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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.

Additional CVE entries coming soon.

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

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

WebKit
Available for: macOS Ventura
Impact: Processing web content may lead to arbitrary code
execution. 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.
WebKit Bugzilla: 261544
CVE-2023-41993: Bill Marczak of The Citizen Lab at The University of
Toronto's Munk School and Maddie Stone of Google's Threat Analysis Group

Additional recognition

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.

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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