This document describes the security content of Security Update 2021-006 Catalina.
For our customers' protection, Apple doesn't disclose, discuss or confirm security issues until an investigation has taken place 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.
XNU
Available for: macOS Catalina
Impact: A malicious application may be able to execute arbitrary code with kernel privileges. Apple is aware of reports that an exploit for this issue exists in the wild.
Description: a type confusion issue was addressed with improved state handling.
CVE-2021-30869: Erye Hernandez of Google Threat Analysis Group, Clément Lecigne of Google Threat Analysis Group, and Ian Beer of Google Project Zero