About the security content of tvOS 17.1

This document describes the security content of tvOS 17.1.

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.

tvOS 17.1

Core Recents

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: An app may be able to access user-sensitive data

Description: The issue was resolved by sanitizing logging

CVE-2023-42823

Game Center

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: An app may be able to access sensitive user data

Description: A permissions issue was addressed with additional restrictions.

CVE-2023-42953: Michael (Biscuit) Thomas - @biscuit@social.lol

ImageIO

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: Processing a maliciously crafted image may lead to heap corruption

Description: The issue was addressed with improved bounds checks.

CVE-2023-42848: JZ

libxpc

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: A malicious app may be able to gain root privileges

Description: This issue was addressed with improved handling of symlinks.

CVE-2023-42942: Mickey Jin (@patch1t)

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

Pro Res

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: An app may be able to execute arbitrary code with kernel privileges

Description: The issue was addressed with improved bounds checks.

CVE-2023-42873: Mingxuan Yang (@PPPF00L), and happybabywu and Guang Gong of 360 Vulnerability Research Institute

Sandbox

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: An app may be able to access sensitive user data

Description: This issue was addressed with improved state management.

CVE-2023-42839: Yiğit Can YILMAZ (@yilmazcanyigit)

Siri

Available for: Apple TV HD and Apple TV 4K (all models)

Impact: An app may be able to leak sensitive user information

Description: This issue was addressed with improved redaction of sensitive information.

CVE-2023-42946

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.

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.

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.

CVE-2023-42852: Pedro Ribeiro (@pedrib1337) and Vitor Pedreira (@0xvhp_) of Agile Information Security

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.