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 14 December 2020

Audio

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted audio file may disclose restricted memory

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

CVE-2020-29610: Anonymous working with Trend Micro Zero Day Initiative

Entry added 16 March 2021

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: a remote attacker may be able to leak memory

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

CVE-2020-29608: Xingwei Lin of Ant Security Light-Year Lab

Entry added 16 March 2021

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 22 December 2020

ImageIO

Available for: Apple TV 4K and Apple TV HD

Impact: Processing a maliciously crafted image may lead to a denial of service

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

CVE-2020-29615: Xingwei Lin of Ant Security Light-Year Lab

Entry added 16 March 2021

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

Entry updated 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 read was addressed with improved input validation.

CVE-2020-29618: Xingwei Lin of Ant Security Light-Year Lab

Entry updated 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 issue was addressed with improved bounds checking.

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

Entry updated 17 December 2020

Model I/O

Available for: Apple TV 4K and Apple TV HD

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

Description: This issue was addressed with improved checks.

CVE-2020-29614: ZhiWei Sun(@5n1p3r0010) of Topsec Alpha Lab

Entry added 16 March 2021

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

CVE-2020-9972: Aleksandar Nikolic of Cisco Talos

Entry added 16 March 2021

WebKit Storage

Available for: Apple TV 4K and Apple TV HD

Impact: A user may be unable to delete browsing history completely

Description: 'Clear History and Website Data' did not clear the history. The issue was addressed with improved data deletion.

CVE-2020-29623: Simon Hunt of OvalTwo LTD

Entry added 16 March 2021

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

 

Additional recognition

CoreAudio

We would like to acknowledge JunDong Xie and Xingwei Lin of Ant Security Light-Year Lab for their assistance.

Entry added 16 March 2021

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