About the security content of tvOS 14.3

This document describes the security content of tvOS 14.3.

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tvOS 14.3

Released December 14, 2020

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 issue was addressed with improved bounds checking.

CVE-2020-27948: JunDong Xie of Ant Security Light-Year Lab

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 information disclosure issue was addressed with improved state management.

CVE-2020-27946: Mateusz Jurczyk of Google Project Zero

FontParser

Available for: Apple TV 4K and Apple TV HD

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

Description: A memory corruption issue existed in the processing of font files. This issue was addressed with improved input validation.

CVE-2020-27943: Mateusz Jurczyk of Google Project Zero

CVE-2020-27944: Mateusz Jurczyk of Google Project Zero

CVE-2020-29624: Mateusz Jurczyk of Google Project Zero

Entry updated December 22, 2020

ImageIO

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted image may lead to heap corruption

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

CVE-2020-29617: XingWei Lin of Ant Security Light-Year Lab

CVE-2020-29619: XingWei Lin of Ant Security Light-Year Lab

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-2020-29618: XingWei Lin of Ant Security Light-Year Lab

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 issue was addressed with improved bounds checking.

CVE-2020-29611: Alexandru-Vlad Niculae working with Google Project Zero

Entry updated December 17, 2020

WebRTC

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-2020-15969: an anonymous researcher

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