Big Sur 11.2.1: Security Fixes and MacBook Charging issues

On the heels of the recent 11.2 release, Apple has pushed out Big Sur 11.2 that fixes a battery chargine issues in some of the first Thunderbolt 3 gen MacBook Pros. In addition, it fixes three security problems, all 3 are part of Catalina and Big Sur, only 1 is for Mojave. The one that affects all 3 could allow someone who has access to you Mac to exploit Sudo to get higher privileges that expected.

Full patch notes are below:

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

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

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