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APPLE-SA-07-29-2024-1 Safari 17.6

Safari 17.6 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT214121.

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

Safari
Available for: macOS Monterey and macOS Ventura
Impact: Visiting a website that frames malicious content may lead to UI
spoofing
Description: The issue was addressed with improved UI handling.
CVE-2024-40817: Yadhu Krishna M and Narendra Bhati, Manager of Cyber
Security At Suma Soft Pvt. Ltd, Pune (India)

WebKit
Available for: macOS Monterey and macOS Ventura
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: A use-after-free issue was addressed with improved memory
management.
WebKit Bugzilla: 273176
CVE-2024-40776: Huang Xilin of Ant Group Light-Year Security Lab
WebKit Bugzilla: 268770
CVE-2024-40782: Maksymilian Motyl

WebKit
Available for: macOS Monterey and macOS Ventura
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: An out-of-bounds read was addressed with improved bounds
checking.
WebKit Bugzilla: 275431
CVE-2024-40779: Huang Xilin of Ant Group Light-Year Security Lab
WebKit Bugzilla: 275273
CVE-2024-40780: Huang Xilin of Ant Group Light-Year Security Lab

WebKit
Available for: macOS Monterey and macOS Ventura
Impact: Processing maliciously crafted web content may lead to a cross
site scripting attack
Description: This issue was addressed with improved checks.
WebKit Bugzilla: 273805
CVE-2024-40785: Johan Carlsson (joaxcar)

WebKit
Available for: macOS Monterey and macOS Ventura
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: An out-of-bounds access issue was addressed with improved
bounds checking.
CVE-2024-40789: Seunghyun Lee (@0x10n) of KAIST Hacking Lab working with
Trend Micro Zero Day Initiative

WebKit
Available for: macOS Monterey and macOS Ventura
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: This is a vulnerability in open source code and Apple
Software is among the affected projects. The CVE-ID was assigned by a
third party. Learn more about the issue and CVE-ID at cve.org.
WebKit Bugzilla: 274165
CVE-2024-4558

WebKit
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.
WebKit Bugzilla: 275272
CVE-2024-40794: Matthew Butler

Additional recognition

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

Safari 17.6 may be obtained from the Mac App Store.
All information is also posted on the Apple Security Releases
web site: https://support.apple.com/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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