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APPLE-SA-10-25-2023-7 tvOS 17.1

tvOS 17.1 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/kb/HT213987.

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

mDNSResponder
Available for: Apple TV HD and Apple TV 4K (all models)
Impact: A device may be passively tracked by its Wi-Fi MAC address
Description: This issue was addressed by removing the vulnerable code.
CVE-2023-42846: Talal Haj Bakry and Tommy Mysk of Mysk Inc. @mysk_co

WebKit
Available for: Apple TV HD and Apple TV 4K (all models)
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 259836
CVE-2023-40447: 이준성(Junsung Lee) of Cross Republic

WebKit
Available for: Apple TV HD and Apple TV 4K (all models)
Impact: Processing web content may lead to arbitrary code execution
Description: A use-after-free issue was addressed with improved memory
management.
WebKit Bugzilla: 259890
CVE-2023-41976: 이준성(Junsung Lee)

WebKit
Available for: Apple TV HD and Apple TV 4K (all models)
Impact: Processing web content may lead to arbitrary code execution
Description: A logic issue was addressed with improved checks.
WebKit Bugzilla: 260173
CVE-2023-42852: an anonymous researcher

Additional recognition

VoiceOver
We would like to acknowledge Abhay Kailasia (@abhay_kailasia) of Lakshmi
Narain College Of Technology Bhopal India for their assistance.

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

Apple TV will periodically check for software updates. Alternatively,
you may manually check for software updates by selecting "Settings ->
System -> Software Update -> Update Software."  To check the current
version of software, select "Settings -> General -> About."
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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