About the security content of Xcode 10.2 - Apple Support

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Xcode 10.2

Released March 25, 2019

Kernel

Available for: macOS High Sierra 10.13.6 or later

Impact: An application may be able to execute arbitrary code with kernel privileges

Description: A memory corruption issue was addressed with improved input validation.

CVE-2018-4461: Ian Beer of Google Project Zero