macOS Big Sur 11.2.1 Released

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What's new in the updates for macOS Big Sur

macOS Big Sur updates improve the stability, performance, or compatibility of your Mac and are recommended for all macOS Big Sur users.

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macOS Big Sur 11.2.1 addresses an issue that may prevent the battery from charging in some 2016 and 2017 MacBook Pro models.

About the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002

This document describes the security content of macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update, and macOS Mojave 10.14.6 Security Update 2021-002.

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macOS Big Sur 11.2.1, macOS Catalina 10.15.7 Supplemental Update*, macOS Mojave 10.14.6 Security Update 2021-002:

Intel Graphics Driver

Available for: macOS Big Sur 11.2, macOS Catalina 10.15.7

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-2021-1805: ABC Research s.r.o. working with Trend Micro Zero Day Initiative

Intel Graphics Driver

Available for: macOS Big Sur 11.2, macOS Catalina 10.15.7

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A race condition was addressed with additional validation.

CVE-2021-1806: ABC Research s.r.o. working with Trend Micro Zero Day Initiative

Sudo

Available for: macOS Big Sur 11.2, macOS Catalina 10.15.7, macOS Mojave 10.14.6

Impact: A local attacker may be able to elevate their privileges

Description: This issue was addressed by updating to sudo version 1.9.5p2.

CVE-2021-3156: Qualys

 

[Gandalf_The_Grey]

Apple fixes SUDO root privilege escalation flaw in macOS:

Apple has fixed a sudo vulnerability in macOS Big Sur, Catalina, and Mojave, allowing any local user to gain root-level privileges.

Last month, security researchers at Qualys disclosed the SUDO CVE-2021-3156 vulnerability, aka Baron Samedit, that allowed them to gain root privileges on multiple Linux distributions, including Debian, Ubuntu, and Fedora 33.

Hickey has confirmed with BleepingComputer that the latest Apple security updates fix the vulnerability and that Apple users should apply the update as soon possible.

"Everyone should apply this update as a priority as attackers have had over a week to work on their attacks. This update addresses the vulnerability which could be used to execute code with root privileges," Hickey told BleepingComputer.

In addition to the sudo fix, today's updates also fix two arbitrary code execution vulnerabilities in Intel graphics drivers.

Due to the severity of the vulnerabilities, it is strongly advised that macOS users install the security updates as soon as possible.

Apple fixes SUDO root privilege escalation flaw in macOS

Apple has fixed a sudo vulnerability in macOS Big Sur, Catalina, and Mojave, allowing any local user to gain root-level privileges.

www.bleepingcomputer.com