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APPLE-SA-09-26-2023-4 Additional information for APPLE-SA-2023-09-21-6 macOS Ventura 13.6

macOS Ventura 13.6 addresses the following issues.
Information about the security content is also available at
https://support.apple.com/kb/HT213931.

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

Apple Neural Engine
Available for: macOS Ventura
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved memory handling.
CVE-2023-40412: Mohamed GHANNAM (@_simo36)
CVE-2023-40409: Ye Zhang (@VAR10CK) of Baidu Security
Entry added September 26, 2023

Apple Neural Engine
Available for: macOS Ventura
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: A use-after-free issue was addressed with improved memory
management.
CVE-2023-41071: Mohamed GHANNAM (@_simo36)
Entry added September 26, 2023

Apple Neural Engine
Available for: macOS Ventura
Impact: An app may be able to disclose kernel memory
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2023-40410: Tim Michaud (@TimGMichaud) of Moveworks.ai
Entry added September 26, 2023

Biometric Authentication
Available for: macOS Ventura
Impact: An app may be able to disclose kernel memory
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2023-41232: Liang Wei of PixiePoint Security
Entry added September 26, 2023

ColorSync
Available for: macOS Ventura
Impact: An app may be able to read arbitrary files
Description: The issue was addressed with improved checks.
CVE-2023-40406: JeongOhKyea of Theori
Entry added September 26, 2023

CoreAnimation
Available for: macOS Ventura
Impact: Processing web content may lead to a denial-of-service
Description: The issue was addressed with improved memory handling.
CVE-2023-40420: 이준성(Junsung Lee) of Cross Republic
Entry added September 26, 2023

Kernel
Available for: macOS Ventura
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved memory handling.
CVE-2023-41984: Pan ZhenPeng (@Peterpan0927) of STAR Labs SG Pte. Ltd.
Entry added September 26, 2023

Kernel
Available for: macOS Ventura
Impact: An attacker that has already achieved kernel code execution may
be able to bypass kernel memory mitigations
Description: The issue was addressed with improved memory handling.
CVE-2023-41981: Linus Henze of Pinauten GmbH (pinauten.de)
Entry added September 26, 2023

Kernel
Available for: macOS Ventura
Impact: A local attacker may be able to elevate their privileges. Apple
is aware of a report that this issue may have been actively exploited
against versions of iOS before iOS 16.7.
Description: The issue was addressed with improved checks.
CVE-2023-41992: Bill Marczak of The Citizen Lab at The University of
Toronto's Munk School and Maddie Stone of Google's Threat Analysis Group

libxpc
Available for: macOS Ventura
Impact: An app may be able to access protected user data
Description: An authorization issue was addressed with improved state
management.
CVE-2023-41073: Zhipeng Huo (@R3dF09) of Tencent Security Xuanwu Lab
(xlab.tencent.com)
Entry added September 26, 2023

libxpc
Available for: macOS Ventura
Impact: An app may be able to delete files for which it does not have
permission
Description: A permissions issue was addressed with additional
restrictions.
CVE-2023-40454: Zhipeng Huo (@R3dF09) of Tencent Security Xuanwu Lab
(xlab.tencent.com)
Entry added September 26, 2023

libxslt
Available for: macOS Ventura
Impact: Processing web content may disclose sensitive information
Description: The issue was addressed with improved memory handling.
CVE-2023-40403: Dohyun Lee (@l33d0hyun) of PK Security
Entry added September 26, 2023

Maps
Available for: macOS Ventura
Impact: An app may be able to read sensitive location information
Description: The issue was addressed with improved handling of caches.
CVE-2023-40427: Adam M., and Wojciech Regula of SecuRing
(wojciechregula.blog)
Entry added September 26, 2023

Pro Res
Available for: macOS Ventura
Impact: An app may be able to execute arbitrary code with kernel
privileges
Description: The issue was addressed with improved memory handling.
CVE-2023-41063: Certik Skyfall Team
Entry added September 26, 2023

Sandbox
Available for: macOS Ventura
Impact: An app may be able to overwrite arbitrary files
Description: The issue was addressed with improved bounds checks.
CVE-2023-40452: Yiğit Can YILMAZ (@yilmazcanyigit)
Entry added September 26, 2023

Sandbox
Available for: macOS Ventura
Impact: Apps that fail verification checks may still launch
Description: The issue was addressed with improved checks.
CVE-2023-41996: Yiğit Can YILMAZ (@yilmazcanyigit) and Mickey Jin
(@patch1t)
Entry added September 26, 2023

Security
Available for: macOS Ventura
Impact: A malicious app may be able to bypass signature
validation. Apple is aware of a report that this issue may have been
actively exploited against versions of iOS before iOS 16.7.
Description: A certificate validation issue was addressed.
CVE-2023-41991: Bill Marczak of The Citizen Lab at The University of
Toronto's Munk School and Maddie Stone of Google's Threat Analysis Group

Share Sheet
Available for: macOS Ventura
Impact: An app may be able to access sensitive data logged when a user
shares a link
Description: A logic issue was addressed with improved checks.
CVE-2023-41070: Kirin (@Pwnrin)
Entry added September 26, 2023

StorageKit
Available for: macOS Ventura
Impact: An app may be able to read arbitrary files
Description: This issue was addressed with improved validation of
symlinks.
CVE-2023-41968: Mickey Jin (@patch1t), James Hutchins
Entry added September 26, 2023

Additional recognition

AppSandbox
We would like to acknowledge Kirin (@Pwnrin) for their assistance.
Entry added September 26, 2023

Kernel
We would like to acknowledge Bill Marczak of The Citizen Lab at The
University of Toronto's Munk School and Maddie Stone of Google's Threat
Analysis Group for their assistance.

libxml2
We would like to acknowledge OSS-Fuzz, and Ned Williamson of Google
Project Zero for their assistance.
Entry added September 26, 2023

WebKit
We would like to acknowledge Khiem Tran, and Narendra Bhati From Suma
Soft Pvt. Ltd, Pune (India) for their assistance.
Entry added September 26, 2023

WebRTC
We would like to acknowledge anonymous researcher for their assistance.
Entry added September 26, 2023

macOS Ventura 13.6 may be obtained from the Mac App Store or Apple's
Software Downloads web site: https://support.apple.com/downloads/
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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