About the security content of Xcode 11.0

This document describes the security content of Xcode 11.0.

About Apple security updates

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Xcode 11.0

Released September 20, 2019

IDE SCM

Available for: macOS Mojave 10.14.4 and later

Impact: Multiple issues in libssh2

Description: Multiple issues were addressed by updating to version 2.16.

CVE-2019-3855: Chris Coulson

ld64

Available for: macOS Mojave 10.14.4 and later

Impact: Compiling code without proper input validation could lead to arbitrary code execution with user privilege

Description: Multiple issues in ld64 in the Xcode toolchains were addressed by updating to version ld64-507.4.

CVE-2019-8721: Pan ZhenPeng of Qihoo 360 Nirvan Team

CVE-2019-8722: Pan ZhenPeng of Qihoo 360 Nirvan Team

CVE-2019-8723: Pan ZhenPeng of Qihoo 360 Nirvan Team

CVE-2019-8724: Pan ZhenPeng of Qihoo 360 Nirvan Team

otool

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 state management.

CVE-2019-8738: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team

CVE-2019-8739: Pan ZhenPeng (@Peterpan0927) of Qihoo 360 Nirvan Team

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