Apple Security Advisory 2020-1-28-2 - macOS Catalina 10.15.3, Security Update 2020-001 Mojave, and Security Update 2020-001 High Sierra are now available and address buffer overflow, bypass, and code execution vulnerabilities.
6dc59a831c4eeb00f22a91e88c410f4413de1117cf660dac3d76799ab2d9c97d