Although Apple is currently focusing its efforts on both Big Sur and the next version of macOS, whose name we probably know at WWDC 2021 to be held in June, those in Cupertino are not forgetting all those users who still they continue to use older versions of their operating systems.
From the Cupertino servers, Apple has released Safari 14.1, a version available for both macOS Mojave users and macOS Catalina users and it is recommended to update as it includes different security patches that mainly affected WebKit.
This problem has also been patched in version 14.1 of Safari for iOS 14.5, iPadOS 14.5, iOS 12.5.3 and macOS Big Sur 11.3.1, so if you have updated to this version, you do not need to worry as long as your device has been updated to the latest version.
Mac users whose computer is managed by macOS Catalina or macOS Mojave You can find this update available for download in Preferences, in the Software Update section, or through the Apple menu - System Preferences.
The details of this update are as follows:
W
Available for: macOS Catalina and macOS Mojave
Impact: Malicious web content processing may lead to arbitrary code execution. Apple is aware of a report indicating that this issue may have been actively exploited.
Description: A memory corruption issue has been addressed with improved state management.
CVE-2021-30665: yangkang (@dnpushme) & zerokeeper & bianliang from 360 ATA
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Available for: macOS Catalina and macOS Mojave
Impact: Malicious web content processing may lead to arbitrary code execution. Apple is aware of a report indicating that this issue may have been actively exploited.
Description: An integer overflow was addressed with improved input validation.
CVE-2021-30663: an anonymous researcher