About the security content of Xcode 9.3

This document describes the security content of Xcode 9.3.

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.

For more information about security, see the Apple Product Security page. You can encrypt communications with Apple using the Apple Product Security PGP Key.

Apple security documents reference vulnerabilities by CVE-ID when possible.

Xcode 9.3

Released March 29, 2018

LLVM

Available for: macOS High Sierra 10.13.2 or later

Impact: Multiple issues in llvm were addressed in this update

Description: Multiple issues were addressed by updating to version the current version of LLVM shipping with Xcode.

CVE-2018-4164: found by OSS-Fuzz

Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.

Published Date: