About the security content of Safari 17.3

This document describes the security content of Safari 17.3.

About Apple security updates

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

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Safari 17.3

Released January 22, 2024

Safari

Available for: macOS Monterey and macOS Ventura

Impact: A user’s private browsing activity may be visible in Settings

Description: A privacy issue was addressed with improved handling of user preferences.

CVE-2024-23211: Mark Bowers

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: A maliciously crafted webpage may be able to fingerprint the user

Description: An access issue was addressed with improved access restrictions.

WebKit Bugzilla: 262699
CVE-2024-23206: an anonymous researcher

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: Processing web content may lead to arbitrary code execution

Description: The issue was addressed with improved memory handling.

WebKit Bugzilla: 266619
CVE-2024-23213: Wangtaiyu of Zhongfu info

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited.

Description: A type confusion issue was addressed with improved checks.

WebKit Bugzilla: 267134
CVE-2024-23222

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: A malicious website may cause unexpected cross-origin behavior

Description: A logic issue was addressed with improved checks.

WebKit Bugzilla: 265812
CVE-2024-23271: James Lee (@Windowsrcer)

Entry added April 24, 2024

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Published Date: April 24, 2024