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HistoryDec 13, 2021 - 12:00 a.m.

About the security content of tvOS 15.2

2021-12-1300:00:00
support.apple.com
9

8.5 High

AI Score

Confidence

High

0.007 Low

EPSS

Percentile

79.7%

About the security content of tvOS 15.2

This document describes the security content of tvOS 15.2.

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 15.2

Released December 13, 2021

Audio

Available for: Apple TV 4K and Apple TV HD

Impact: Parsing a maliciously crafted audio file may lead to disclosure of user information

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

CVE-2021-30960: JunDong Xie of Ant Security Light-Year Lab

CFNetwork Proxies

Available for: Apple TV 4K and Apple TV HD

Impact: User traffic might unexpectedly be leaked to a proxy server despite PAC configurations

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

CVE-2021-30966: Michal Rajcan of Jamf, Matt Vlasach of Jamf (Wandera)

ColorSync

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted image may lead to arbitrary code execution

Description: A memory corruption issue in the processing of ICC profiles was addressed with improved input validation.

CVE-2021-30926: Jeremy Brown

CVE-2021-30942: Mateusz Jurczyk of Google Project Zero

CoreAudio

Available for: Apple TV 4K and Apple TV HD

Impact: Parsing a maliciously crafted audio file may lead to disclosure of user information

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

CVE-2021-30962: JunDong Xie of Ant Security Light-Year Lab

Entry added May 25, 2022

CoreAudio

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution

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

CVE-2021-30957: JunDong Xie of Ant Security Light-Year Lab

Entry updated May 25, 2022

CoreAudio

Available for: Apple TV 4K and Apple TV HD

Impact: Playing a malicious audio file may lead to arbitrary code execution

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

CVE-2021-30958: JunDong Xie of Ant Security Light-Year Lab

Crash Reporter

Available for: Apple TV 4K and Apple TV HD

Impact: A local attacker may be able to elevate their privileges

Description: This issue was addressed with improved checks.

CVE-2021-30945: Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com)

FontParser

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted font may result in the disclosure of process memory

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

CVE-2021-31013: Daniel Lim Wee Soong of STAR Labs

Entry added June 7, 2023

Game Center

Available for: Apple TV 4K and Apple TV HD

Impact: A malicious application may be able to read sensitive contact information

Description: A permissions issue was addressed with improved validation.

CVE-2021-31000: Denis Tokarev (@illusionofcha0s)

Entry added May 25, 2022

ImageIO

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted image may lead to arbitrary code execution

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

CVE-2021-30939: Mickey Jin (@patch1t) of Trend Micro, Jaewon Min of Cisco Talos, Rui Yang and Xingwei Lin of Ant Security Light-Year Lab

Entry updated May 25, 2022

Kernel

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30916: Zweig of Kunlun Lab

Kernel

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30937: Sergei Glazunov of Google Project Zero

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 use after free issue was addressed with improved memory management.

CVE-2021-30927: Xinru Chi of Pangu Lab

CVE-2021-30980: Xinru Chi of Pangu Lab

Kernel

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30949: Ian Beer of Google Project Zero

Kernel

Available for: Apple TV 4K and Apple TV HD

Impact: An attacker in a privileged network position may be able to execute arbitrary code

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

CVE-2021-30993: OSS-Fuzz, Ned Williamson of Google Project Zero

Kernel

Available for: Apple TV 4K and Apple TV HD

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

Description: A race condition was addressed with improved state handling.

CVE-2021-30955: Zweig of Kunlun Lab

Preferences

Available for: Apple TV 4K and Apple TV HD

Impact: A malicious application may be able to elevate privileges

Description: A race condition was addressed with improved state handling.

CVE-2021-30995: Mickey Jin (@patch1t) of Trend Micro, Mickey Jin (@patch1t)

Sandbox

Available for: Apple TV 4K and Apple TV HD

Impact: A malicious application may be able to bypass certain Privacy preferences

Description: A validation issue related to hard link behavior was addressed with improved sandbox restrictions.

CVE-2021-30968: Csaba Fitzl (@theevilbit) of Offensive Security

Sandbox

Available for: Apple TV 4K and Apple TV HD

Impact: An application may be able to access a user’s files

Description: An access issue was addressed with additional sandbox restrictions.

CVE-2021-30947: Csaba Fitzl (@theevilbit) of Offensive Security

SQLite

Available for: Apple TV 4K and Apple TV HD

Impact: A malicious app may be able to access data from other apps by enabling additional logging

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

CVE-2021-30944: Wojciech Reguła (@_r3ggi) of SecuRing

Entry added May 25, 2022

WebKit

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30934: Dani Biro

WebKit

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30936: Chijin Zhou of ShuiMuYuLin Ltd and Tsinghua wingtecher lab

CVE-2021-30951: Pangu via Tianfu Cup

Entry updated May 25, 2022

WebKit

Available for: Apple TV 4K and Apple TV HD

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

Description: An integer overflow was addressed with improved input validation.

CVE-2021-30952: @18f and @jq0904 of DBAPP Security‘s weibin lab via Tianfu Cup

Entry updated May 25, 2022

WebKit

Available for: Apple TV 4K and Apple TV HD

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

Description: A race condition was addressed with improved state handling.

CVE-2021-30984: Kunlun Lab via Tianfu Cup

Entry updated May 25, 2022

WebKit

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2021-30953: Jianjun Dai of 360 Vulnerability Research Institute via Tianfu Cup

Entry updated May 25, 2022

WebKit

Available for: Apple TV 4K and Apple TV HD

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

Description: A type confusion issue was addressed with improved memory handling.

CVE-2021-30954: Kunlun Lab via Tianfu Cup

Entry updated May 25, 2022

Additional recognition

Bluetooth

We would like to acknowledge Haram Park, Korea University for their assistance.

ColorSync

We would like to acknowledge Mateusz Jurczyk of Google Project Zero for their assistance.

Contacts

We would like to acknowledge Minchan Park (03stin) for their assistance.

Kernel

We would like to acknowledge Amit Klein of Bar-Ilan University’s Center for Research in Applied Cryptography and Cyber Security for their assistance.

WebKit

We would like to acknowledge Peter Snyder of Brave, and Soroush Karami for their assistance.

Entry updated May 25, 2022

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Published Date: November 23, 2023

CPENameOperatorVersion
tvoslt15.2