About the security content of macOS Mojave 10.14.1, Security Update 2018-002 High Sierra, Security Update 2018-005 Sierra

This document describes the security content of macOS Mojave 10.14.1, Security Update 2018-002 High Sierra, Security Update 2018-005 Sierra.

About Apple security updates

For our customers’ protection, Apple doesn’t disclose, discuss or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.

Apple security documents reference vulnerabilities by CVE-ID when possible.

macOS Mojave 10.14.1, Security Update 2018-002 High Sierra, Security Update 2018-005 Sierra

afpserver

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A remote attacker may be able to attack AFP servers through HTTP clients

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

CVE-2018-4295: Jianjun Chen (@whucjj) from Tsinghua University and UC Berkeley

AppleGraphicsControl

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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

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

CVE-2018-4410: an anonymous researcher working with Trend Micro's Zero Day Initiative

AppleGraphicsControl

Available for: 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-2018-4417: Lee of the Information Security Lab Yonsei University working with Trend Micro's Zero Day Initiative

APR

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: Multiple buffer overflow issues existed in Perl

Description: Multiple issues in Perl were addressed with improved memory handling.

CVE-2017-12613: Craig Young of Tripwire VERT

CVE-2017-12618: Craig Young of Tripwire VERT

ATS

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A malicious application may be able to elevate privileges

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

CVE-2018-4411: lilang wu moony Li of Trend Micro working with Trend Micro's Zero Day Initiative

ATS

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: An application may be able to read restricted memory

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

CVE-2018-4308: Mohamed Ghannam (@_simo36)

Automator

Available for: macOS Mojave 10.14

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

Description: This issue was addressed by removing additional entitlements.

CVE-2018-4468: Jeff Johnson of underpassapp.com

CFNetwork

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4126: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative

CoreAnimation

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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-2018-4415: Liang Zhuo working with Beyond Security’s SecuriTeam Secure Disclosure

CoreCrypto

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: An attacker may be able to exploit a weakness in the Miller-Rabin primality test to incorrectly identify prime numbers

Description: An issue existed in the method for determining prime numbers. This issue was addressed by using pseudorandom bases for testing of primes.

CVE-2018-4398: Martin Albrecht, Jake Massimo and Kenny Paterson of Royal Holloway, University of London, and Juraj Somorovsky of Ruhr University, Bochum

CoreFoundation

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A malicious application may be able to elevate privileges

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

CVE-2018-4412: The UK's National Cyber Security Centre (NCSC)

CUPS

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: In certain configurations, a remote attacker may be able to replace the message content from the print server with arbitrary content

Description: An injection issue was addressed with improved validation.

CVE-2018-4153: Michael Hanselmann of hansmi.ch

CUPS

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4406: Michael Hanselmann of hansmi.ch

Dictionary

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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

Description: A validation issue existed which allowed local file access. This was addressed with input sanitisation.

CVE-2018-4346: Wojciech Reguła (@_r3ggi) of SecuRing

Dock

Available for: macOS Mojave 10.14

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

Description: This issue was addressed by removing additional entitlements.

CVE-2018-4403: Patrick Wardle of Digita Security

dyld

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14, macOS Sierra 10.12.6

Impact: A malicious application may be able to elevate privileges

Description: A logic issue was addressed with improved validation.

CVE-2018-4423: Youfu Zhang of Chaitin Security Research Lab (@ChaitinTech)

EFI

Available for: macOS High Sierra 10.13.6

Impact: Systems with microprocessors utilising speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorised disclosure of information to an attacker with local user access via a side-channel analysis

Description: An information disclosure issue was addressed with a microcode update. This ensures that older data read from recently-written-to addresses cannot be read via a speculative side-channel.

CVE-2018-3639: Jann Horn (@tehjh) of Google Project Zero (GPZ), Ken Johnson of the Microsoft Security Response Center (MSRC)

EFI

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: A local user may be able to modify protected parts of the file system

Description: A configuration issue was addressed with additional restrictions.

