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APPLE-SA-2022-10-24-5 watchOS 9.1

watchOS 9.1 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT213491.

AppleMobileFileIntegrity
Available for: Apple Watch Series 4 and later
Impact: An app may be able to modify protected parts of the file
system
Description: This issue was addressed by removing additional
entitlements.
CVE-2022-42825: Mickey Jin (@patch1t)

AVEVideoEncoder
Available for: Apple Watch Series 4 and later
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved bounds checks.
CVE-2022-32940: ABC Research s.r.o.

CFNetwork
Available for: Apple Watch Series 4 and later
Impact: Processing a maliciously crafted certificate may lead to
arbitrary code execution
Description: A certificate validation issue existed in the handling
of WKWebView. This issue was addressed with improved validation.
CVE-2022-42813: Jonathan Zhang of Open Computing Facility
(ocf.berkeley.edu)

GPU Drivers
Available for: Apple Watch Series 4 and later
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved memory handling.
CVE-2022-32947: Asahi Lina (@LinaAsahi)

Kernel
Available for: Apple Watch Series 4 and later
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved memory handling.
CVE-2022-32924: Ian Beer of Google Project Zero

Kernel
Available for: Apple Watch Series 4 and later
Impact: A remote user may be able to cause kernel code execution
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2022-42808: Zweig of Kunlun Lab

Sandbox
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access user-sensitive data
Description: An access issue was addressed with additional sandbox
restrictions.
CVE-2022-42811: Justin Bui (@slyd0g) of Snowflake

WebKit
Available for: Apple Watch Series 4 and later
Impact: Visiting a malicious website may lead to user interface
spoofing
Description: The issue was addressed with improved UI handling.
WebKit Bugzilla: 243693
CVE-2022-42799: Jihwan Kim (@gPayl0ad), Dohyun Lee (@l33d0hyun)

WebKit
Available for: Apple Watch Series 4 and later
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: A type confusion issue was addressed with improved
memory handling.
WebKit Bugzilla: 244622
CVE-2022-42823: Dohyun Lee (@l33d0hyun) of SSD Labs

WebKit
Available for: Apple Watch Series 4 and later
Impact: Processing maliciously crafted web content may disclose
sensitive user information
Description: A logic issue was addressed with improved state
management.
WebKit Bugzilla: 245058
CVE-2022-42824: Abdulrahman Alqabandi of Microsoft Browser
Vulnerability Research, Ryan Shin of IAAI SecLab at Korea University,
Dohyun Lee (@l33d0hyun) of DNSLab at Korea University

Additional recognition

iCloud
We would like to acknowledge Tim Michaud (@TimGMichaud) of
Moveworks.ai for their assistance.

Kernel
We would like to acknowledge Peter Nguyen of STAR Labs, Tim Michaud
(@TimGMichaud) of Moveworks.ai, Tommy Muir (@Muirey03) for their
assistance.

WebKit
We would like to acknowledge Maddie Stone of Google Project Zero,
Narendra Bhati (@imnarendrabhati) of Suma Soft Pvt. Ltd., an
anonymous researcher for their assistance.

Instructions on how to update your Apple Watch software are available
at https://support.apple.com/kb/HT204641  To check the version on
your Apple Watch, open the Apple Watch app on your iPhone and select
"My Watch > General > About".  Alternatively, on your watch, select
"My Watch > 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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