Apple last week released its iOS 17.4.1 and iPadOS 17.4.1 updates to iPhone and iPad users, releasing two important security patches in the process. For a reason that has yet to be declared, the company quietly released a revised build of the iOS 17.4.1 update.
The new build number is 21E237, while the previous one released to the public is 21E236. It’s thought that Apple fixed some critical bug with the new build, though you shouldn’t expect significant changes.
The new build has been confirmed by 9to5Mac as only available to those who download the IPSW file to update or restore their iPhone or iPad through Finder (or Apple Devices app on Windows). Apple has yet to make the revised build of iOS 17.4.1 available as an over-the-air (OTA) update.
The iOS 17.4.1 update patched two exploits that could lead to arbitrary code execution when processing an image. The exploits were found in CoreMedia and WebRTC. These exploits were fixed with the macOS Sonoma 14.4.1 update. Apple thanked Nick Galloway of Google Project Zero for finding and reporting the breach.
Once the new build of iOS 17.4.1 becomes available as an OTA update, you can download and install it by going to Settings > General > Software Update on your iPhone or iPad.
Stay tuned for additional details as they become available.
Via 9to5Mac