About the security content of macOS Big Sur 11.7.7
This document describes the security content of macOS Big Sur 11.7.7.
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.
Apple security documents reference vulnerabilities by CVE-ID when possible.
For more information about security, see the Apple Product Security page.
macOS Big Sur 11.7.7
Released May 18, 2023
Accessibility
Available for: macOS Big Sur
Impact: An app may be able to bypass Privacy preferences
Description: A privacy issue was addressed with improved private data redaction for log entries.
CVE-2023-32388: Kirin (@Pwnrin)
AppleEvents
Available for: macOS Big Sur
Impact: An app may be able to bypass Privacy preferences
Description: This issue was addressed with improved redaction of sensitive information.
CVE-2023-28191: Mickey Jin (@patch1t)
AppleMobileFileIntegrity
Available for: macOS Big Sur
Impact: An app may be able to bypass Privacy preferences
Description: This issue was addressed with improved entitlements.
CVE-2023-32411: Mickey Jin (@patch1t)
AppleMobileFileIntegrity
Available for: macOS Big Sur
Impact: An app may be able to inject code into sensitive binaries bundled with Xcode
Description: This issue was addressed by forcing hardened runtime on the affected binaries at the system level.
CVE-2023-32383: James Duffy (mangoSecure)
Entry added December 21, 2023
Contacts
Available for: macOS Big Sur
Impact: An app may be able to observe unprotected user data
Description: A privacy issue was addressed with improved handling of temporary files.
CVE-2023-32386: Kirin (@Pwnrin)
CoreCapture
Available for: macOS Big Sur
Impact: An app may be able to execute arbitrary code with kernel privileges
Description: The issue was addressed with improved memory handling.
CVE-2023-28181: Tingting Yin of Tsinghua University
CUPS
Available for: macOS Big Sur
Impact: An unauthenticated user may be able to access recently printed documents
Description: An authentication issue was addressed with improved state management.
CVE-2023-32360: Gerhard Muth
dcerpc
Available for: macOS Big Sur
Impact: A remote attacker may be able to cause unexpected app termination or arbitrary code execution
Description: A use-after-free issue was addressed with improved memory management.
CVE-2023-32387: Dimitrios Tatsis of Cisco Talos
Dev Tools
Available for: macOS Big Sur
Impact: A sandboxed app may be able to collect system logs
Description: This issue was addressed with improved entitlements.
CVE-2023-27945: Mickey Jin (@patch1t)
GeoServices
Available for: macOS Big Sur
Impact: An app may be able to read sensitive location information
Description: A privacy issue was addressed with improved private data redaction for log entries.
CVE-2023-32392: Adam M.
Entry updated December 21, 2023
ImageIO
Available for: macOS Big Sur
Impact: Processing an image may lead to arbitrary code execution
Description: A buffer overflow was addressed with improved bounds checking.
CVE-2023-32384: Meysam Firouzi @R00tkitsmm working with Trend Micro Zero Day Initiative
IOSurface
Available for: macOS Big Sur
Impact: An app may be able to leak sensitive kernel state
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2023-32410: hou xuewei (@p1ay8y3ar) vmk msu
Kernel
Available for: macOS Big Sur
Impact: An app may be able to gain root privileges
Description: A race condition was addressed with improved state handling.
CVE-2023-32413: Eloi Benoist-Vanderbeken (@elvanderb) from Synacktiv (@Synacktiv) working with Trend Micro Zero Day Initiative
Kernel
Available for: macOS Big Sur
Impact: An app may be able to execute arbitrary code with kernel privileges
Description: A use-after-free issue was addressed with improved memory management.
CVE-2023-32398: Adam Doupé of ASU SEFCOM
LaunchServices
Available for: macOS Big Sur
Impact: An app may bypass Gatekeeper checks
Description: A logic issue was addressed with improved checks.
CVE-2023-32352: Wojciech Reguła (@_r3ggi) of SecuRing (wojciechregula.blog)
libxpc
Available for: macOS Big Sur
Impact: An app may be able to modify protected parts of the file system
Description: A logic issue was addressed with improved state management.
CVE-2023-32369: Jonathan Bar Or of Microsoft, Anurag Bohra of Microsoft, and Michael Pearse of Microsoft
libxpc
Available for: macOS Big Sur
Impact: An app may be able to gain root privileges
Description: A logic issue was addressed with improved checks.
CVE-2023-32405: Thijs Alkemade (@xnyhps) from Computest Sector 7
Metal
Available for: macOS Big Sur
Impact: An app may be able to bypass Privacy preferences
Description: A logic issue was addressed with improved state management.
CVE-2023-32407: Gergely Kalman (@gergely_kalman)
Model I/O
Available for: macOS Big Sur
Impact: Processing a 3D model may lead to arbitrary code execution
Description: An out-of-bounds write issue was addressed with improved bounds checking.
CVE-2023-32380: Mickey Jin (@patch1t)
Model I/O
Available for: macOS Big Sur
Impact: Processing a 3D model may result in disclosure of process memory
Description: An out-of-bounds read was addressed with improved input validation.
CVE-2023-32382: Mickey Jin (@patch1t)
NetworkExtension
Available for: macOS Big Sur
Impact: An app may be able to read sensitive location information
Description: This issue was addressed with improved redaction of sensitive information.
CVE-2023-32403: Adam M.
Entry updated December 21, 2023
PackageKit
Available for: macOS Big Sur
Impact: An app may be able to modify protected parts of the file system
Description: A logic issue was addressed with improved state management.
CVE-2023-32355: Mickey Jin (@patch1t)
Perl
Available for: macOS Big Sur
Impact: An app may be able to modify protected parts of the file system
Description: A logic issue was addressed with improved state management.
CVE-2023-32395: Arsenii Kostromin (0x3c3e)
Quick Look
Available for: macOS Big Sur
Impact: Parsing an office document may lead to an unexpected app termination or arbitrary code execution
Description: A buffer overflow was addressed with improved bounds checking.
CVE-2023-32401: Holger Fuhrmannek of Deutsche Telekom Security GmbH on behalf of BSI (German Federal Office for Information Security)
Entry added December 21, 2023
Sandbox
Available for: macOS Big Sur
Impact: An app may be able to retain access to system configuration files even after its permission is revoked
Description: An authorization issue was addressed with improved state management.
CVE-2023-32357: Yiğit Can YILMAZ (@yilmazcanyigit), Jeff Johnson, Koh M. Nakagawa of FFRI Security, Inc., Kirin (@Pwnrin), and Csaba Fitzl (@theevilbit) of Offensive Security
Shell
Available for: macOS Big Sur
Impact: An app may be able to modify protected parts of the file system
Description: A logic issue was addressed with improved state management.
CVE-2023-32397: Arsenii Kostromin (0x3c3e)
Telephony
Available for: macOS Big Sur
Impact: A remote attacker may be able to cause unexpected app termination or arbitrary code execution
Description: A use-after-free issue was addressed with improved memory management.
CVE-2023-32412: Ivan Fratric of Google Project Zero
Additional recognition
libxml2
We would like to acknowledge OSS-Fuzz, Ned Williamson of Google Project Zero for their assistance.
Reminders
We would like to acknowledge Kirin (@Pwnrin) for their assistance.
Security
We would like to acknowledge James Duffy (mangoSecure) for their assistance.
Wi-Fi
We would like to acknowledge Adam M. for their assistance.
Entry updated December 21, 2023
Wi-Fi Connectivity
We would like to acknowledge Adam M. for their assistance.
Entry updated December 21, 2023
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