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.
Apple security documents reference vulnerabilities by CVE-ID when possible.
Released February 13, 2017
Available for: OS X Yosemite v10.10 and later
Impact: Opening a maliciously crafted GarageBand project file may lead to arbitrary code execution
Description: A memory corruption issue was addressed through improved memory handling.
CVE-2017-2374: Tyler Bohan of Cisco Talos