About the security content of Safari 17.4

This document describes the security content of Safari 17.4.

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 releases page.

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

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

Safari 17.4

Released March 7, 2024

Safari Private Browsing

Available for: macOS Monterey and macOS Ventura

Impact: Private Browsing tabs may be accessed without authentication

Description: This issue was addressed through improved state management.

CVE-2024-23273: Matej Rabzelj

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: A malicious website may exfiltrate audio data cross-origin

Description: The issue was addressed with improved UI handling.

WebKit Bugzilla: 263795
CVE-2024-23254: James Lee (@Windowsrcer)

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced

Description: A logic issue was addressed with improved validation.

WebKit Bugzilla: 264811
CVE-2024-23263: Johan Carlsson (joaxcar)

WebKit

Available for: macOS Monterey and macOS Ventura

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

Description: An injection issue was addressed with improved validation.

WebKit Bugzilla: 266703
CVE-2024-23280: an anonymous researcher

WebKit

Available for: macOS Monterey and macOS Ventura

Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced

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

WebKit Bugzilla: 267241
CVE-2024-23284: Georg Felber and Marco Squarcina

Additional recognition

Safari

We would like to acknowledge Abhinav Saraswat and Matthew C for their assistance.

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Published Date: March 26, 2024