About the security content of macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra
This document describes the security content of macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra.
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Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
macOS Catalina 10.15.4, Security Update 2020-002 Mojave, Security Update 2020-002 High Sierra
Accounts
Available for: macOS Catalina 10.15.3
Impact: A sandboxed process may be able to circumvent sandbox restrictions
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9772: Allison Husain of UC Berkeley
Apple HSSPI Support
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: An application may be able to execute arbitrary code with system privileges
Description: A memory corruption issue was addressed with improved memory handling.
CVE-2020-3903: Proteas of Qihoo 360 Nirvan Team
AppleGraphicsControl
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: Multiple memory corruption issues were addressed with improved state management.
CVE-2020-3904: Proteas of Qihoo 360 Nirvan Team
AppleMobileFileIntegrity
Available for: macOS Catalina 10.15.3
Impact: An application may be able to use arbitrary entitlements
Description: This issue was addressed with improved checks.
CVE-2020-3883: Linus Henze (pinauten.de)
Bluetooth
Available for: macOS Catalina 10.15.3
Impact: an attacker in a privileged network position may be able to intercept Bluetooth traffic
Description: an issue existed with the use of a PRNG with low entropy. This issue was addressed with improved state management.
CVE-2020-6616: Jörn Tillmanns (@matedealer) and Jiska Classen (@naehrdine) of Secure Mobile Networking Lab
Bluetooth
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: a malicious application may be able to determine kernel memory layout
Description: a memory corruption issue was addressed with improved validation.
CVE-2020-9853: Yu Wang of Didi Research America
Bluetooth
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: A local user may be able to cause unexpected system termination or read kernel memory
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2020-3907: Yu Wang of Didi Research America
CVE-2020-3908: Yu Wang of Didi Research America
CVE-2020-3912: Yu Wang of Didi Research America
CVE-2020-9779: Yu Wang of Didi Research America
Bluetooth
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A memory corruption issue was addressed with improved input validation.
CVE-2020-3892: Yu Wang of Didi Research America
CVE-2020-3893: Yu Wang of Didi Research America
CVE-2020-3905: Yu Wang of Didi Research America
Bluetooth
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6
Impact: An application may be able to read restricted memory
Description: A validation issue was addressed with improved input sanitisation.
CVE-2019-8853: Jianjun Dai of Qihoo 360 Alpha Lab
Call History
Available for: macOS Catalina 10.15.3
Impact: a malicious application may be able to access a user's call history
Description: This issue was addressed with a new entitlement.
CVE-2020-9776: Benjamin Randazzo (@____benjamin)
CoreBluetooth
Available for: macOS Catalina 10.15.3
Impact: a remote attacker may be able to leak sensitive user information
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2020-9828: Jianjun Dai of Qihoo 360 Alpha Lab
CoreFoundation
Available for: macOS Catalina 10.15.3
Impact: A malicious application may be able to elevate privileges
Description: A permissions issue existed. This issue was addressed with improved permission validation.
CVE-2020-3913: Timo Christ of Avira Operations GmbH & Co. KG
CoreText
Available for: macOS Catalina 10.15.3
Impact: processing a maliciously crafted text message may lead to application denial of service
Description: A validation issue was addressed with improved input sanitisation.
CVE-2020-9829: Aaron Perris (@aaronp613), an anonymous researcher, an anonymous researcher, Carlos S Tech, Sam Menzies of Sam’s Lounge, Sufiyan Gouri of Lovely Professional University, India, Suleman Hasan Rathor of Arabic-Classroom.com
CUPS
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: An application may be able to gain elevated privileges
Description: a memory corruption issue was addressed with improved validation.
CVE-2020-3898: Stephan Zeisberg (github.com/stze) of Security Research Labs (srlabs.de)
FaceTime
Available for: macOS Catalina 10.15.3
Impact: A local user may be able to view sensitive user information
Description: A logic issue was addressed with improved state management.
CVE-2020-3881: Yuval Ron, Amichai Shulman and Eli Biham of Technion - Israel Institute of Technology
Intel Graphics Driver
Available for: macOS Catalina 10.15.3
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A use after free issue was addressed with improved memory management.
CVE-2020-3886: Proteas
Intel Graphics Driver
Available for: macOS Catalina 10.15.3
Impact: a malicious application may disclose restricted memory
Description: an information disclosure issue was addressed with improved state management.
CVE-2019-14615: Wenjian HE of Hong Kong University of Science and Technology, Wei Zhang of Hong Kong University of Science and Technology, Sharad Sinha of Indian Institute of Technology Goa and Sanjeev Das of University of North Carolina
IOHIDFamily
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A memory initialisation issue was addressed with improved memory handling.
CVE-2020-3919: Alex Plaskett of F-Secure Consulting
IOThunderboltFamily
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6
Impact: An application may be able to gain elevated privileges
Description: A use after free issue was addressed with improved memory management.
CVE-2020-3851: Xiaolong Bai and Min (Spark) Zheng of Alibaba Inc. and Luyi Xing of Indiana University Bloomington
iTunes
Available for: macOS Catalina 10.15.3
Impact: a malicious application may be able to overwrite arbitrary files
Description: this issue was addressed by removing the vulnerable code.
