About the security content of tvOS 13.2

This document describes the security content of tvOS 13.2.

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 page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

tvOS 13.2

Accounts

Available for: Apple TV 4K and Apple TV HD

Impact: A remote attacker may be able to leak memory

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2019-8787: Steffen Klee of Secure Mobile Networking Lab at Technische Universität Darmstadt

App Store

Available for: Apple TV 4K and Apple TV HD

Impact: A local attacker may be able to login to the account of a previously logged in user without valid credentials.

Description: An authentication issue was addressed with improved state management.

CVE-2019-8803: Kiyeon An, 차민규 (CHA Minkyu)

Audio

Available for: Apple TV 4K and Apple TV HD

Impact: An application may be able to execute arbitrary code with system privileges

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8785: Ian Beer of Google Project Zero

CVE-2019-8797: 08Tc3wBB working with SSD Secure Disclosure

AVEVideoEncoder

Available for: Apple TV 4K and Apple TV HD

Impact: An application may be able to execute arbitrary code with system privileges

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8795: 08Tc3wBB working with SSD Secure Disclosure

File System Events

Available for: Apple TV 4K and Apple TV HD

Impact: An application may be able to execute arbitrary code with system privileges

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8798: ABC Research s.r.o. working with Trend Micro's Zero Day Initiative

Kernel

Available for: Apple TV 4K and Apple TV HD

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2019-8794: 08Tc3wBB working with SSD Secure Disclosure

Kernel

Available for: Apple TV 4K and Apple TV HD

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

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8786: Wen Xu of Georgia Tech, Microsoft Offensive Security Research Intern

Kernel

Available for: Apple TV 4K and Apple TV HD

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

Description: A memory corruption vulnerability was addressed with improved locking.

CVE-2019-8829: Jann Horn of Google Project Zero

WebKit

Available for: Apple TV 4K and Apple TV HD

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

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

CVE-2019-8813: an anonymous researcher

WebKit

Available for: Apple TV 4K and Apple TV HD

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

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2019-8782: Cheolung Lee of LINE+ Security Team

CVE-2019-8783: Cheolung Lee of LINE+ Graylab Security Team

CVE-2019-8808: found by OSS-Fuzz

CVE-2019-8811: Soyeon Park of SSLab at Georgia Tech

CVE-2019-8812: JunDong Xie of Ant-financial Light-Year Security Lab

CVE-2019-8814: Cheolung Lee of LINE+ Security Team

CVE-2019-8816: Soyeon Park of SSLab at Georgia Tech

CVE-2019-8819: Cheolung Lee of LINE+ Security Team

CVE-2019-8820: Samuel Groß of Google Project Zero

CVE-2019-8821: Sergei Glazunov of Google Project Zero

CVE-2019-8822: Sergei Glazunov of Google Project Zero

CVE-2019-8823: Sergei Glazunov of Google Project Zero

WebKit

Available for: Apple TV 4K and Apple TV HD

Impact: Visiting a maliciously crafted website may reveal the sites a user has visited

Description: The HTTP referrer header may be used to leak browsing history. The issue was resolved by downgrading all third party referrers to their origin.

CVE-2019-8827: Artur Janc, Krzysztof Kotowicz, Lukas Weichselbaum, and Roberto Clapis of Google Security Team

WebKit Process Model

Available for: Apple TV 4K and Apple TV HD

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

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2019-8815: Apple

Additional recognition

CFNetwork

We would like to acknowledge Lily Chen of Google for their assistance.

Kernel

We would like to acknowledge Daniel Roethlisberger of Swisscom CSIRT, Jann Horn of Google Project Zero for their assistance.

WebKit

We would like to acknowledge Dlive of Tencent's Xuanwu Lab and Zhiyi Zhang of Codesafe Team of Legendsec at Qi'anxin Group for their assistance.