macOS Big Sur 11.4 Patched a Ton of Security Flaws

Apple released new version of its operating systems and shared the security content for macOS Big Sur 11.4.
macOS 11.4
This is the longest page of security fixes I’ve seen from an OS update in a long time. I’ll share a few of the fixes here.
AppleScript

Available for: macOS Big Sur
Impact: A malicious application may bypass Gatekeeper checks
Description: A logic issue was addressed with improved state management.
CVE-2021-30669: Yair Hoffman

Core Services

Available for: macOS Big Sur
Impact: A malicious application may be able to gain root privileges
Description: A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks.
CVE-2021-30681: Zhongcheng Li (CK01)

Dock

Available for: macOS Big Sur
Impact: A malicious application may be able to access a user’s call history
Description: An access issue was addressed with improved access restrictions.
CVE-2021-30673: Josh Parnham (@joshparnham)

Kernel

Available for: macOS Big Sur
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A logic issue was addressed with improved validation.
CVE-2021-30740: Linus Henze (pinauten.de)

Tags: Mac, macOS, macOS Big Sur, Security