About the security content of macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra

This document describes the security content of macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra.

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macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra

Released March 25, 2019

802.1X

Available for: macOS Mojave 10.14.3

Impact: An attacker in a privileged network position may be able to intercept network traffic

Description: A logic issue was addressed with improved state management.

CVE-2019-6203: Dominic White of SensePost (@singe)

Entry added April 15, 2019

802.1X

Available for: macOS High Sierra 10.13.6

Impact: An untrusted radius server certificate may be trusted

Description: A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation.

CVE-2019-8531: an anonymous researcher, QA team of SecureW2

Entry added May 15, 2019

Accounts

Available for: macOS Mojave 10.14.3

Impact: Processing a maliciously crafted vcf file may lead to a denial of service

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

CVE-2019-8538: Trevor Spiniolas (@TrevorSpiniolas)

Entry added April 3, 2019

APFS

Available for: macOS Mojave 10.14.3

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

Description: A logic issue existed resulting in memory corruption. This was addressed with improved state management.

CVE-2019-8534: Mac working with Trend Micro's Zero Day Initiative

Entry added April 15, 2019

AppleGraphicsControl

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

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

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

CVE-2019-8555: Zhiyi Zhang of 360 ESG Codesafe Team, Zhuo Liang and shrek_wzw of Qihoo 360 Nirvan Team

Bom

Available for: macOS Mojave 10.14.3

Impact: A malicious application may bypass Gatekeeper checks

Description: This issue was addressed with improved handling of file metadata.

CVE-2019-6239: Ian Moorhouse and Michael Trimm

CFString

Available for: macOS Mojave 10.14.3

Impact: Processing a maliciously crafted string may lead to a denial of service

Description: A validation issue was addressed with improved logic.

CVE-2019-8516: SWIPS Team of Frifee Inc.

configd

Available for: macOS Mojave 10.14.3

Impact: A malicious application may be able to elevate privileges

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

CVE-2019-8552: Mohamed Ghannam (@_simo36)

Contacts

Available for: macOS Mojave 10.14.3

Impact: A malicious application may be able to elevate privileges

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

CVE-2019-8511: an anonymous researcher

CoreCrypto

Available for: macOS Mojave 10.14.3

Impact: A malicious application may be able to elevate privileges

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2019-8542: an anonymous researcher

DiskArbitration

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: An encrypted volume may be unmounted and remounted by a different user without prompting for the password

Description: A logic issue was addressed with improved state management.

CVE-2019-8522: Colin Meginnis (@falc420)

FaceTime

Available for: macOS Mojave 10.14.3

Impact: A user’s video may not be paused in a FaceTime call if they exit the FaceTime app while the call is ringing

Description: An issue existed in the pausing of FaceTime video. The issue was resolved with improved logic.

CVE-2019-8550: Lauren Guzniczak of Keystone Academy

Feedback Assistant

Available for: macOS Mojave 10.14.3

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

Description: A race condition was addressed with additional validation.

CVE-2019-8565: CodeColorist of Ant-Financial LightYear Labs

Feedback Assistant

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

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

Description: This issue was addressed with improved checks.

CVE-2019-8521: CodeColorist of Ant-Financial LightYear Labs

file

Available for: macOS Mojave 10.14.3

Impact: Processing a maliciously crafted file might disclose user information

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

CVE-2019-8906: Francisco Alonso

Entry updated April 15, 2019

Graphics Drivers

Available for: macOS Mojave 10.14.3

Impact: An application may be able to read restricted memory

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

CVE-2019-8519: Aleksandr Tarasikov (@astarasikov), Juwei Lin (@panicaII) and Junzhi Lu of Trend Micro Research working with Trend Micro's Zero Day Initiative, Lilang Wu and Moony Li of Trend Micro

Entry updated August 1, 2019

iAP

Available for: macOS Mojave 10.14.3

Impact: A malicious application may be able to elevate privileges

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2019-8542: an anonymous researcher

IOGraphics

Available for: macOS Mojave 10.14.3

Impact: A Mac may not lock when disconnecting from an external monitor

Description: A lock handling issue was addressed with improved lock handling.

