# About the security content of tvOS 16.3\[2023-01/1]

## About the security content of tvOS 16.3 <a href="#howto-title" id="howto-title"></a>

This document describes the security content of tvOS 16.3.

### 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](https://support.apple.com/kb/HT201222) page.

Apple security documents reference vulnerabilities by [CVE-ID](http://cve.mitre.org/about/) when possible.

For more information about security, see the [Apple Product Security](https://support.apple.com/kb/HT201220) page.

## tvOS 16.3

Released January 24, 2023

### **AppleMobileFileIntegrity**

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

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

Description: This issue was addressed by enabling hardened runtime.

CVE-2023-23499: Wojciech Reguła (@\_r3ggi) of SecuRing (wojciechregula.blog)

### **ImageIO**

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

Impact: Processing an image may lead to a denial-of-service

Description: A memory corruption issue was addressed with improved state management.

CVE-2023-23519: Yiğit Can YILMAZ (@yilmazcanyigit)

### **Kernel**

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

Impact: An app may be able to leak sensitive kernel state

Description: The issue was addressed with improved memory handling.

CVE-2023-23500: Pan ZhenPeng (@Peterpan0927) of STAR Labs SG Pte. Ltd. (@starlabs\_sg)

### **Kernel**

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

Impact: An app may be able to determine kernel memory layout

Description: An information disclosure issue was addressed by removing the vulnerable code.

CVE-2023-23502: Pan ZhenPeng (@Peterpan0927) of STAR Labs SG Pte. Ltd. (@starlabs\_sg)

### **Kernel**

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

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

Description: The issue was addressed with improved memory handling.

CVE-2023-23504: Adam Doupé of ASU SEFCOM

### **Maps**

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

Impact: An app may be able to bypass Privacy preferences

Description: A logic issue was addressed with improved state management.

CVE-2023-23503: an anonymous researcher

### **Safari**

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

Impact: Visiting a website may lead to an app denial-of-service

Description: The issue was addressed with improved handling of caches.

CVE-2023-23512: Adriatik Raci

### **Weather**

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

Impact: An app may be able to bypass Privacy preferences

Description: The issue was addressed with improved memory handling.

CVE-2023-23511: Wojciech Regula of SecuRing (wojciechregula.blog), an anonymous researcher

### **WebKit**

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

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: The issue was addressed with improved checks.

WebKit Bugzilla: 245464\
CVE-2023-23496: ChengGang Wu, Yan Kang, YuHao Hu, Yue Sun, Jiming Wang, JiKai Ren and Hang Shu of Institute of Computing Technology, Chinese Academy of Sciences

### **WebKit**

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

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: The issue was addressed with improved memory handling.

WebKit Bugzilla: 248268\
CVE-2023-23518: YeongHyeon Choi (@hyeon101010), Hyeon Park (@tree\_segment), SeOk JEON (@\_seokjeon), YoungSung Ahn (@\_ZeroSung), JunSeo Bae (@snakebjs0107), Dohyun Lee (@l33d0hyun) of Team ApplePIE

WebKit Bugzilla: 248268\
CVE-2023-23517: YeongHyeon Choi (@hyeon101010), Hyeon Park (@tree\_segment), SeOk JEON (@\_seokjeon), YoungSung Ahn (@\_ZeroSung), JunSeo Bae (@snakebjs0107), Dohyun Lee (@l33d0hyun) of Team ApplePIE

## Additional recognition

### **Kernel**

We would like to acknowledge Nick Stenning of Replicate for their assistance.

### **WebKit**

We would like to acknowledge Eliya Stein of Confiant for their assistance.

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