About the security content of tvOS 16.6

This document describes the security content of tvOS 16.6.

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 16.6

Released July 24, 2023

Kernel

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

Impact: A remote user may be able to cause unexpected system termination or corrupt kernel memory

Description: A buffer overflow issue was addressed with improved memory handling.

CVE-2023-38590: Zweig of Kunlun Lab

Entry added July 27, 2023

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: A use-after-free issue was addressed with improved memory management.

CVE-2023-38598: Mohamed GHANNAM (@_simo36)

Entry added July 27, 2023

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: An integer overflow was addressed with improved input validation.

CVE-2023-36495: 香农的三蹦子 of Pangu Lab

Entry added July 27, 2023

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: An out-of-bounds write issue was addressed with improved input validation.

CVE-2023-38604: an anonymous researcher

Entry added July 27, 2023

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-2023-32734: Pan ZhenPeng (@Peterpan0927) of STAR Labs SG Pte. Ltd.

CVE-2023-32441: Peter Nguyễn Vũ Hoàng (@peternguyen14) of STAR Labs SG Pte. Ltd.

Kernel

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

Impact: An app may be able to modify sensitive kernel state. Apple is aware of a report that this issue may have been actively exploited against versions of iOS released before iOS 15.7.1.

Description: This issue was addressed with improved state management.

CVE-2023-38606: Valentin Pashkov, Mikhail Vinogradov, Georgy Kucherin (@kucher1n), Leonid Bezvershenko (@bzvr_), and Boris Larin (@oct0xor) of Kaspersky

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: A use-after-free issue was addressed with improved memory management.

CVE-2023-32381: an anonymous researcher

CVE-2023-32433: Zweig of Kunlun Lab

CVE-2023-35993: Kaitao Xie and Xiaolong Bai of Alibaba Group

libxpc

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

Impact: An app may be able to cause a denial-of-service

Description: A logic issue was addressed with improved checks.

CVE-2023-38593: Noah Roskin-Frazee

Entry added July 27, 2023

libxpc

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

Impact: An app may be able to gain root privileges

Description: A path handling issue was addressed with improved validation.

CVE-2023-38565: Zhipeng Huo (@R3dF09) of Tencent Security Xuanwu Lab (xlab.tencent.com)

Entry added July 27, 2023

WebKit

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

Impact: A website may be able to track sensitive user information

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

WebKit Bugzilla: 257822

CVE-2023-38599: Hritvik Taneja, Jason Kim, Jie Jeff Xu, Stephan van Schaik, Daniel Genkin, and Yuval Yarom

Entry added July 27, 2023

WebKit

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

Impact: Processing a document may lead to a cross site scripting attack

Description: This issue was addressed with improved checks.

WebKit Bugzilla: 257299

CVE-2023-32445: Johan Carlsson (joaxcar)

Entry added July 27, 2023

WebKit

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

Impact: Processing web content may lead to arbitrary code execution

Description: A logic issue was addressed with improved restrictions.

WebKit Bugzilla: 257331

CVE-2023-38592: Narendra Bhati (twitter.com/imnarendrabhati) of Suma Soft Pvt. Ltd, Pune - India, Valentino Dalla Valle, Pedro Bernardo, Marco Squarcina, and Lorenzo Veronese of TU Wien

Entry added July 27, 2023

WebKit

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

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

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

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

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

Impact: Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Description: The issue was addressed with improved checks.

WebKit Bugzilla: 259231

CVE-2023-37450: an anonymous researcher

WebKit

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

Impact: Processing web content may lead to arbitrary code execution

Description: The issue was addressed with improved memory handling.

WebKit Bugzilla: 257684

CVE-2023-42866: Francisco Alonso (@revskills) and Junsung Lee

Entry added December 21, 2023

WebKit Web Inspector

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

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

WebKit

We would like to acknowledge Narendra Bhati (twitter.com/imnarendrabhati) of Suma Soft Pvt. Ltd, Pune - India for their assistance.

Entry added July 27, 2023

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