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APPLE-SA-2020-09-24-1 macOS Catalina 10.15.6 Supplemental Update,
Security Update 2020-005 High Sierra, Security Update 2020-005 Mojave

macOS Catalina 10.15.6 Supplemental Update, Security Update 2020-005
High Sierra, Security Update 2020-005 Mojave are now available and
address the following:

ImageIO
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6
Impact: Processing a maliciously crafted image may lead to arbitrary
code execution
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2020-9961: Xingwei Lin of Ant Group Light-Year Security Lab

Mail
Available for: macOS High Sierra 10.13.6
Impact: A remote attacker may be able to unexpectedly alter
application state
Description: This issue was addressed with improved checks.
CVE-2020-9941: Fabian Ising of FH Münster University of Applied
Sciences and Damian Poddebniak of FH Münster University of Applied
Sciences

Model I/O
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS
Catalina 10.15
Impact: Processing a maliciously crafted USD file may lead to
unexpected application termination or arbitrary code execution
Description: An out-of-bounds read was addressed with improved bounds
checking.
CVE-2020-9973: Aleksandar Nikolic of Cisco Talos

Sandbox
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS
Catalina 10.15
Impact: A malicious application may be able to access restricted
files
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9968: Adam Chester(@xpn) of TrustedSec

Additional recognition

Bluetooth
We would like to acknowledge Andy Davis of NCC Group for their
assistance.

Installation note:

macOS Catalina 10.15.6 Supplemental Update, Security Update 2020-005
High Sierra, Security Update 2020-005 Mojave may be obtained from the
Mac App Store or
Apple's Software Downloads web site:
https://support.apple.com/downloads/
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