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 16.4
Released March 27, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.
Description: A memory corruption issue was addressed with improved state management.
WebKit Bugzilla: 251890
CVE-2023-32435: Georgy Kucherin (@kucher1n), Leonid Bezvershenko (@bzvr_), and Boris Larin (@oct0xor) of Kaspersky
Entry added June 21, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing maliciously crafted web content may bypass Same Origin Policy
Description: This issue was addressed with improved state management.
WebKit Bugzilla: 248615
CVE-2023-27932: an anonymous researcher
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: A website may be able to track sensitive user information
Description: The issue was addressed by removing origin information.
WebKit Bugzilla: 250837
CVE-2023-27954: an anonymous researcher
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing a file may lead to a denial-of-service or potentially disclose memory contents
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 249434
CVE-2014-1745: an anonymous researcher
Entry added December 21, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: A use-after-free issue was addressed with improved memory management.
WebKit Bugzilla: 250429
CVE-2023-28198: hazbinhotel working with Trend Micro Zero Day Initiative
Entry added December 21, 2023
WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Content Security Policy to block domains with wildcards may fail
Description: A logic issue was addressed with improved validation.
WebKit Bugzilla: 250709
CVE-2023-32370: Gertjan Franken of imec-DistriNet, KU Leuven
Entry added December 21, 2023
WebKit Web Inspector
Available for: macOS Big Sur and macOS Monterey
Impact: A remote attacker may be able to cause unexpected app termination or arbitrary code execution
Description: This issue was addressed with improved state management.
CVE-2023-28201: Dohyun Lee (@l33d0hyun), crixer (@pwning_me) of SSD Labs
Entry added May 1, 2023
Additional recognition
CFNetwork
We would like to acknowledge an anonymous researcher for their assistance.
WebKit
We would like to acknowledge an anonymous researcher for their assistance.
WebKit Web Inspector
We would like to acknowledge Dohyun Lee (@l33d0hyun) and crixer (@pwning_me) of SSD Labs for their assistance.