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APPLE-SA-03-07-2024-5 watchOS 10.4

watchOS 10.4 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/kb/HT214088.

Apple maintains a Security Releases page at
https://support.apple.com/HT201222 which lists recent
software updates with security advisories.

Accessibility
Available for: Apple Watch Series 4 and later
Impact: A malicious app may be able to observe user data in log entries
related to accessibility notifications
Description: A privacy issue was addressed with improved private data
redaction for log entries.
CVE-2024-23291

AppleMobileFileIntegrity
Available for: Apple Watch Series 4 and later
Impact: An app may be able to elevate privileges
Description: This issue was addressed by removing the vulnerable code.
CVE-2024-23288: Wojciech Regula of SecuRing (wojciechregula.blog) and
Kirin (@Pwnrin)

CoreBluetooth - LE
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access Bluetooth-connected microphones
without user permission
Description: An access issue was addressed with improved access
restrictions.
CVE-2024-23250: Guilherme Rambo of Best Buddy Apps (rambo.codes)

file
Available for: Apple Watch Series 4 and later
Impact: Processing a file may lead to a denial-of-service or potentially
disclose memory contents
Description: This issue was addressed with improved checks.
CVE-2022-48554

ImageIO
Available for: Apple Watch Series 4 and later
Impact: Processing an image may lead to arbitrary code execution
Description: A buffer overflow issue was addressed with improved memory
handling.
CVE-2024-23286: Dohyun Lee (@l33d0hyun)

Kernel
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access user-sensitive data
Description: A race condition was addressed with additional validation.
CVE-2024-23235

Kernel
Available for: Apple Watch Series 4 and later
Impact: An app may be able to cause unexpected system termination or
write kernel memory
Description: A memory corruption vulnerability was addressed with
improved locking.
CVE-2024-23265: Xinru Chi of Pangu Lab

Kernel
Available for: Apple Watch Series 4 and later
Impact: An attacker with arbitrary kernel read and write capability may
be able to bypass kernel memory protections. Apple is aware of a report
that this issue may have been exploited.
Description: A memory corruption issue was addressed with improved
validation.
CVE-2024-23225

libxpc
Available for: Apple Watch Series 4 and later
Impact: An app may be able to break out of its sandbox
Description: The issue was addressed with improved checks.
CVE-2024-23278: an anonymous researcher

libxpc
Available for: Apple Watch Series 4 and later
Impact: An app may be able to execute arbitrary code out of its sandbox
or with certain elevated privileges
Description: The issue was addressed with improved memory handling.
CVE-2024-0258: ali yabuz

MediaRemote
Available for: Apple Watch Series 4 and later
Impact: A malicious application may be able to access private
information
Description: The issue was addressed with improved checks.
CVE-2024-23297: scj643

Messages
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access user-sensitive data
Description: A privacy issue was addressed with improved handling of
temporary files.
CVE-2024-23287: Kirin (@Pwnrin)

RTKit
Available for: Apple Watch Series 4 and later
Impact: An attacker with arbitrary kernel read and write capability may
be able to bypass kernel memory protections. Apple is aware of a report
that this issue may have been exploited.
Description: A memory corruption issue was addressed with improved
validation.
CVE-2024-23296

Sandbox
Available for: Apple Watch Series 4 and later
Impact: An app may be able to leak sensitive user information
Description: A race condition was addressed with improved state
handling.
CVE-2024-23239: Mickey Jin (@patch1t)

Sandbox
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access user-sensitive data
Description: A logic issue was addressed with improved restrictions.
CVE-2024-23290: Wojciech Regula of SecuRing (wojciechregula.blog)

Share Sheet
Available for: Apple Watch Series 4 and later
Impact: An app may be able to access user-sensitive data
Description: A privacy issue was addressed with improved private data
redaction for log entries.
CVE-2024-23231: Kirin (@Pwnrin) and luckyu (@uuulucky)

Siri
Available for: Apple Watch Series 4 and later
Impact: A person with physical access to a device may be able to use
Siri to access private calendar information
Description: A lock screen issue was addressed with improved state
management.
CVE-2024-23289: Lewis Hardy

Siri
Available for: Apple Watch Series 4 and later
Impact: An attacker with physical access may be able to use Siri to
access sensitive user data
Description: This issue was addressed through improved state management.
CVE-2024-23293: Bistrit Dahal

UIKit
Available for: Apple Watch Series 4 and later
Impact: An app may be able to break out of its sandbox
Description: This issue was addressed by removing the vulnerable code.
CVE-2024-23246: Deutsche Telekom Security GmbH sponsored by Bundesamt
für Sicherheit in der Informationstechnik

WebKit
Available for: Apple Watch Series 4 and later
Impact: Processing web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
WebKit Bugzilla: 259694
CVE-2024-23226: Pwn2car

WebKit
Available for: Apple Watch Series 4 and later
Impact: A malicious website may exfiltrate audio data cross-origin
Description: The issue was addressed with improved UI handling.
WebKit Bugzilla: 263795
CVE-2024-23254: James Lee (@Windowsrcer)

WebKit
Available for: Apple Watch Series 4 and later
Impact: Processing maliciously crafted web content may prevent Content
Security Policy from being enforced
Description: A logic issue was addressed with improved validation.
WebKit Bugzilla: 264811
CVE-2024-23263: Johan Carlsson (joaxcar)

WebKit
Available for: Apple Watch Series 4 and later
Impact: A maliciously crafted webpage may be able to fingerprint the
user
Description: An injection issue was addressed with improved validation.
WebKit Bugzilla: 266703
CVE-2024-23280: an anonymous researcher

WebKit
Available for: Apple Watch Series 4 and later
Impact: Processing maliciously crafted web content may prevent Content
Security Policy from being enforced
Description: A logic issue was addressed with improved state management.
WebKit Bugzilla: 267241
CVE-2024-23284: Georg Felber and Marco Squarcina

Additional recognition

CoreAnimation
We would like to acknowledge Junsung Lee for their assistance.

CoreMotion
We would like to acknowledge Eric Dorphy of Twin Cities App Dev LLC for
their assistance.

Find My
We would like to acknowledge Meng Zhang (鲸落) of NorthSea for their
assistance.

Kernel
We would like to acknowledge Tarek Joumaa (@tjkr0wn) for their
assistance.

libxml2
We would like to acknowledge OSS-Fuzz, and Ned Williamson of Google
Project Zero for their assistance.

libxpc
We would like to acknowledge Rasmus Sten, F-Secure (Mastodon:
@pajp () blog dll nu), and an anonymous researcher for their assistance.

Power Management
We would like to acknowledge Pan ZhenPeng (@Peterpan0927) of STAR Labs
SG Pte. Ltd. for their assistance.

Sandbox
We would like to acknowledge Zhongquan Li (@Guluisacat) for their
assistance.

Siri
We would like to acknowledge Bistrit Dahal for their assistance.

Software Update
We would like to acknowledge Bin Zhang of Dublin City University for
their assistance.

WebKit
We would like to acknowledge Nan Wang (@eternalsakura13) of 360
Vulnerability Research Institute, Valentino Dalla Valle, Pedro Bernardo,
Marco Squarcina, and Lorenzo Veronese of TU Wien 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 Releases
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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