Quote:Security updates Apple released this week for iOS, macOS, Safari, tvOS and watchOS include patches for 21 vulnerabilities that affect open source web browser engine WebKit.
 
These bugs include 20 memory corruption issues that could lead to arbitrary code execution during the processing of maliciously crafted web content. Apple says it addressed the flaws with improved memory handling.
 
Additionally, the company addressed an out-of-bounds vulnerability in WebKit, which could result in the disclosure of process memory when processing of maliciously crafted web content. Apple improved input validation to resolve the issue. 
 
The patches for all of these vulnerabilities were also included in Safari 12.1.1. In addition to the flaws in WebKit, Apple addressed 21 other flaws in iOS. These bugs impacted components such as Contacts, Disk Images, Kernel, Lock Screen, Mail, Mail Message Framework, Photos Storage, SQLite, Status Bar, and Wi-Fi.