An issue was discovered in certain Apple products. macOS before 10.12.6 is affected. The issue involves the "Audio" component. It allows remote attackers to obtain sensitive information from process memory or cause a denial of service (memory corruption) via a crafted audio file.
Apple Security Advisory 2017-07-19-2 - macOS 10.12.6 is now available and addresses code execution, memory corruption, and various other vulnerabilities.