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AUSCERT External Security Bulletin Redistribution
ESB-2021.2492
Security Update 2021-005 Mojave
22 July 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Mojave
Publisher: Apple
Operating System: Mac OS
Impact/Access: Root Compromise -- Existing Account
Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Unauthorised Access -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-30805 CVE-2021-30799 CVE-2021-30796
CVE-2021-30793 CVE-2021-30790 CVE-2021-30788
CVE-2021-30787 CVE-2021-30783 CVE-2021-30782
CVE-2021-30781 CVE-2021-30780 CVE-2021-30777
CVE-2021-30766 CVE-2021-30765 CVE-2021-30760
CVE-2021-30759 CVE-2021-30733 CVE-2021-30703
CVE-2021-30677 CVE-2021-30672
Reference: ESB-2021.1797
ESB-2021.1796
ESB-2021.1794
Original Bulletin:
https://support.apple.com/HT212603
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APPLE-SA-2021-07-21-4 Security Update 2021-005 Mojave
Security Update 2021-005 Mojave addresses the following issues.
Information about the security content is also available at
https://support.apple.com/HT212603.
AMD Kernel
Available for: macOS Mojave
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-2021-30805: ABC Research s.r.o
AppKit
Available for: macOS Mojave
Impact: Opening a maliciously crafted file may lead to unexpected
application termination or arbitrary code execution
Description: An information disclosure issue was addressed by
removing the vulnerable code.
CVE-2021-30790: hjy79425575 working with Trend Micro Zero Day
Initiative
Audio
Available for: macOS Mojave
Impact: A local attacker may be able to cause unexpected application
termination or arbitrary code execution
Description: This issue was addressed with improved checks.
CVE-2021-30781: tr3e
Bluetooth
Available for: macOS Mojave
Impact: A malicious application may be able to gain root privileges
Description: A memory corruption issue was addressed with improved
state management.
CVE-2021-30672: say2 of ENKI
CoreStorage
Available for: macOS Mojave
Impact: A malicious application may be able to gain root privileges
Description: An injection issue was addressed with improved
validation.
CVE-2021-30777: Tim Michaud(@TimGMichaud) of Zoom Video
Communications and Gary Nield of ECSC Group plc
CoreText
Available for: macOS Mojave
Impact: Processing a maliciously crafted font may result in the
disclosure of process memory
Description: An out-of-bounds read was addressed with improved input
validation.
CVE-2021-30733: Sunglin from the Knownsec 404
CVMS
Available for: macOS Mojave
Impact: A malicious application may be able to gain root privileges
Description: An out-of-bounds write issue was addressed with improved
bounds checking.
CVE-2021-30780: Tim Michaud(@TimGMichaud) of Zoom Video
Communications
FontParser
Available for: macOS Mojave
Impact: Processing a maliciously crafted font file may lead to
arbitrary code execution
Description: An integer overflow was addressed through improved input
validation.
CVE-2021-30760: Sunglin of Knownsec 404 team
FontParser
Available for: macOS Mojave
Impact: Processing a maliciously crafted font file may lead to
arbitrary code execution
Description: A stack overflow was addressed with improved input
validation.
CVE-2021-30759: hjy79425575 working with Trend Micro Zero Day
Initiative
FontParser
Available for: macOS Mojave
Impact: Processing a maliciously crafted tiff file may lead to a
denial-of-service or potentially disclose memory contents
Description: This issue was addressed with improved checks.
CVE-2021-30788: tr3e working with Trend Micro Zero Day Initiative
Intel Graphics Driver
Available for: macOS Mojave
Impact: An application may be able to cause unexpected system
termination or write kernel memory
Description: This issue was addressed with improved checks.
CVE-2021-30787: Anonymous working with Trend Micro Zero Day
Initiative
Intel Graphics Driver
Available for: macOS Mojave
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: An out-of-bounds write was addressed with improved input
validation.
CVE-2021-30765: Liu Long of Ant Security Light-Year Lab
CVE-2021-30766: Liu Long of Ant Security Light-Year Lab
Kernel
Available for: macOS Mojave
Impact: An application may be able to execute arbitrary code with
kernel privileges
Description: A double free issue was addressed with improved memory
management.
CVE-2021-30703: an anonymous researcher
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-2021-30793: Zuozhi Fan (@pattern_F_) of Ant Security TianQiong
Lab
LaunchServices
Available for: macOS Mojave
Impact: A malicious application may be able to break out of its
sandbox
Description: This issue was addressed with improved environment
sanitization.
CVE-2021-30677: Ron Waisberg (@epsilan)
LaunchServices
Available for: macOS Mojave
Impact: A sandboxed process may be able to circumvent sandbox
restrictions
Description: An access issue was addressed with improved access
restrictions.
CVE-2021-30783: Ron Waisberg (@epsilan)
Model I/O
Available for: macOS Mojave
Impact: Processing a maliciously crafted image may lead to a denial
of service
Description: A logic issue was addressed with improved validation.
CVE-2021-30796: Mickey Jin (@patch1t) of Trend Micro
Sandbox
Available for: macOS Mojave
Impact: A malicious application may be able to access restricted
files
Description: This issue was addressed with improved checks.
CVE-2021-30782: Csaba Fitzl (@theevilbit) of Offensive Security
WebKit
Available for: macOS Mojave
Impact: Processing maliciously crafted web content may lead to
arbitrary code execution
Description: Multiple memory corruption issues were addressed with
improved memory handling.
CVE-2021-30799: Sergei Glazunov of Google Project Zero
Additional recognition
configd
We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive
Security for their assistance.
CoreServices
We would like to acknowledge Zhongcheng Li (CK01) for their
assistance.
CoreText
We would like to acknowledge Mickey Jin (@patch1t) of Trend Micro for
their assistance.
crontabs
We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive
Security for their assistance.
IOKit
We would like to acknowledge George Nosenko for their assistance.
Spotlight
We would like to acknowledge Csaba Fitzl (@theevilbit) of Offensive
Security for their assistance.
Installation note:
This update may be obtained from the Mac App Store or
Apple's Software Downloads web site:
https://support.apple.com/downloads/
Information will also be posted to the Apple Security Updates
web site: https://support.apple.com/kb/HT201222
This message is signed with Apple's Product Security PGP key,
and details are available at:
https://www.apple.com/support/security/pgp/
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The University of Queensland
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