About the security content of Safari 16.1

This document describes the security content of Safari 16.1.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

Safari 16.1

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A use after free issue was addressed with improved memory management.

CVE-2022-42826: Francisco Alonso (@revskills)

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Visiting a malicious website may lead to user interface spoofing

Description: The issue was addressed with improved UI handling.

CVE-2022-42799: Jihwan Kim (@gPayl0ad), Dohyun Lee (@l33d0hyun)

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A type confusion issue was addressed with improved memory handling.

CVE-2022-42823: Dohyun Lee (@l33d0hyun) of SSD Labs

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may disclose sensitive user information

Description: A logic issue was addressed with improved state management.

CVE-2022-42824: Abdulrahman Alqabandi of Microsoft Browser Vulnerability Research, Ryan Shin of IAAI SecLab at Korea University, Dohyun Lee (@l33d0hyun) of DNSLab at Korea University

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may disclose internal states of the app

Description: A correctness issue in the JIT was addressed with improved checks.

CVE-2022-32923: Wonyoung Jung (@nonetype_pwn) of KAIST Hacking Lab

WebKit PDF

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A use after free issue was addressed with improved memory management.

CVE-2022-32922: Yonghwi Jin (@jinmo123) at Theori working with Trend Micro Zero Day Initiative

Additional recognition

WebKit

We would like to acknowledge Maddie Stone of Google Project Zero, Narendra Bhati (@imnarendrabhati) of Suma Soft Pvt. Ltd., an anonymous researcher for their assistance.