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APPLE-SA-07-29-2024-2 iOS 17.6 and iPadOS 17.6

iOS 17.6 and iPadOS 17.6 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT214117.

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

AppleMobileFileIntegrity
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to bypass Privacy preferences
Description: A downgrade issue was addressed with additional code-
signing restrictions.
CVE-2024-40774: Mickey Jin (@patch1t)

CoreGraphics
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing a maliciously crafted file may lead to unexpected app
termination
Description: An out-of-bounds read issue was addressed with improved
input validation.
CVE-2024-40799: D4m0n

CoreMedia
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing a maliciously crafted video file may lead to
unexpected app termination
Description: An out-of-bounds write issue was addressed with improved
input validation.
CVE-2024-27873: Amir Bazine and Karsten König of CrowdStrike Counter
Adversary Operations

dyld
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A malicious attacker with arbitrary read and write capability
may be able to bypass Pointer Authentication
Description: A race condition was addressed with additional validation.
CVE-2024-40815: w0wbox

Family Sharing
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to read sensitive location information
Description: This issue was addressed with improved data protection.
CVE-2024-40795: Csaba Fitzl (@theevilbit) of Kandji

ImageIO
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing an image may lead to a denial-of-service
Description: This is a vulnerability in open source code and Apple
Software is among the affected projects. The CVE-ID was assigned by a
third party. Learn more about the issue and CVE-ID at cve.org.
CVE-2023-6277
CVE-2023-52356

ImageIO
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing a maliciously crafted file may lead to unexpected app
termination
Description: An out-of-bounds read issue was addressed with improved
input validation.
CVE-2024-40806: Yisumi

ImageIO
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing a maliciously crafted file may lead to unexpected app
termination
Description: An out-of-bounds access issue was addressed with improved
bounds checking.
CVE-2024-40777: Junsung Lee working with Trend Micro Zero Day
Initiative, and Amir Bazine and Karsten König of CrowdStrike Counter
Adversary Operations

ImageIO
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing a maliciously crafted file may lead to unexpected app
termination
Description: An integer overflow was addressed with improved input
validation.
CVE-2024-40784: Junsung Lee working with Trend Micro Zero Day
Initiative, Gandalf4a

Kernel
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A local attacker may be able to determine kernel memory layout
Description: An information disclosure issue was addressed with improved
private data redaction for log entries.
CVE-2024-27863: CertiK SkyFall Team

Kernel
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A local attacker may be able to cause unexpected system shutdown
Description: A type confusion issue was addressed with improved memory
handling.
CVE-2024-40788: Minghao Lin and Jiaxun Zhu from Zhejiang University

libxpc
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to bypass Privacy preferences
Description: A permissions issue was addressed with additional
restrictions.
CVE-2024-40805

Phone
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An attacker with physical access may be able to use Siri to
access sensitive user data
Description: A lock screen issue was addressed with improved state
management.
CVE-2024-40813: Jacob Braun

Photos Storage
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Photos in the Hidden Photos Album may be viewed without
authentication
Description: An authentication issue was addressed with improved state
management.
CVE-2024-40778: Mateen Alinaghi

Sandbox
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to bypass Privacy preferences
Description: This issue was addressed through improved state management.
CVE-2024-40824: Wojciech Regula of SecuRing (wojciechregula.blog), and
Zhongquan Li (@Guluisacat) from Dawn Security Lab of JingDong

Sandbox
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to access protected user data
Description: A path handling issue was addressed with improved
validation.
CVE-2024-27871: Mickey Jin (@patch1t), Csaba Fitzl (@theevilbit) of
Kandji, and Zhongquan Li (@Guluisacat) of Dawn Security Lab of JingDong

Shortcuts
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A shortcut may be able to use sensitive data with certain
actions without prompting the user
Description: A logic issue was addressed with improved checks.
CVE-2024-40835: an anonymous researcher
CVE-2024-40836: an anonymous researcher

Shortcuts
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A shortcut may be able to bypass Internet permission
requirements
Description: A logic issue was addressed with improved checks.
CVE-2024-40809: an anonymous researcher
CVE-2024-40812: an anonymous researcher

