About the security content of Security Update 2021-004 Mojave

: June 7, 2024
: Apple

Table of Contents

About the security content of Security Update 2021-004 Mojave

About the security content of Security Update 2021-004 Mojave

This document describes the security content of Security Update 2021-004 Mojave.

About Apple security updates

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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.

Security Update 2021-004 Mojave

Released May 24, 2021

AMD

Available for: macOS Mojave

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

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

CVE-2021-30676: shrek_wzw

AMD

Available for: macOS Mojave

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

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

CVE-2021-30678: Yu Wang of Didi Research America

apache

Available for: macOS Mojave

Impact: Multiple issues in apache

Description: Multiple issues in apache were addressed by updating apache to version 2.4.46.

CVE-2021-30690: an anonymous researcher

AppleScript

Available for: macOS Mojave

Impact: A malicious application may bypass Gatekeeper checks

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

CVE-2021-30669: Yair Hoffman

Core Services

Available for: macOS Mojave

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

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

CVE-2021-30681: Zhongcheng Li (CK01)

CVMS

Available for: macOS Mojave

Impact: A local attacker may be able to elevate their privileges

Description: This issue was addressed with improved checks.

CVE-2021-30724: Mickey Jin (@patch1t) of Trend Micro

Graphics Drivers

Available for: macOS Mojave

Impact: An out-of-bounds write issue was addressed with improved bounds checking

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

CVE-2021-30735: Jack Dates of RET2 Systems, Inc. (@ret2systems) working with Trend Micro Zero Day Initiative

Entry added July 21, 2021

Heimdal

Available for: macOS Mojave

Impact: A malicious application may cause a denial of service or potentially disclose memory contents

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

CVE-2021-30710: Gabe Kirkpatrick (@gabe_k)

Heimdal

Available for: macOS Mojave

Impact: A remote attacker may be able to cause a denial of service

Description: A race condition was addressed with improved locking.

CVE-2021-1884: Gabe Kirkpatrick (@gabe_k)

Heimdal

Available for: macOS Mojave

Impact: Processing maliciously crafted server messages may lead to heap corruption

Description: This issue was addressed with improved checks.

CVE-2021-1883: Gabe Kirkpatrick (@gabe_k)

Heimdal

Available for: macOS Mojave

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

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

CVE-2021-30697: Gabe Kirkpatrick (@gabe_k)

Heimdal

Available for: macOS Mojave

Impact: A malicious application could execute arbitrary code leading to compromise of user information

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

CVE-2021-30683: Gabe Kirkpatrick (@gabe_k)

ImageIO

Available for: macOS Mojave

Impact: Processing a maliciously crafted image may lead to disclosure of user information

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

CVE-2021-30687: Hou JingYi (@hjy79425575) of Qihoo 360

ImageIO

Available for: macOS Mojave

Impact: Processing a maliciously crafted ASTC file may disclose memory contents

Description: This issue was addressed with improved checks.

CVE-2021-30705: Ye Zhang of Baidu Security

Intel Graphics Driver

Available for: macOS Mojave

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

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

CVE-2021-30728: Liu Long of Ant Security Light-Year Lab

Intel Graphics Driver

Available for: macOS Mojave

Impact: An out-of-bounds write issue was addressed with improved bounds checking

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

CVE-2021-30726: Yinyi Wu (@3ndy1) of Qihoo 360 Vulcan Team

Entry added July 21, 2021

Kernel

Available for: macOS Mojave

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

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

CVE-2021-30704: an anonymous researcher

Kernel

Available for: macOS Mojave

Impact: A memory corruption issue was addressed with improved validation

Description: A local attacker may be able to elevate their privileges.

CVE-2021-30739: Zuozhi Fan (@patternF) of Ant Group Tianqiong Security Lab

Entry added July 21, 2021

Login Window

Available for: macOS Mojave

Impact: A person with physical access to a Mac may be able to bypass Login Window

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

CVE-2021-30702: Jewel Lambert of Original Spin, LLC.

Mail

Available for: macOS Mojave

Impact: A logic issue was addressed with improved state management

Description: An attacker in a privileged network position may be able to misrepresent application state.

CVE-2021-30696: Fabian Ising and Damian Poddebniak of Münster University of Applied Sciences

Entry added July 21, 2021

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may disclose memory contents

Description: An information disclosure issue was addressed with improved state management.

CVE-2021-30723: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30691: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30694: Mickey Jin (@patch1t) of Trend Micro

CVE-2021-30692: Mickey Jin (@patch1t) of Trend Micro

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may disclose memory contents

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

CVE-2021-30746: Mickey Jin (@patch1t) of Trend Micro

Model I/O

Available for: macOS Mojave

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

Description: A validation issue was addressed with improved logic.

CVE-2021-30693: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may disclose memory contents

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

CVE-2021-30695: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution

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

CVE-2021-30708: Mickey Jin (@patch1t) & Junzhi Lu (@pwn0rz) of Trend Micro

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may disclose memory contents

Description: This issue was addressed with improved checks.

CVE-2021-30709: Mickey Jin (@patch1t) of Trend Micro

Model I/O

Available for: macOS Mojave

Impact: Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution

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

CVE-2021-30725: Mickey Jin (@patch1t) of Trend Micro

NSOpenPanel

Available for: macOS Mojave

Impact: An application may be able to gain elevated privileges

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

CVE-2021-30679: Gabe Kirkpatrick (@gabe_k)

OpenLDAP

Available for: macOS Mojave

Impact: A remote attacker may be able to cause a denial of service

Description: This issue was addressed with improved checks.

CVE-2020-36226

CVE-2020-36229

CVE-2020-36225

CVE-2020-36224

CVE-2020-36223

CVE-2020-36227

CVE-2020-36228

CVE-2020-36221

CVE-2020-36222

CVE-2020-36230

PackageKit

Available for: macOS Mojave

Impact: An issue with path validation logic for hardlinks was addressed with improved path sanitization

Description: A malicious application may be able to overwrite arbitrary files.

CVE-2021-30738: Qingyang Chen of Topsec Alpha Team, Csaba Fitzl (@theevilbit) of Offensive Security

Entry added July 21, 2021

Security

Available for: macOS Mojave

Impact: A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code

Description: Processing a maliciously crafted certificate may lead to arbitrary code execution.

CVE-2021-30737: xerub

Entry added July 21, 2021

smbx

Available for: macOS Mojave

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

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

CVE-2021-30716: Aleksandar Nikolic of Cisco Talos

smbx

Available for: macOS Mojave

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

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

CVE-2021-30717: Aleksandar Nikolic of Cisco Talos

smbx

Available for: macOS Mojave

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

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

CVE-2021-30712: Aleksandar Nikolic of Cisco Talos

smbx

Available for: macOS Mojave

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

Description: A path handling issue was addressed with improved validation.

CVE-2021-30721: Aleksandar Nikolic of Cisco Talos

smbx

Available for: macOS Mojave

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

Description: An information disclosure issue was addressed with improved state management.

CVE-2021-30722: Aleksandar Nikolic of Cisco Talos

Additional recognition

CFString

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

CoreCapture

We would like to acknowledge Zuozhi Fan (@patternF) of Ant-financial TianQiong Security Lab for their assistance.

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Published Date: July 21, 2021