About the security content of tvOS 14.2

This document describes the security content of tvOS 14.2.

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

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tvOS 14.2

Released 5 November 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 16 March 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 16 March 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 sanitisation.

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 16 March 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 16 March 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 16 March 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 15 December 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 16 March 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 15 December 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 16 March 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 15 December 2020

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