Apple has released iOS 9.0.2 with some minor bug fixes and an important security fix related to Siri. According to the notes, "A person with physical access to an iOS device may be able to access photos and contacts from the lock screen."
The update is applicable back to the iPhone 4s, iPad 2, iPad mini and iPod touch 5G. It is version 12A452 and is 72 MB in size.
Apple lists the changes as follows:
- Fixes an issue with the setting to turn on or off app cellular data usage.
- Resolves an issue that prevented iMessage activation for some users.
- Resolves an issue where an iCloud backup could be interrupted after starting a manual backup.
- Fixes an issue where the screen could incorrectly rotate when receiving notifications.
- Improves the stability of Podcasts.
Perhaps most important change is a fix for security bug CVE-2015-5923 as follows.
Lock Screen Available for: iPhone 4s and later, iPod touch (5th generation) and later, iPad 2 and later Impact: A person with physical access to an iOS device may be able to access photos and contacts from the lock screen Description: A lock screen issue allowed access to photos and contacts on a locked device. This issue was addressed by restricting options offered on a locked device.
Apple maintains a log of all security updates with more details.
As always, iOS Updates can be found in Settings > General > Software Update.