CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
66.7%
This document describes the security content of macOS Big Sur 11.6.3.
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.
Released January 26, 2022
Audio
Available for: macOS Big Sur
Impact: Parsing a maliciously crafted audio file may lead to disclosure of user information
Description: A buffer overflow issue was addressed with improved memory handling.
CVE-2021-30960: JunDong Xie of Ant Security Light-Year Lab
iCloud
Available for: macOS Big Sur
Impact: An application may be able to access a user’s files
Description: An issue existed within the path validation logic for symlinks. This issue was addressed with improved path sanitization.
CVE-2022-22585: Zhipeng Huo (@R3dF09) of Tencent Security Xuanwu Lab (https://xlab.tencent.com)
IOMobileFrameBuffer
Available for: macOS Big Sur
Impact: A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.
Description: A memory corruption issue was addressed with improved input validation.
CVE-2022-22587: an anonymous researcher, Meysam Firouzi (@R00tkitSMM) of MBition - Mercedes-Benz Innovation Lab, Siddharth Aeri (@b1n4r1b01)
Kernel
Available for: macOS Big Sur
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow issue was addressed with improved memory handling.
CVE-2022-22593: Peter Nguyễn Vũ Hoàng of STAR Labs
Model I/O
Available for: macOS Big Sur
Impact: Processing a maliciously crafted STL file may lead to unexpected application termination or arbitrary code execution
Description: An information disclosure issue was addressed with improved state management.
CVE-2022-22579: Mickey Jin (@patch1t) of Trend Micro
PackageKit
Available for: macOS Big Sur
Impact: An application may be able to access restricted files
Description: A permissions issue was addressed with improved validation.
CVE-2022-22583: Ron Hass (@ronhass7) of Perception Point, Mickey Jin (@patch1t)
Entry updated May 25, 2022
TCC
Available for: macOS Big Sur
Impact: A malicious application may be able to bypass certain Privacy preferences
Description: This issue was addressed with improved checks.
CVE-2021-30972: CVE-2021-30972: Xuxiang Yang (@another1024), Zhipeng Huo (@R3dF09) and Yuebin Sun (@yuebinsun2020) of Tencent Security Xuanwu Lab (xlab.tencent.com), Csaba Fitzl (@theevilbit) of Offensive Security, jhftss (@patch1t), Wojciech Reguła (@_r3ggi)
Entry updated May 25, 2022
Kernel
We would like to acknowledge Tao Huang for their assistance.
Metal
We would like to acknowledge Tao Huang for their assistance.
PackageKit
We would like to acknowledge Mickey Jin (@patch1t) of Trend Micro for their assistance.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.
Published Date: November 03, 2023
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
66.7%