CVE-2019-8533: an anonymous researcher, James Eagan of Télécom ParisTech, R. Scott Kemp of MIT, and Romke van Dijk of Z-CERT

IOHIDFamily

Available for: macOS Mojave 10.14.3

Impact: A local user may be able to cause unexpected system termination or read kernel memory

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

CVE-2019-8545: Adam Donenfeld (@doadam) of the Zimperium zLabs Team

IOKit

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: A local user may be able to read kernel memory

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

CVE-2019-8504: an anonymous researcher

IOKit SCSI

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14.3

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

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

CVE-2019-8529: Juwei Lin (@panicaII) of Trend Micro Research working with Trend Micro's Zero Day Initiative

Entry updated April 15, 2019

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A local user may be able to read kernel memory

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

CVE-2018-4448: Brandon Azad

Entry added September 17, 2019

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: A remote attacker may be able to alter network traffic data

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

CVE-2019-5608: Apple

Entry added August 6, 2019

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

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

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

CVE-2019-8527: Ned Williamson of Google and derrek (@derrekr6)

Kernel

Available for: macOS Mojave 10.14.3, macOS High Sierra 10.13.6

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

Description: A use after free issue was addressed with improved memory management.

CVE-2019-8528: Fabiano Anemone (@anoane), Zhao Qixun (@S0rryMybad) of Qihoo 360 Vulcan Team

Entry added April 3, 2019, updated August 1, 2019

Kernel

Available for: macOS Sierra 10.12.6, macOS Mojave 10.14.3

Impact: Mounting a maliciously crafted NFS network share may lead to arbitrary code execution with system privileges

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2019-8508: Dr. Silvio Cesare of InfoSect

Kernel

Available for: macOS Mojave 10.14.3

Impact: An application may be able to gain elevated privileges

Description: A logic issue was addressed with improved state management.

CVE-2019-8514: Samuel Groß of Google Project Zero

Kernel

Available for: macOS Sierra 10.12.6, macOS Mojave 10.14.3

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

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

CVE-2019-8540: Weibo Wang (@ma1fan) of Qihoo 360 Nirvan Team

Kernel

Available for: macOS Mojave 10.14.3

Impact: A local user may be able to read kernel memory

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

CVE-2019-7293: Ned Williamson of Google

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

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

Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.

CVE-2019-6207: Weibo Wang of Qihoo 360 Nirvan Team (@ma1fan)

CVE-2019-8510: Stefan Esser of Antid0te UG

Kernel

Available for: macOS Mojave 10.14.3

Impact: A remote attacker may be able to leak memory

Description: An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation.

CVE-2019-8547: derrek (@derrekr6)

Entry added August 1, 2019

Kernel

Available for: macOS Mojave 10.14.3

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

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

CVE-2019-8525: Zhuo Liang and shrek_wzw of Qihoo 360 Nirvan Team

Entry added August 1, 2019

libmalloc

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A malicious application may be able to modify protected parts of the file system

Description: A configuration issue was addressed with additional restrictions.

CVE-2018-4433: Vitaly Cheptsov

Entry added August 1, 2019, updated September 17, 2019

Mail

Available for: macOS Mojave 10.14.3

Impact: Processing a maliciously crafted mail message may lead to S/MIME signature spoofing

Description: An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates.

CVE-2019-8642: Maya Sigal of Freie Universität Berlin and Volker Roth of Freie Universität Berlin

Entry added August 1, 2019

Mail

Available for: macOS Mojave 10.14.3

Impact: An attacker in a privileged network position may be able to intercept the contents of S/MIME-encrypted e-mail

Description: An issue existed in the handling of encrypted Mail. This issue was addressed with improved isolation of MIME in Mail.

CVE-2019-8645: Maya Sigal of Freie Universität Berlin and Volker Roth of Freie Universität Berlin

Entry added August 1, 2019

Messages

Available for: macOS Mojave 10.14.3

Impact: A local user may be able to view sensitive user information

Description: An access issue was addressed with additional sandbox restrictions.

CVE-2019-8546: ChiYuan Chang

Modem CCL

Available for: macOS Mojave 10.14.3

Impact: An application may be able to gain elevated privileges

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

CVE-2019-8579: an anonymous researcher

Entry added April 15, 2019

Notes

Available for: macOS Mojave 10.14.3

Impact: A local user may be able to view a user’s locked notes

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

CVE-2019-8537: Greg Walker (gregwalker.us)

PackageKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: A malicious application may be able to elevate privileges

Description: A logic issue was addressed with improved validation.

CVE-2019-8561: Jaron Bradley of Crowdstrike

Perl

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: Multiple issues in Perl

Description: Multiple issues in Perl were addressed in this update.

CVE-2018-12015: Jakub Wilk

CVE-2018-18311: Jayakrishna Menon

CVE-2018-18313: Eiichi Tsukata

Power Management

Available for: macOS Mojave 10.14.3

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

Description: Multiple input validation issues existed in MIG generated code. These issues were addressed with improved validation.

