About the security content of watchOS 6

This document describes the security content of watchOS 6.

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.

For more information about security, see the Apple Product Security page.

watchOS 6

Released September 19, 2019

CoreAudio

Available for: Apple Watch Series 3 and later

Impact: Processing a maliciously crafted movie may result in the disclosure of process memory

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

CVE-2019-8705: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative

Entry added October 8, 2019

Foundation

Available for: Apple Watch Series 3 and later

Impact: A remote attacker may be able to cause unexpected application termination or arbitrary code execution

Description: An out-of-bounds read was addressed with improved input validation.

CVE-2019-8641: Samuel Groß and Natalie Silvanovich of Google Project Zero

Kernel

Available for: Apple Watch Series 3 and later

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

Description: A memory corruption issue was addressed with improved memory handling.

CVE-2019-8717: Jann Horn of Google Project Zero

Entry added October 8, 2019

libxml2

Available for: Apple Watch Series 3 and later

Impact: Multiple issues in libxml2

Description: Multiple memory corruption issues were addressed with improved input validation.

CVE-2019-8749: found by OSS-Fuzz

CVE-2019-8756: found by OSS-Fuzz

Entry added October 8, 2019

UIFoundation

Available for: Apple Watch Series 3 and later

Impact: Processing a maliciously crafted text file may lead to arbitrary code execution

Description: A buffer overflow was addressed with improved bounds checking.

CVE-2019-8745: riusksk of VulWar Corp working with Trend Micro's Zero Day Initiative

Entry added October 8, 2019

Additional recognition

boringssl

We would like to acknowledge Thijs Alkemade (@xnyhps) of Computest for their assistance.

Entry added October 8, 2019

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