About the security content of macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

This document describes the security content of macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra.

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macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

Released January 28, 2020

AnnotationKit

Available for: macOS Catalina 10.15.2

Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution

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

CVE-2020-3877: an anonymous researcher working with Trend Micro's Zero Day Initiative

apache_mod_php

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: Multiple issues in PHP

Description: Multiple issues were addressed by updating to PHP version 7.3.11.

CVE-2019-11043

Audio

Available for: macOS Catalina 10.15.2

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-2020-3857: Zhuo Liang of Qihoo 360 Vulcan Team

autofs

Available for: macOS Catalina 10.15.2

Impact: Searching for and opening a file from an attacker controlled NFS mount may bypass Gatekeeper

Description: This was addressed with additional checks by Gatekeeper on files mounted through a network share.

CVE-2020-3866: Jose Castro Almeida (@HackerOn2Wheels) and René Kroka (@rene_kroka)

CoreBluetooth

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.2

Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution

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

CVE-2020-3848: Jianjun Dai of Qihoo 360 Alpha Lab

CVE-2020-3849: Jianjun Dai of Qihoo 360 Alpha Lab

CVE-2020-3850: Jianjun Dai of Qihoo 360 Alpha Lab

Entry updated February 3, 2020

CoreBluetooth

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.2

Impact: A remote attacker may be able to leak memory

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

CVE-2020-3847: Jianjun Dai of Qihoo 360 Alpha Lab

Entry updated February 3, 2020

Crash Reporter

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.2

Impact: A malicious application may be able to access restricted files

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

CVE-2020-3835: Csaba Fitzl (@theevilbit)

Image Processing

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: Viewing a maliciously crafted JPEG file may lead to arbitrary code execution

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

CVE-2020-3827: Samuel Groß of Google Project Zero

ImageIO

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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-2020-3826: Samuel Groß of Google Project Zero

CVE-2020-3870

CVE-2020-3878: Samuel Groß of Google Project Zero

Intel Graphics Driver

Available for: macOS Mojave 10.14.6, macOS Catalina 10.15.2

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-2020-3845: Zhuo Liang of Qihoo 360 Vulcan Team

IOAcceleratorFamily

Available for: macOS Catalina 10.15.2

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-2020-3837: Brandon Azad of Google Project Zero

IPSec

Available for: macOS Catalina 10.15.2

Impact: Loading a maliciously crafted racoon configuration file may lead to arbitrary code execution

Description: An off by one issue existed in the handling of racoon configuration files. This issue was addressed through improved bounds checking.

CVE-2020-3840: @littlelailo

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: An application may be able to read restricted memory

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

CVE-2020-3875: Brandon Azad of Google Project Zero

Kernel

Available for: macOS Catalina 10.15.2

Impact: An application may be able to read restricted memory

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

CVE-2020-3872: Haakon Garseg Mørk of Cognite and Cim Stordal of Cognite

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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

Description: A type confusion issue was addressed with improved memory handling.

CVE-2020-3853: Brandon Azad of Google Project Zero

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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

Description: An access issue was addressed with improved memory management.

CVE-2020-3836: Brandon Azad of Google Project Zero

Kernel

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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-2020-3842: Ned Williamson working with Google Project Zero

CVE-2020-3871: Corellium

libxml2

Available for: macOS Mojave 10.14.6, macOS High Sierra 10.13.6, macOS Catalina 10.15.2

Impact: Processing maliciously crafted XML may lead to an unexpected application termination or arbitrary code execution

Description: A buffer overflow was addressed with improved size validation.

CVE-2020-3846: Ranier Vilela

Entry updated February 3, 2020

libxpc

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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

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

CVE-2020-3856: Ian Beer of Google Project Zero

libxpc

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: An application may be able to gain elevated privileges

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

CVE-2020-3829: Ian Beer of Google Project Zero

PackageKit

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: A malicious application may be able to overwrite arbitrary files

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

CVE-2020-3830: Csaba Fitzl (@theevilbit)

Security

Available for: macOS Catalina 10.15.2

Impact: A malicious application may be able to break out of its sandbox

Description: A logic issue was addressed with improved restrictions.

CVE-2020-3854: Jakob Rieck (@0xdead10cc) and Maximilian Blochberger of the Security in Distributed Systems Group of University of Hamburg

Entry updated February 3, 2020

sudo

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: Certain configurations may allow a local attacker to execute arbitrary code

Description: A buffer overflow issue was addressed with improved memory handling.

CVE-2019-18634: Apple

System

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6

Impact: A malicious application may be able to overwrite arbitrary files

Description: An access issue was addressed with improved access restrictions.

CVE-2020-3855: Csaba Fitzl (@theevilbit)

Wi-Fi

Available for: macOS Catalina 10.15.2

Impact: An application may be able to read restricted memory

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

CVE-2020-3839: s0ngsari of Theori and Lee of Seoul National University working with Trend Micro's Zero Day Initiative

Wi-Fi

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

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

CVE-2020-3843: Ian Beer of Google Project Zero

wifivelocityd

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.6, macOS Catalina 10.15.2

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

Description: The issue was addressed with improved permissions logic.

CVE-2020-3838: Dayton Pidhirney (@_watbulb)

Additional recognition

Photos Storage

We would like to acknowledge Salman Husain of UC Berkeley for their assistance.

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