Shortcuts
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: A shortcut may be able to bypass Internet permission
requirements
Description: This issue was addressed by adding an additional prompt for
user consent.
CVE-2024-40787: an anonymous researcher

Shortcuts
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An app may be able to access user-sensitive data
Description: This issue was addressed by removing the vulnerable code.
CVE-2024-40793: Kirin (@Pwnrin)

Siri
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An attacker may be able to view sensitive user information
Description: This issue was addressed through improved state management.
CVE-2024-40786: Bistrit Dahal

Siri
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An attacker with physical access may be able to use Siri to
access sensitive user data
Description: This issue was addressed by restricting options offered on
a locked device.
CVE-2024-40818: Bistrit Dahal and Srijan Poudel

Siri
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An attacker with physical access to a device may be able to
access contacts from the lock screen
Description: This issue was addressed by restricting options offered on
a locked device.
CVE-2024-40822: Srijan Poudel

VoiceOver
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: An attacker may be able to view restricted content from the lock
screen
Description: The issue was addressed with improved checks.
CVE-2024-40829: Abhay Kailasia (@abhay_kailasia) of Lakshmi Narain
College of Technology Bhopal India

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: A use-after-free issue was addressed with improved memory
management.
WebKit Bugzilla: 273176
CVE-2024-40776: Huang Xilin of Ant Group Light-Year Security Lab
WebKit Bugzilla: 268770
CVE-2024-40782: Maksymilian Motyl

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: An out-of-bounds read was addressed with improved bounds
checking.
WebKit Bugzilla: 275431
CVE-2024-40779: Huang Xilin of Ant Group Light-Year Security Lab
WebKit Bugzilla: 275273
CVE-2024-40780: Huang Xilin of Ant Group Light-Year Security Lab

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing maliciously crafted web content may lead to a cross
site scripting attack
Description: This issue was addressed with improved checks.
WebKit Bugzilla: 273805
CVE-2024-40785: Johan Carlsson (joaxcar)

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: An out-of-bounds access issue was addressed with improved
bounds checking.
CVE-2024-40789: Seunghyun Lee (@0x10n) of KAIST Hacking Lab working with
Trend Micro Zero Day Initiative

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Processing maliciously crafted web content may lead to an
unexpected process crash
Description: This is a vulnerability in open source code and Apple
Software is among the affected projects. The CVE-ID was assigned by a
third party. Learn more about the issue and CVE-ID at cve.org.
WebKit Bugzilla: 274165
CVE-2024-4558

WebKit
Available for: iPhone XS and later, iPad Pro 13-inch, iPad Pro 12.9-inch
2nd generation and later, iPad Pro 10.5-inch, iPad Pro 11-inch 1st
generation and later, iPad Air 3rd generation and later, iPad 6th
generation and later, and iPad mini 5th generation and later
Impact: Private Browsing tabs may be accessed without authentication
Description: This issue was addressed through improved state management.
WebKit Bugzilla: 275272
CVE-2024-40794: Matthew Butler

Additional recognition

AirDrop
We would like to acknowledge Linwz of DEVCORE for their assistance.

Settings
We would like to acknowledge Joshua Thomas for their assistance.

Shortcuts
We would like to acknowledge an anonymous researcher for their
assistance.

This update is available through iTunes and Software Update on your
iOS device, and will not appear in your computer's Software Update
application, or in the Apple Downloads site. Make sure you have an
Internet connection and have installed the latest version of iTunes
from https://www.apple.com/itunes/  iTunes and Software Update on the
device will automatically check Apple's update server on its weekly
schedule. When an update is detected, it is downloaded and the option
to be installed is presented to the user when the iOS device is
docked. We recommend applying the update immediately if possible.
Selecting Don't Install will present the option the next time you
connect your iOS device.  The automatic update process may take up to
a week depending on the day that iTunes or the device checks for
updates. You may manually obtain the update via the Check for Updates
button within iTunes, or the Software Update on your device.  To
check that the iPhone, iPod touch, or iPad has been updated:  *
Navigate to Settings * Select General * Select About. The version
after applying this update will be "iOS 17.6 and iPadOS 17.6".
All information is also posted on the Apple Security Releases
web site: https://support.apple.com/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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