On May 4, Apple released the official version of iOS 12.5.3 update, which is suitable for older iPhone models that cannot install the iOS 14 update. Apple stated that this update provides important security updates and is recommended for all users to install.
Today, developers discovered that Apple has stopped signing for iOS 12.5.2. This means that it is no longer possible to downgrade or restore to the iOS 12.5.2 system through iTunes or Finder.
The iOS 12.5.3 security instructions show that this update also solves the problems of memory corruption and integer overflow in WebKit, 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.
Naijatechnews understands that this update is applicable to iPhone 5s, iPhone 6, iPhone 6 Plus, iPad Air, iPad mini 2, iPad mini 3, and the sixth-generation iPod touch. These devices no longer support iOS 13.
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