CVE-2019-8549: Mohamed Ghannam (@_simo36) of SSD Secure Disclosure (ssd-disclosure.com)

QuartzCore

Available for: macOS Mojave 10.14.3

Impact: Processing malicious data may lead to unexpected application termination

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

CVE-2019-8507: Kai Lu of Fortinet's FortiGuard Labs

Sandbox

Available for: macOS Mojave 10.14.3

Impact: A sandboxed process may be able to circumvent sandbox restrictions

Description: A logic issue was addressed with improved restrictions.

CVE-2019-8618: Brandon Azad

Entry added August 1, 2019

Security

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: An application may be able to gain elevated privileges

Description: A use after free issue was addressed with improved memory management.

CVE-2019-8526: Linus Henze (pinauten.de)

Security

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: A malicious application may be able to read restricted memory

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

CVE-2019-8520: Antonio Groza, The UK's National Cyber Security Centre (NCSC)

Security

Available for: macOS Mojave 10.14.3

Impact: An untrusted radius server certificate may be trusted

Description: A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation.

CVE-2019-8531: an anonymous researcher, QA team of SecureW2

Security

Available for: macOS Mojave 10.14.3

Impact: An untrusted radius server certificate may be trusted

Description: A validation issue existed in Trust Anchor Management. This issue was addressed with improved validation.

CVE-2019-8531: an anonymous researcher, QA team of SecureW2

Entry added May 15, 2019

Siri

Available for: macOS Mojave 10.14.3

Impact: A malicious application may be able to initiate a Dictation request without user authorization

Description: An API issue existed in the handling of dictation requests. This issue was addressed with improved validation.

CVE-2019-8502: Luke Deshotels of North Carolina State University, Jordan Beichler of North Carolina State University, William Enck of North Carolina State University, Costin Carabaș of University POLITEHNICA of Bucharest, and Răzvan Deaconescu of University POLITEHNICA of Bucharest

Time Machine

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: A local user may be able to execute arbitrary shell commands

Description: This issue was addressed with improved checks.

CVE-2019-8513: CodeColorist of Ant-Financial LightYear Labs

Touch Bar Support

Available for: macOS Mojave 10.14.3

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-2019-8569: Viktor Oreshkin (@stek29)

Entry added August 1, 2019

TrueTypeScaler

Available for: macOS Mojave 10.14.3

Impact: Processing a maliciously crafted font may result in the disclosure of process memory

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

CVE-2019-8517: riusksk of VulWar Corp working with Trend Micro Zero Day Initiative

Wi-Fi

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14.3

Impact: An attacker in a privileged network position can modify driver state

Description: A logic issue was addressed with improved validation.

CVE-2019-8564: Hugues Anguelkov during an internship at Quarkslab

Entry added April 15, 2019

Wi-Fi

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: An attacker in a privileged network position can modify driver state

Description: A logic issue was addressed with improved state management.

CVE-2019-8612: Milan Stute of Secure Mobile Networking Lab at Technische Universität Darmstadt

Entry added August 1, 2019

Wi-Fi

Available for: macOS Mojave 10.14.3

Impact: A device may be passively tracked by its WiFi MAC address

Description: A user privacy issue was addressed by removing the broadcast MAC address.

CVE-2019-8567: David Kreitschmann and Milan Stute of Secure Mobile Networking Lab at Technische Universität Darmstadt

Entry added August 1, 2019

xar

Available for: macOS Mojave 10.14.3

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

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

CVE-2019-6238: Yiğit Can YILMAZ (@yilmazcanyigit)

Entry added April 15, 2019

XPC

Available for: macOS Sierra 10.12.6, macOS Mojave 10.14.3

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

Description: This issue was addressed with improved checks.

CVE-2019-8530: CodeColorist of Ant-Financial LightYear Labs

Additional recognition

Accounts

We would like to acknowledge Milan Stute of Secure Mobile Networking Lab at Technische Universität Darmstadt for their assistance.

Books

We would like to acknowledge Yiğit Can YILMAZ (@yilmazcanyigit) for their assistance.

Kernel

We would like to acknowledge Brandon Azad, Brandon Azad of Google Project Zero, Daniel Roethlisberger of Swisscom CSIRT, Raz Mashat (@RazMashat) of Ilan Ramon High School for their assistance.

Entry updated September 17, 2019

Mail

We would like to acknowledge Craig Young of Tripwire VERT and Hanno Böck for their assistance.

Time Machine

We would like to acknowledge CodeColorist of Ant-Financial LightYear Labs for their assistance.

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