The reason behind the security update is that Apple's system apps are updated via system upgrade unlike in Android which “decouples" system components like the Android System Webview so that they can be updated via the Play Store. That update came alongside iOS 14.5.1 and iPadOS 14.5.1 for newer iPhone and iPad models, respectively. The new iOS version has been released nearly a month after the company released iOS 12.5.3 for older iPhones and iPad in May, which comprised fixes for four WebKit-related issues, including some zero-day flaws. Users of these devices should install the iOS 12.5.4 update to get the issues resolved. There is also a memory corruption issue with the older devices - CVE-2021-30737. The page also shows that iOS 12.5.4 addresses two vulnerabilities in the WebKit engine that are classified as CVE-2021-30761 and CVE-2021-30762. ![]() As per the support page, Apple said that the WebKit issues might have been actively exploited in particular.
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