About the security content of macOS Big Sur 11.7.3
This document describes the security content of macOS Big Sur 11.7.3.
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 11.7.3
AppleMobileFileIntegrity
Available for: macOS Big Sur
Impact: An app may be able to access user-sensitive data
Description: This issue was addressed by enabling hardened runtime.
CVE-2023-23499: Wojciech Reguła (@_r3ggi) of SecuRing (wojciechregula.blog)
curl
Available for: macOS Big Sur
Impact: Multiple issues in curl
Description: Multiple issues were addressed by updating to curl version 7.85.0.
CVE-2022-35252
dcerpc
Available for: macOS Big Sur
Impact: Mounting a maliciously crafted Samba network share may lead to arbitrary code execution
Description: A buffer overflow issue was addressed with improved memory handling.
CVE-2023-23513: Dimitrios Tatsis and Aleksandar Nikolic of Cisco Talos
Kernel
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-2023-23516: Jordy Zomer (@pwningsystems)
Available for: macOS Big Sur
Impact: An app may be able to access mail folder attachments through a temporary directory used during compression
Description: An access issue was addressed with improved access restrictions.
CVE-2022-42834: Wojciech Reguła (@_r3ggi) of SecuRing
PackageKit
Available for: macOS Big Sur
Impact: An app may be able to gain root privileges
Description: A logic issue was addressed with improved state management.
CVE-2023-23497: Mickey Jin (@patch1t)
Screen Time
Available for: macOS Big Sur
Impact: An app may be able to access information about a user’s contacts
Description: A privacy issue was addressed with improved private data redaction for log entries.
CVE-2023-23505: Wojciech Reguła of SecuRing (wojciechregula.blog) and Csaba Fitzl (@theevilbit) of Offensive Security
TCC
Available for: macOS Big Sur
Impact: An app may be able to access user-sensitive data
Description: This issue was addressed by removing the vulnerable code.
CVE-2023-27931: Mickey Jin (@patch1t)
WebKit
Available for: macOS Big Sur
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: The issue was addressed with improved memory handling.
CVE-2023-23518: YeongHyeon Choi (@hyeon101010), Hyeon Park (@tree_segment), SeOk JEON (@_seokjeon), YoungSung Ahn (@_ZeroSung), JunSeo Bae (@snakebjs0107), Dohyun Lee (@l33d0hyun) of Team ApplePIE
CVE-2023-23517: YeongHyeon Choi (@hyeon101010), Hyeon Park (@tree_segment), SeOk JEON (@_seokjeon), YoungSung Ahn (@_ZeroSung), JunSeo Bae (@snakebjs0107), Dohyun Lee (@l33d0hyun) of Team ApplePIE
Windows Installer
Available for: macOS Big Sur
Impact: An app may be able to bypass Privacy preferences
Description: The issue was addressed with improved memory handling.
CVE-2023-23508: Mickey Jin (@patch1t)
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