About the security content of macOS Big Sur 11.7.3[2023-01/1]

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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

Released January 23, 2023

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

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)

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.

WebKit Bugzilla: 248268 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

WebKit Bugzilla: 248268 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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