About Apple security updates
For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.
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Released October 31, 2019
Available for: macOS Mojave 10.14.4 and later
Impact: Processing a maliciously crafted file may lead to arbitrary code execution
Description: A memory corruption issue was addressed with improved validation.
CVE-2019-8800: Pan ZhenPeng of Qihoo 360 Nirvan Team
CVE-2019-8806: Pan ZhenPeng of Qihoo 360 Nirvan Team