About the security content of macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006

This document describes the security content of macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006.

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macOS Catalina 10.15.1, Security Update 2019-001, Security Update 2019-006

Released October 29, 2019

Accounts

Available for: macOS Catalina 10.15

Impact: A remote attacker may be able to leak memory

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2019-8787: Steffen Klee of Secure Mobile Networking Lab at Technische Universität Darmstadt

App Store

Available for: macOS Catalina 10.15

Impact: A local attacker may be able to login to the account of a previously logged in user without valid credentials.

Description: An authentication issue was addressed with improved state management.

CVE-2019-8803: Kiyeon An, 차민규 (CHA Minkyu)

AppleGraphicsControl

Available for: macOS Catalina 10.15

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2019-8817: Arash Tohidi

AppleGraphicsControl

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

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-2019-8716: Zhiyi Zhang of Codesafe Team of Legendsec at Qi'anxin Group, Zhuo Liang of Qihoo 360 Vulcan Team

Associated Domains

Available for: macOS Catalina 10.15

Impact: Improper URL processing may lead to data exfiltration

Description: An issue existed in the parsing of URLs. This issue was addressed with improved input validation.

CVE-2019-8788: Juha Lindstedt of Pakastin, Mirko Tanania, Rauli Rikama of Zero Keyboard Ltd

Audio

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Processing a maliciously crafted audio file may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved state management.

CVE-2019-8706: Yu Zhou of Ant-financial Light-Year Security Lab

Audio

Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15

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-2019-8785: Ian Beer of Google Project Zero

CVE-2019-8797: 08Tc3wBB working with SSD Secure Disclosure

Books

Available for: macOS Catalina 10.15

Impact: Parsing a maliciously crafted iBooks file may lead to disclosure of user information

Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks.

CVE-2019-8789: Gertjan Franken of imec-DistriNet, KU Leuven

Contacts

Available for: macOS Catalina 10.15

Impact: Processing a maliciously contact may lead to UI spoofing

Description: An inconsistent user interface issue was addressed with improved state management.

CVE-2017-7152: Oliver Paukstadt of Thinking Objects GmbH (to.com)

CoreAudio

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6

Impact: Playing a malicious audio file may lead to arbitrary code execution

Description: A memory corruption issue was addressed with improved input validation.

CVE-2019-8592: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative

Entry added November 6, 2019

CUPS

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: An attacker in a privileged network position may be able to leak sensitive user information

Description: An input validation issue was addressed with improved input validation.

CVE-2019-8736: Pawel Gocyla of ING Tech Poland (ingtechpoland.com)

CUPS

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Processing a maliciously crafted string may lead to heap corruption

Description: A memory consumption issue was addressed with improved memory handling.

CVE-2019-8767: Stephen Zeisberg

CUPS

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: An attacker in a privileged position may be able to perform a denial of service attack

Description: A denial of service issue was addressed with improved validation.

CVE-2019-8737: Pawel Gocyla of ING Tech Poland (ingtechpoland.com)

File Quarantine

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: A malicious application may be able to elevate privileges

Description: This issue was addressed by removing the vulnerable code.

CVE-2019-8509: CodeColorist of Ant-Financial LightYear Labs

File System Events

Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15

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-2019-8798: ABC Research s.r.o. working with Trend Micro's Zero Day Initiative

Graphics

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Processing a malicious shader may result in unexpected application termination or arbitrary code execution

Description: Multiple memory corruption issues were addressed with improved input validation.

CVE-2018-12152: Piotr Bania of Cisco Talos

CVE-2018-12153: Piotr Bania of Cisco Talos

CVE-2018-12154: Piotr Bania of Cisco Talos

Graphics Driver

Available for: macOS Catalina 10.15

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-2019-8784: Vasiliy Vasilyev and Ilya Finogeev of Webinar, LLC

Intel Graphics Driver

Available for: macOS Catalina 10.15

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-2019-8807: Yu Wang of Didi Research America

IOGraphics

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

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 bounds checking.

CVE-2019-8759: another of 360 Nirvan Team

iTunes

Available for: macOS Catalina 10.15

Impact: Running the iTunes installer in an untrusted directory may result in arbitrary code execution

Description: A dynamic library loading issue existed in iTunes setup. This was addressed with improved path searching.

CVE-2019-8801: Hou JingYi (@hjy79425575) of Qihoo 360 CERT

Kernel

Available for: macOS Catalina 10.15

Impact: An application may be able to read restricted memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2019-8794: 08Tc3wBB working with SSD Secure Disclosure

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8786: an anonymous researcher

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: A malicious application may be able to determine kernel memory layout

Description: A memory corruption issue existed in the handling of IPv6 packets. This issue was addressed with improved memory management.

CVE-2019-8744: Zhuo Liang of Qihoo 360 Vulcan Team

Kernel

Available for: macOS Catalina 10.15

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption vulnerability was addressed with improved locking.

CVE-2019-8829: Jann Horn of Google Project Zero

Entry added November 6, 2019

libxml2

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Multiple issues in libxml2

Description: Multiple memory corruption issues were addressed with improved input validation.

CVE-2019-8749: found by OSS-Fuzz

CVE-2019-8756: found by OSS-Fuzz

libxslt

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Multiple issues in libxslt

Description: Multiple memory corruption issues were addressed with improved input validation.

CVE-2019-8750: found by OSS-Fuzz

manpages

Available for: macOS High Sierra 10.13.6, macOS Catalina 10.15

Impact: A malicious application may be able to gain root privileges

Description: A validation issue was addressed with improved logic.

CVE-2019-8802: Csaba Fitzl (@theevilbit)

PluginKit

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: A local user may be able to check for the existence of arbitrary files

Description: A logic issue was addressed with improved restrictions.

CVE-2019-8708: an anonymous researcher

PluginKit

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

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-2019-8715: an anonymous researcher

System Extensions

Available for: macOS Catalina 10.15

Impact: An application may be able to execute arbitrary code with system privileges

Description: A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement.

CVE-2019-8805: Scott Knight (@sdotknight) of VMware Carbon Black TAU

UIFoundation

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: Parsing a maliciously crafted text file may lead to disclosure of user information

Description: This issue was addressed with improved checks.

CVE-2019-8761: Renee Trisberg of SpectX

Additional recognition

CFNetwork

We would like to acknowledge Lily Chen of Google for their assistance.

Kernel

We would like to acknowledge Brandon Azad of Google Project Zero, Daniel Roethlisberger of Swisscom CSIRT, Jann Horn of Google Project Zero for their assistance.

Entry updated November 6, 2019

libresolv

We would like to acknowledge enh at Google for their assistance.

Postfix

We would like to acknowledge Chris Barker of Puppet for their assistance.

python

We would like to acknowledge an anonymous researcher for their assistance.

VPN

We would like to acknowledge Royce Gawron of Second Son Consulting, Inc. for their assistance.

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