbitrary code execution” (in other words: having your device pwned).
While we are not aware of exploits of these vulnerabilities being abused, it’s always better to be safe and update your i* devices as early as you can.
Mar 10th 2011
8 years ago