About the security content of tvOS 14.2

This document describes the security content of tvOS 14.2.

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 14.2

Released November 5, 2020

Audio

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27910: JunDong Xie and XingWei Lin of Ant Security Light-Year Lab

Audio

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27916: JunDong Xie of Ant Security Light-Year Lab

CoreAudio

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-10017: Francis working with Trend Micro Zero Day Initiative, JunDong Xie of Ant Security Light-Year Lab

CoreAudio

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27908: Anonymous working with Trend Micro Zero Day Initiative, JunDong Xie and Xingwei Lin of Ant Security Light-Year Lab

CVE-2020-27909: Anonymous working with Trend Micro Zero Day Initiative, JunDong Xie and Xingwei Lin of Ant Security Light-Year Lab

Entry updated March 16, 2021

CoreText

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27922: Mickey Jin of Trend Micro

Entry added March 16, 2021

Crash Reporter

Available for: Apple TV 4K and Apple TV HD

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

Description: An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization.

CVE-2020-10003: Tim Michaud (@TimGMichaud) of Leviathan

FontParser

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27927: Xingwei Lin of Ant Security Light-Year Lab

Foundation

Available for: Apple TV 4K and Apple TV HD

Impact: A local user may be able to read arbitrary files

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

CVE-2020-10002: James Hutchins

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 input validation.

CVE-2020-27924: Lei Sun

Entry added March 16, 2021

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 write was addressed with improved input validation.

CVE-2020-27912: Xingwei Lin of Ant Security Light-Year Lab

CVE-2020-27923: Lei Sun

Entry updated March 16, 2021

IOAcceleratorFamily

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27905: Mohamed Ghannam (@_simo36)

Kernel

Available for: Apple TV 4K and Apple TV HD

Impact: A malicious application may be able to determine kernel memory layout

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

CVE-2020-9974: Tommy Muir (@Muirey03)

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 state management.

CVE-2020-10016: Alex Helie

libxml2

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27917: found by OSS-Fuzz

CVE-2020-27920: found by OSS-Fuzz

Entry updated March 16, 2021

libxml2

Available for: Apple TV 4K and Apple TV HD

Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution

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

CVE-2020-27911: found by OSS-Fuzz

Logging

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-10010: Tommy Muir (@Muirey03)

Model I/O

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution

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

CVE-2020-10011: Aleksandar Nikolic of Cisco Talos

Entry added December 15, 2020

Model I/O

Available for: Apple TV 4K and Apple TV HD

Impact: Opening a maliciously crafted file may lead to unexpected application termination or arbitrary code execution

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

CVE-2020-10004: Aleksandar Nikolic of Cisco Talos

Entry added March 16, 2021

Symptom Framework

Available for: Apple TV 4K and Apple TV HD

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

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

CVE-2020-27899: 08Tc3wBB working with ZecOps

Entry added December 15, 2020

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-2020-27918: Liu Long of Ant Security Light-Year Lab

Entry updated March 16, 2021

XNU

Available for: Apple TV 4K and Apple TV HD

Impact: A sandboxed process may be able to circumvent sandbox restrictions

Description: Multiple issues were addressed with improved logic.

CVE-2020-27935: Lior Halphon (@LIJI32)

Entry added December 15, 2020

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