APPLE-SA-2011-07-25-2 iOS 4.2.10 Software Update for iPhone Jul 25 2011 06:32PM
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APPLE-SA-2011-07-25-2 iOS 4.2.10 Software Update for iPhone

iOS 4.2.10 Software Update for iPhone is now available and addresses
the following:

Data Security
Available for: iOS 4.2.5 through 4.2.9 for iPhone 4 (CDMA)
Impact: An attacker with a privileged network position may capture
or modify data in sessions protected by SSL/TLS
Description: 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.
CVE-2011-0228 : Gregor Kopf of Recurity Labs on behalf of BSI, and
Paul Kehrer of Trustwave's SpiderLabs

Installation note:

This update is only available through iTunes, and will not appear
in your computer's Software Update application, or in the Apple
Downloads site. Make sure you have an Internet connection and have
installed the latest version of iTunes from www.apple.com/itunes/

iTunes will automatically check Apple's update server on its weekly
schedule. When an update is detected, it will download it. When
the iPhone is docked, iTunes will present the user with the option
to install the update. We recommend applying the update immediately
if possible. Selecting Don't Install will present the option the
next time you connect your iPhone.

The automatic update process may take up to a week depending on the
day that iTunes checks for updates. You may manually obtain the
update via the Check for Updates button within iTunes. After doing
this, the update can be applied when your iPhone is docked to your

To check that the iPhone has been updated:

* Navigate to Settings
* Select General
* Select About. The version after applying this update will be
"4.2.10 (8E600)".

Information will also be posted to the Apple Security Updates
web site: http://support.apple.com/kb/HT1222

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