CVE-2018-4342: Timothy Perfitt of Twocanoes Software

Foundation

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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

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

CVE-2018-4304: jianan.huang (@Sevck)

Grand Central Dispatch

Available for: macOS High Sierra 10.13.6

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-2018-4426: Brandon Azad

Heimdal

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4331: Brandon Azad

Hypervisor

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: Systems with microprocessors utilising speculative execution and address translations may allow unauthorised disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis

Description: An information disclosure issue was addressed by flushing the L1 data cache at the virtual machine entry.

CVE-2018-3646: Baris Kasikci, Daniel Genkin, Ofir Weisse, and Thomas F. Wenisch of University of Michigan, Mark Silberstein and Marina Minkin of Technion, Raoul Strackx, Jo Van Bulck, and Frank Piessens of KU Leuven, Rodrigo Branco, Henrique Kawakami, Ke Sun, and Kekai Hu of Intel Corporation, Yuval Yarom of The University of Adelaide

Hypervisor

Available for: macOS Sierra 10.12.6

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

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

CVE-2018-4242: Zhuo Liang of Qihoo 360 Nirvan Team

ICU

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14, macOS Sierra 10.12.6

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

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

CVE-2018-4394: Erik Verbruggen of The Qt Company

Intel Graphics Driver

Available for: macOS Sierra 10.12.6

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-2018-4334: Ian Beer of Google Project Zero

Intel Graphics Driver

Available for: 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-2018-4396: Yu Wang of Didi Research America

CVE-2018-4418: Yu Wang of Didi Research America

Intel Graphics Driver

Available for: macOS High Sierra 10.13.6

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

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

CVE-2018-4350: Yu Wang of Didi Research America

Intel Graphics Driver

Available for: macOS Mojave 10.14

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

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

CVE-2018-4421: Tyler Bohan of Cisco Talos

IOGraphics

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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-2018-4422: an anonymous researcher working with Trend Micro's Zero Day Initiative

IOHIDFamily

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4408: Ian Beer of Google Project Zero

IOKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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-2018-4402: Proteas of Qihoo 360 Nirvan Team

IOKit

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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

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

CVE-2018-4341: Ian Beer of Google Project Zero

CVE-2018-4354: Ian Beer of Google Project Zero

IOUserEthernet

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4401: Apple

IPSec

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: An application may be able to gain elevated privileges

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

CVE-2018-4371: Tim Michaud (@TimGMichaud) of Leviathan Security Group

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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

Description: A memory corruption issue was addressed by removing the vulnerable code.

CVE-2018-4420: Mohamed Ghannam (@_simo36)

Kernel

Available for: macOS High Sierra 10.13.6

Impact: A malicious application may be able to leak sensitive user information

Description: An access issue existed with privileged API calls. This issue was addressed with additional restrictions.

CVE-2018-4399: Fabiano Anemone (@anoane)

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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-2018-4340: Mohamed Ghannam (@_simo36)

CVE-2018-4419: Mohamed Ghannam (@_simo36)

CVE-2018-4425: cc working with Trend Micro's Zero Day Initiative, Juwei Lin (@panicaII) of Trend Micro working with Trend Micro's Zero Day Initiative

Kernel

Available for: macOS Sierra 10.12.6

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

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2018-4259: Kevin Backhouse of Semmle and LGTM.com

CVE-2018-4286: Kevin Backhouse of Semmle and LGTM.com

CVE-2018-4287: Kevin Backhouse of Semmle and LGTM.com

CVE-2018-4288: Kevin Backhouse of Semmle and LGTM.com

CVE-2018-4291: Kevin Backhouse of Semmle and LGTM.com

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: An application may be able to read restricted memory

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

CVE-2018-4413: Juwei Lin (@panicaII) of TrendMicro Mobile Security Team

Kernel

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: An attacker in a privileged network position may be able to execute arbitrary code

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

CVE-2018-4407: Kevin Backhouse of Semmle Ltd.

