
===================================================================                                 CERT-Renater

                      Note d'Information No. 2022/VULN259

_____________________________________________________________________

DATE                : 22/07/2022

HARDWARE PLATFORM(S): Apple TV

OPERATING SYSTEM(S): tvOS

====================================================================https://support.apple.com/fr-fr/HT213342
_____________________________________________________________________

Released July 20, 2022

APFS

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app with root privileges may be able to execute arbitrary
code with kernel privileges

Description: The issue was addressed with improved memory handling.

CVE-2022-32832: Tommy Muir (@Muirey03)

AppleAVD

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: A remote user may be able to cause kernel code execution

Description: A buffer overflow issue was addressed with improved bounds
checking.

CVE-2022-32788: Natalie Silvanovich of Google Project Zero

AppleAVD

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to disclose kernel memory

Description: The issue was addressed with improved memory handling.

CVE-2022-32824: Antonio Zekic (@antoniozekic) and John Aakerblom
(@jaakerblom)

AppleMobileFileIntegrity

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to gain root privileges

Description: An authorization issue was addressed with improved state
management.

CVE-2022-32826: Mickey Jin (@patch1t) of Trend Micro

Audio

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to execute arbitrary code with kernel privileges

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

CVE-2022-32820: an anonymous researcher

Audio

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to disclose kernel memory

Description: The issue was addressed with improved memory handling.

CVE-2022-32825: John Aakerblom (@jaakerblom)

CoreMedia

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to disclose kernel memory

Description: The issue was addressed with improved memory handling.

CVE-2022-32828: Antonio Zekic (@antoniozekic) and John Aakerblom
(@jaakerblom)

CoreText

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: A remote user may cause an unexpected app termination or
arbitrary code execution

Description: The issue was addressed with improved bounds checks.

CVE-2022-32839: STAR Labs (@starlabs_sg)

File System Events

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to gain root privileges

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

CVE-2022-32819: Joshua Mason of Mandiant

GPU Drivers

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to disclose kernel memory

Description: Multiple out-of-bounds write issues were addressed with
improved bounds checking.

CVE-2022-32793: an anonymous researcher

GPU Drivers

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed with improved
validation.

CVE-2022-32821: John Aakerblom (@jaakerblom)

iCloud Photo Library

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to access sensitive user information

Description: An information disclosure issue was addressed by removing
the vulnerable code.

CVE-2022-32849: Joshua Jones

ICU

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

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

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

CVE-2022-32787: Dohyun Lee (@l33d0hyun) of SSD Secure Disclosure Labs &
DNSLab, Korea Univ.

ImageIO

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: Processing a maliciously crafted image may result in disclosure
of process memory

Description: The issue was addressed with improved memory handling.

CVE-2022-32841: hjy79425575

ImageIO

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

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

Description: A logic issue was addressed with improved checks.

CVE-2022-32802: Ivan Fratric of Google Project Zero, Mickey Jin (@patch1t)

ImageIO

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: Processing a maliciously crafted image may lead to disclosure of
user information

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

CVE-2022-32830: Ye Zhang (@co0py_Cat) of Baidu Security

Kernel

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app with root privileges may be able to execute arbitrary
code with kernel privileges

Description: The issue was addressed with improved memory handling.

CVE-2022-32813: Xinru Chi of Pangu Lab

CVE-2022-32815: Xinru Chi of Pangu Lab

Kernel

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to disclose kernel memory

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

CVE-2022-32817: Xinru Chi of Pangu Lab

Kernel

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app with arbitrary kernel read and write capability may be
able to bypass Pointer Authentication

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

CVE-2022-32844: Sreejith Krishnan R (@skr0x1c0)

Liblouis

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may cause unexpected app termination or arbitrary code
execution

Description: This issue was addressed with improved checks.

CVE-2022-26981: Hexhive (hexhive.epfl.ch), NCNIPC of China (nipc.org.cn)

libxml2

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to leak sensitive user information

Description: A memory initialization issue was addressed with improved
memory handling.

CVE-2022-32823

Multi-Touch

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to execute arbitrary code with kernel privileges

Description: A type confusion issue was addressed with improved checks.

CVE-2022-32814: Pan ZhenPeng (@Peterpan0927)

Software Update

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: A user in a privileged network position can track a user’s activity

Description: This issue was addressed by using HTTPS when sending
information over the network.

CVE-2022-32857: Jeffrey Paul (sneak.berlin)

WebKit

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: Visiting a website that frames malicious content may lead to UI
spoofing

Description: The issue was addressed with improved UI handling.

WebKit Bugzilla: 239316
CVE-2022-32816: Dohyun Lee (@l33d0hyun) of SSD Secure Disclosure Labs &
DNSLab, Korea Univ.

WebKit

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

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

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

WebKit Bugzilla: 240720
CVE-2022-32792: Manfred Paul (@_manfp) working with Trend Micro Zero Day
Initiative

Wi-Fi

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: An app may be able to cause unexpected system termination or
write kernel memory

Description: This issue was addressed with improved checks.

CVE-2022-32837: Wang Yu of Cyberserval

Wi-Fi

Available for: Apple TV 4K, Apple TV 4K (2nd generation), and Apple TV HD

Impact: A remote user may be able to cause unexpected system termination
or corrupt kernel memory

Description: This issue was addressed with improved checks.

CVE-2022-32847: Wang Yu of Cyberserval



Additional recognition
802.1X

We would like to acknowledge Shin Sun of National Taiwan University for
their assistance.

AppleMobileFileIntegrity

We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive
Security, Mickey Jin (@patch1t) of Trend Micro, and Wojciech Reguła
(@_r3ggi) of SecuRing for their assistance.

configd

We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive
Security, Mickey Jin (@patch1t) of Trend Micro, and Wojciech Reguła
(@_r3ggi) of SecuRing for their assistance.

Information about products not manufactured by Apple, or independent
websites not controlled or tested by Apple, is provided without
recommendation or endorsement. Apple assumes no responsibility with
regard to the selection, performance, or use of third-party websites or
products. Apple makes no representations regarding third-party website
accuracy or reliability. Contact the vendor for additional information.

Date de publication: 20 juillet 2022

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