Apple has released on July 25, 2011 iOS 4.3.5 software update.
Affected products: iPad, iPod touch (3rd generation), iPhone 4, iPod touch (4th generation), iPhone 3GS, Product Security
iOS 4.3.5 Software Update resolves issues related to:
- Data Security
A certificate chain validation issue existed in the handling of X.509 certificates. An attacker with a privileged network position may capture or modify data in sessions protected by SSL/TLS. Other attacks involving X.509 certificate validation may also be possible. This issue is addressed through improved validation of X.509 certificate chains.
Read more on http://support.apple.com/kb/HT4824