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APPLE-SA-2023-07-24-1 Safari 16.6

Safari 16.6 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/kb/HT213847.

Apple maintains a Security Updates page at
https://support.apple.com/HT201222 which lists recent
software updates with security advisories.

WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: A website may be able to bypass Same Origin Policy
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256549
CVE-2023-38572: Narendra Bhati (twitter.com/imnarendrabhati) of Suma
Soft Pvt. Ltd, Pune - India

WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256865
CVE-2023-38594: Yuhao Hu
WebKit Bugzilla: 256573
CVE-2023-38595: an anonymous researcher, Jiming Wang, and Jikai Ren
WebKit Bugzilla: 257387
CVE-2023-38600: Anonymous working with Trend Micro Zero Day Initiative

WebKit
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 258058
CVE-2023-38611: Francisco Alonso (@revskills)

WebKit Process Model
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 258100
CVE-2023-38597: 이준성(Junsung Lee) of Cross Republic

WebKit Web Inspector
Available for: macOS Big Sur and macOS Monterey
Impact: Processing web content may disclose sensitive information
Description: The issue was addressed with improved checks.
WebKit Bugzilla: 256932
CVE-2023-38133: YeongHyeon Choi (@hyeon101010)

Additional recognition

WebRTC
We would like to acknowledge an anonymous researcher for their
assistance.

Safari 16.6 may be obtained from the Mac App Store.
All information is also posted on the Apple Security Updates
web site: https://support.apple.com/en-us/HT201222.

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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