Apple releases iOS 15.3 RC and closes iOS 15.2 verification channel

According to the update file, this update mainly includes bug fixes and security updates, and no new features are mentioned.

Netizens reported that this time the main solution was a Safari error, which may cause the user's recent browsing history or detailed information to be leaked.

The vulnerability allows any website using IndexedDB for client-side data storage to access the names of IndexedDB databases generated by other websites during a user's browsing session.

The bug could allow a website to track other sites a user visits in different tabs or windows, and because database names tend to be unique to each website, sometimes database names contain user-specific identifiers that could reveal the user's identity.

Browsers using Apple's WebKit engine are affected, including Safari 15 for Mac and Safari for iOS 15 and iPadOS 15. Some third-party browsers such as Chrome were also affected on iOS and iPadOS 15, but the macOS Monterey 12.2, iOS 15.3, and iPadOS 15.3 updates fixed the vulnerability.

In addition, Apple has officially closed the verification channel for the iOS 15.2 system, which also means that if you are using iOS 15.2 or above, you will not be able to downgrade.