Apple released iOS/iPadOS 14.5.1, macOS Big Sur 11.3.1 and watchOS 7.4.1

Apple today released the official version of iOS/iPadOS 14.5.1, macOS Big Sur 11.3.1 and watchOS 7.4.1. This update has passed a week since the official release of iOS 14.5.

iOS/iPadOS 14.5.1:

Apple said that iOS 14.5.1 includes bug fixes and provides important security updates, and it is recommended for all users to install it. According to Apple’s release notes, this update fixes a bug in App Tracking Transparency that may prevent some users from receiving prompts from the app.

“This update resolves the issue of app tracking transparency. This issue previously caused some users who had disabled the Allow apps to request tracking settings to re-enable them and may not be able to receive app prompts.”

The security note shows that Apple has solved the memory corruption problem and the integer overflow problem in WebKit, both of which may be exploited by maliciously produced web content. Apple said that there are reports that these problems may have been exploited, and users are advised to upgrade immediately.

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macOS Big Sur 11.3.1:

This version of the system mainly fixes some safety faults. The update log shows that this update fixes a vulnerability in WebKit, which may cause remote code to be executed. Apple said that it has discovered that someone has exploited this vulnerability, so it is recommended that users immediately update the system.

In addition to this, Apple has also improved state management to solve the problem of memory corruption. The problem of integer overflow has also been resolved by improving input and output verification.

watchOS 7.4.1:

Apple stated that this update provides important security updates and is recommended for all users to install. Users who install the update need to make sure that the Apple Watch is charging and within the communication range of the iPhone connected to the wireless LAN. Apple Watch will start to install when it is at least 50% charged.

Previously, after updating watchOS 7.4, the iPhone equipped with iOS 14.5 and supporting Face ID can be unlocked through Apple Watch while the user is wearing a mask.

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