CVE-2020-3896: Christoph Falta
Kernel
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3
Impact: An application may be able to read restricted memory
Description: A memory initialisation issue was addressed with improved memory handling.
CVE-2020-3914: pattern-f (@pattern_F_) of WaCai
Kernel
Available for: macOS Catalina 10.15.3
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: Multiple memory corruption issues were addressed with improved state management.
CVE-2020-9785: Proteas of Qihoo 360 Nirvan Team
libxml2
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3
Impact: Multiple issues in libxml2
Description: A buffer overflow was addressed with improved bounds checking.
CVE-2020-3909: LGTM.com
CVE-2020-3911: found by OSS-Fuzz
libxml2
Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.3
Impact: Multiple issues in libxml2
Description: A buffer overflow was addressed with improved size validation.
CVE-2020-3910: LGTM.com
Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: a remote attacker may be able to cause arbitrary javascript code execution
Description: an injection issue was addressed with improved validation.
CVE-2020-3884: Apple
Printing
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.3
Impact: a malicious application may be able to overwrite arbitrary files
Description: A path handling issue was addressed with improved validation.
CVE-2020-3915: an anonymous researcher working with iDefense Labs (https://vcp.idefense.com/), HyungSeok Han (DaramG) @Theori working with TrendMicro’s Zero Day Initiative
Safari
Available for: macOS Catalina 10.15.3
Impact: a user's private browsing activity may be unexpectedly saved in Screen Time
Description: an issue existed in the handling of tabs displaying picture in picture video. The issue was corrected with improved state handling.
CVE-2020-9775: Andrian (@retroplasma), Marat Turaev, Marek Wawro (futurefinance.com) and Sambor Wawro of STO64 School Krakow Poland
Sandbox
Available for: macOS Catalina 10.15.3
Impact: a user may gain access to protected parts of the file system
Description: This issue was addressed with a new entitlement.
CVE-2020-9771: Csaba Fitzl (@theevilbit) of Offensive Security
Sandbox
Available for: macOS Catalina 10.15.3
Impact: A local user may be able to view sensitive user information
Description: An access issue was addressed with additional sandbox restrictions.
CVE-2020-3918: an anonymous researcher, Augusto Alvarez of Outcourse Limited
sudo
Available for: macOS Catalina 10.15.3
Impact: an attacker may be able to run commands as a non-existent user
Description: this issue was addressed by updating to sudo version 1.8.31.
CVE-2019-19232
sysdiagnose
Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6
Impact: an application may be able to trigger a sysdiagnose
Description: This issue was addressed with improved checks
CVE-2020-9786: Dayton Pidhirney (@_watbulb) of Seekintoo (@seekintoo)
TCC
Available for: macOS Mojave 10.14.6, macOS Catalina 10.15.3
Impact: a maliciously crafted application may be able to bypass code signing enforcement
Description: A logic issue was addressed with improved restrictions.
CVE-2020-3906: Patrick Wardle of Jamf
Time Machine
Available for: macOS Catalina 10.15.3
Impact: a local user may be able to read arbitrary files
Description: A logic issue was addressed with improved state management.
CVE-2020-3889: Lasse Trolle Borup of Danish Cyber Defence
Vim
Available for: macOS Catalina 10.15.3
Impact: multiple issues in Vim
Description: multiple issues were addressed by updating to version 8.1.1850.
CVE-2020-9769: Steve Hahn of LinkedIn
WebKit
Available for: macOS Catalina 10.15.3
Impact: Some websites may not have appeared in Safari Preferences
Description: A logic issue was addressed with improved restrictions.
CVE-2020-9787: Ryan Pickren (ryanpickren.com)
WebKit
Available for: macOS Catalina 10.15.3
Impact: Processing maliciously crafted web content may lead to a cross-site scripting attack
Description: An input validation issue was addressed with improved input validation.
CVE-2020-3902: Yiğit Can YILMAZ (@yilmazcanyigit)
Additional recognition
CoreText
We would like to acknowledge an anonymous researcher for their assistance.
FireWire Audio
We would like to acknowledge Xiaolong Bai and Min (Spark) Zheng of Alibaba Inc. and Luyi Xing of Indiana University Bloomington for their assistance.
FontParser
We would like to acknowledge Matthew Denton of Google Chrome for their assistance.
Installer
We would like to acknowledge Pris Sears of Virginia Tech, Tom Lynch of UAL Creative Computing Institute, and an anonymous researcher for their assistance.
Install Framework Legacy
We would like to acknowledge Pris Sears of Virginia Tech, Tom Lynch of UAL Creative Computing Institute and an anonymous researcher for their assistance.
LinkPresentation
We would like to acknowledge Travis for their assistance.
OpenSSH
We would like to acknowledge an anonymous researcher for their assistance.
rapportd
We would like to acknowledge Alexander Heinrich (@Sn0wfreeze) of Technische Universität Darmstadt for their assistance.
Sidecar
We would like to acknowledge Rick Backley (@rback_sec) for their assistance.
sudo
We would like to acknowledge Giorgio Oppo (linkedin.com/in/giorgio-oppo/) for their assistance.
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