About the security content of iOS 17.3 and iPadOS 17.3

This document describes the security content of iOS 17.3 and iPadOS 17.3.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security releases page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

For more information about security, see the Apple Product Security page.

iOS 17.3 and iPadOS 17.3

Apple Neural Engine

Available for devices with Apple Neural Engine: iPhone XS and later, iPad Pro 12.9-inch 3rd generation and later, iPad Pro 11-inch 1st generation and later, iPad Air 3rd generation and later, iPad 8th generation and later, and iPad mini 5th generation 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-2024-23212: Ye Zhang of Baidu Security

CoreCrypto

Available for: iPhone XS and later, 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 decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key

Description: A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions.

CVE-2024-23218: Clemens Lang

Kernel

Available for: iPhone XS and later, 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 execute arbitrary code with kernel privileges

Description: The issue was addressed with improved memory handling.

CVE-2024-23208: fmyy(@binary_fmyy) and lime From TIANGONG Team of Legendsec at QI-ANXIN Group

libxpc

Available for: iPhone XS and later, 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 cause a denial-of-service

Description: A permissions issue was addressed with additional restrictions.

CVE-2024-23201: Koh M. Nakagawa of FFRI Security, Inc. and an anonymous researcher

Mail Search

Available for: iPhone XS and later, 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 sensitive user data

Description: This issue was addressed with improved redaction of sensitive information.

CVE-2024-23207: Noah Roskin-Frazee and Prof. J. (ZeroClicks.ai Lab), and Ian de Marcellus

Notes

Available for: iPhone XS and later, 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: Locked Notes content may have been unexpectedly unlocked

Description: This issue was addressed through improved state management.

CVE-2024-23228: Harsh Tyagi

NSSpellChecker

Available for: iPhone XS and later, 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 sensitive user data

Description: A privacy issue was addressed with improved handling of files.

CVE-2024-23223: Noah Roskin-Frazee and Prof. J. (ZeroClicks.ai Lab)

Power Manager

Available for: iPhone XS and later, 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 corrupt coprocessor memory

Description: The issue was addressed with improved checks.

CVE-2024-27791: Pan ZhenPeng (@Peterpan0927) of STAR Labs SG Pte. Ltd.

Reset Services

Available for: iPhone XS and later

Impact: Stolen Device Protection may be unexpectedly disabled

Description: The issue was addressed with improved authentication.

CVE-2024-23219: Peter Watthey and Christian Scalese

Safari

Available for: iPhone XS and later, 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 user's private browsing activity may be visible in Settings

Description: A privacy issue was addressed with improved handling of user preferences.

CVE-2024-23211: Mark Bowers

Shortcuts

Available for: iPhone XS and later, 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: The issue was addressed with additional permissions checks.

CVE-2024-23203: an anonymous researcher

CVE-2024-23204: Jubaer Alnazi (@h33tjubaer)

Shortcuts

Available for: iPhone XS and later, 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 certain Privacy preferences

Description: A privacy issue was addressed with improved handling of temporary files.

CVE-2024-23217: Kirin (@Pwnrin)

TCC

Available for: iPhone XS and later, 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: An issue was addressed with improved handling of temporary files.

CVE-2024-23215: Zhongquan Li (@Guluisacat)

Time Zone

Available for: iPhone XS and later, 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 view a user's phone number in system logs

Description: This issue was addressed with improved redaction of sensitive information.

CVE-2024-23210: Noah Roskin-Frazee and Prof. J. (ZeroClicks.ai Lab)

WebKit

Available for: iPhone XS and later, 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 maliciously crafted webpage may be able to fingerprint the user

Description: An access issue was addressed with improved access restrictions.

CVE-2024-23206: an anonymous researcher

WebKit

Available for: iPhone XS and later, 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 web content may lead to arbitrary code execution

Description: The issue was addressed with improved memory handling.

CVE-2024-23213: Wangtaiyu of Zhongfu info

WebKit

Available for: iPhone XS and later, 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 arbitrary code execution

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2024-23214: Nan Wang (@eternalsakura13) of 360 Vulnerability Research Institute

WebKit

Available for: iPhone XS and later, 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 arbitrary code execution. Apple is aware of a report that this issue may have been exploited.

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

CVE-2024-23222

WebKit

Available for: iPhone XS and later, 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 website may cause unexpected cross-origin behavior

Description: A logic issue was addressed with improved checks.

CVE-2024-23271: James Lee (@Windowsrcer)

Additional recognition

NetworkExtension

We would like to acknowledge Nils Rollshausen for their assistance.