Apple Security Advisory 2019-10-29-2 - macOS Catalina 10.15.1, Security Update 2019-001 Mojave, Security Update 2019-006 High Sierra are now available and address code execution and denial of service vulnerabilities.
1208bac9afc5843ce93d2e878004b47aa3d3a9a09b26b4b5827df695939c9784
Apple Security Advisory 2019-10-29-10 - macOS Catalina 10.15 addresses buffer overflow, code execution, cross site scripting, denial of service, and resource exhaustion vulnerabilities.
b0db0d9f5babe0cc674768cef3438e5d2b4245d2a6fff643d9bfbb8d2906aa43