Kernel

Available for: macOS Mojave 10.14

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

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

CVE-2018-4424: Dr. Silvio Cesare of InfoSect

LinkPresentation

Available for: macOS Sierra 10.12.6

Impact: Processing a maliciously crafted text message may lead to UI spoofing

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

CVE-2018-4187: Roman Mueller (@faker_), Zhiyang Zeng (@Wester) of Tencent Security Platform Department

Login Window

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A local user may be able to cause a denial of service

Description: A validation issue was addressed with improved logic.

CVE-2018-4348: Ken Gannon of MWR InfoSecurity and Christian Demko of MWR InfoSecurity

Mail

Available for: macOS Mojave 10.14

Impact: Processing a maliciously crafted mail message may lead to UI spoofing

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

CVE-2018-4389: Dropbox Offensive Security Team, Theodor Ragnar Gislason of Syndis

mDNSOffloadUserClient

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4326: an anonymous researcher working with Trend Micro's Zero Day Initiative, Zhuo Liang of Qihoo 360 Nirvan Team

MediaRemote

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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

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

CVE-2018-4310: CodeColorist of Ant-Financial LightYear Labs

Microcode

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: Systems with microprocessors utilising speculative execution and that perform speculative reads of system registers may allow unauthorised disclosure of system parameters to an attacker with local user access via a side-channel analysis

Description: An information disclosure issue was addressed with a microcode update. This ensures that implementation specific system registers cannot be leaked via a speculative execution side-channel.

CVE-2018-3640: Innokentiy Sennovskiy from BiZone LLC (bi.zone), Zdenek Sojka, Rudolf Marek and Alex Zuepke from SYSGO AG (sysgo.com)

NetworkExtension

Available for: macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: Connecting to a VPN server may leak DNS queries to a DNS proxy

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

CVE-2018-4369: an anonymous researcher

Perl

Available for: macOS Sierra 10.12.6

Impact: Multiple buffer overflow issues existed in Perl

Description: Multiple issues in Perl were addressed with improved memory handling.

CVE-2018-6797: Brian Carpenter

Ruby

Available for: macOS Sierra 10.12.6

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

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

CVE-2017-0898

CVE-2017-10784

CVE-2017-14033

CVE-2017-14064

CVE-2017-17405

CVE-2017-17742

CVE-2018-6914

CVE-2018-8777

CVE-2018-8778

CVE-2018-8779

CVE-2018-8780

Security

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

Impact: Processing a maliciously crafted S/MIME signed message may lead to a denial of service

Description: A validation issue was addressed with improved logic.

CVE-2018-4400: Yukinobu Nagayasu of LAC Co., Ltd.

Security

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: A local user may be able to cause a denial of service

Description: This issue was addressed with improved checks.

CVE-2018-4395: Patrick Wardle of Digita Security

Spotlight

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

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-2018-4393: Lufeng Li

Symptom Framework

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6

Impact: An application may be able to read restricted memory

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

CVE-2018-4203: Bruno Keith (@bkth_) working with Trend Micro's Zero Day Initiative

Wi-Fi

Available for: macOS Sierra 10.12.6, macOS High Sierra 10.13.6, macOS Mojave 10.14

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-2018-4368: Milan Stute and Alex Mariotto of Secure Mobile Networking Lab at Technische Universität Darmstadt

Additional recognition

Calendar

We would like to acknowledge Matthew Thomas of Verisign for their assistance.

coreTLS

We would like to acknowledge Eyal Ronen (Weizmann Institute), Robert Gillham (University of Adelaide), Daniel Genkin (University of Michigan), Adi Shamir (Weizmann Institute), David Wong (NCC Group) and Yuval Yarom (University of Adelaide and Data61) for their assistance.

iBooks

We would like to acknowledge Sem Voigtländer of Fontys Hogeschool ICT for their assistance.

Kernel

We would like to acknowledge Brandon Azad for their assistance.

LaunchServices

We would like to acknowledge Alok Menghrajani of Square for their assistance.

Quick Look

We would like to acknowledge lokihardt of Google Project Zero for their assistance.

Security

We would like to acknowledge Marinos Bernitsas of Parachute for their assistance.

Terminal

We would like to acknowledge Federico Bento for their assistance.

Time Machine

We would like to acknowledge Matthew Thomas of Verisign for their assistance.