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APPLE-SA-2022-12-13-7 tvOS 16.2

tvOS 16.2 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT213535.

Accounts
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: A user may be able to view sensitive user information
Description: This issue was addressed with improved data protection.
CVE-2022-42843: Mickey Jin (@patch1t)

AppleAVD
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Parsing a maliciously crafted video file may lead to kernel
code execution
Description: An out-of-bounds write issue was addressed with improved
input validation.
CVE-2022-46694: Andrey Labunets and Nikita Tarakanov

AppleMobileFileIntegrity
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to bypass Privacy preferences
Description: This issue was addressed by enabling hardened runtime.
CVE-2022-42865: Wojciech Reguła (@_r3ggi) of SecuRing

AVEVideoEncoder
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: A logic issue was addressed with improved checks.
CVE-2022-42848: ABC Research s.r.o

ImageIO
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing a maliciously crafted file may lead to arbitrary
code execution
Description: An out-of-bounds write issue was addressed with improved
input validation.
CVE-2022-46693: Mickey Jin (@patch1t)

ImageIO
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Parsing a maliciously crafted TIFF file may lead to
disclosure of user information
Description: The issue was addressed with improved memory handling.
CVE-2022-42851: Mickey Jin (@patch1t)

IOHIDFamily
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: A race condition was addressed with improved state
handling.
CVE-2022-42864: Tommy Muir (@Muirey03)

IOMobileFrameBuffer
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
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-2022-46690: John Aakerblom (@jaakerblom)

Kernel
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: A race condition was addressed with additional
validation.
CVE-2022-46689: Ian Beer of Google Project Zero

Kernel
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Connecting to a malicious NFS server may lead to arbitrary
code execution with kernel privileges
Description: The issue was addressed with improved bounds checks.
CVE-2022-46701: Felix Poulin-Belanger

Kernel
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: A remote user may be able to cause kernel code execution
Description: The issue was addressed with improved memory handling.
CVE-2022-42842: pattern-f (@pattern_F_) of Ant Security Light-Year
Lab

Kernel
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
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-2022-42845: Adam Doupé of ASU SEFCOM

libxml2
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: A remote user may be able to cause unexpected app termination
or arbitrary code execution
Description: An integer overflow was addressed through improved input
validation.
CVE-2022-40303: Maddie Stone of Google Project Zero

libxml2
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: A remote user may be able to cause unexpected app termination
or arbitrary code execution
Description: This issue was addressed with improved checks.
CVE-2022-40304: Ned Williamson and Nathan Wachholz of Google Project
Zero

Preferences
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to use arbitrary entitlements
Description: A logic issue was addressed with improved state
management.
CVE-2022-42855: Ivan Fratric of Google Project Zero

Safari
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Visiting a website that frames malicious content may lead to
UI spoofing
Description: A spoofing issue existed in the handling of URLs. This
issue was addressed with improved input validation.
CVE-2022-46695: KirtiKumar Anandrao Ramchandani

Software Update
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: A user may be able to elevate privileges
Description: An access issue existed with privileged API calls. This
issue was addressed with additional restrictions.
CVE-2022-42849: Mickey Jin (@patch1t)

Weather
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: An app may be able to read sensitive location information
Description: The issue was addressed with improved handling of
caches.
CVE-2022-42866: an anonymous researcher

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
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.
WebKit Bugzilla: 245521
CVE-2022-42867: Maddie Stone of Google Project Zero

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory consumption issue was addressed with improved
memory handling.
WebKit Bugzilla: 245466
CVE-2022-46691: an anonymous researcher

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may bypass Same
Origin Policy
Description: A logic issue was addressed with improved state
management.
WebKit Bugzilla: 246783
CVE-2022-46692: KirtiKumar Anandrao Ramchandani

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may result in the
disclosure of process memory
Description: The issue was addressed with improved memory handling.
CVE-2022-42852: hazbinhotel working with Trend Micro Zero Day
Initiative

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
input validation.
WebKit Bugzilla: 246942
CVE-2022-46696: Samuel Groß of Google V8 Security
WebKit Bugzilla: 247562
CVE-2022-46700: Samuel Groß of Google V8 Security

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may disclose
sensitive user information
Description: A logic issue was addressed with improved checks.
CVE-2022-46698: Dohyun Lee (@l33d0hyun) of SSD Secure Disclosure Labs
& DNSLab, Korea Univ.

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A memory corruption issue was addressed with improved
state management.
WebKit Bugzilla: 247420
CVE-2022-46699: Samuel Groß of Google V8 Security
WebKit Bugzilla: 244622
CVE-2022-42863: an anonymous researcher

WebKit
Available for: Apple TV 4K, Apple TV 4K (2nd generation and later),
and Apple TV HD
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution. Apple is aware of a report that this issue
may have been actively exploited against versions of iOS released
before iOS 15.1.
Description: A type confusion issue was addressed with improved state
handling.
WebKit Bugzilla: 248266
CVE-2022-42856: Clément Lecigne of Google's Threat Analysis Group

Additional recognition

Kernel
We would like to acknowledge Zweig of Kunlun Lab for their
assistance.

Safari Extensions
We would like to acknowledge Oliver Dunk and Christian R. of
1Password for their assistance.

WebKit
We would like to acknowledge an anonymous researcher and scarlet for
their assistance.

Apple TV will periodically check for software updates. Alternatively,
you may manually check for software updates by selecting "Settings ->
System -> Software Update -> Update Software."  To check the current
version of software, select "Settings -> General -> About."
All information is also posted on the Apple Security Updates
web site: https://support.apple.com/en-us/HT201222.

This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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