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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