Apple has released a slew of patches across its iOS and macOS operating systems, Safari browser, watchOS, tvOS, iTunes and iTunes. The most severe of the vulnerabilities is a type confusion bug (CVE-2020-3897) in WebKit, which could enable remote code execution. Users for their part are urged to update to iOS 13.4, Safari 13.1 and macOS Catalina 10.15.3. Apple also fixed two kernel vulnerabilities affecting iOS and MacOS.
Source: https://threatpost.com/apple-update-fixes-webkit-flaws-in-ios-safari/154155/