About the security content of watchOS 4

This document describes the security content of watchOS 4.

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.

watchOS 4

Released September 19, 2017

CFNetwork Proxies

Available for: All Apple Watch models

Impact: An attacker in a privileged network position may be able to cause a denial of service

Description: Multiple denial of service issues were addressed through improved memory handling.

CVE-2017-7083: Abhinav Bansal of Zscaler Inc.

Entry added September 25, 2017

CoreAudio

Available for: All Apple Watch models

Impact: An application may be able to read restricted memory

Description: An out-of-bounds read was addressed by updating to Opus version 1.1.4.

CVE-2017-0381: V.E.O (@VYSEa) of Mobile Threat Research Team, Trend Micro

Entry added September 25, 2017

Kernel

Available for: All Apple Watch models

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-2017-7114: Alex Plaskett of MWR InfoSecurity

Entry added September 25, 2017

libc

Available for: All Apple Watch models

Impact: A remote attacker may be able to cause a denial-of-service

Description: A resource exhaustion issue in glob() was addressed through an improved algorithm.

CVE-2017-7086: Russ Cox of Google

Entry added September 25, 2017

libc

Available for: All Apple Watch models

Impact: An application may be able to cause a denial of service

Description: A memory consumption issue was addressed through improved memory handling.

CVE-2017-1000373

Entry added September 25, 2017

libexpat

Available for: All Apple Watch models

Impact: Multiple issues in expat

Description: Multiple issues were addressed by updating to version 2.2.1

CVE-2016-9063

CVE-2017-9233

Entry added September 25, 2017

Security

Available for: All Apple Watch models

Impact: A revoked certificate may be trusted

Description: A certificate validation issue existed in the handling of revocation data. This issue was addressed through improved validation.

CVE-2017-7080: an anonymous researcher, Sven Driemecker of adesso mobile solutions gmbh, an anonymous researcher, Rune Darrud (@theflyingcorpse) of Bærum kommune

Entry added September 25, 2017

SQLite

Available for: All Apple Watch models

Impact: Multiple issues in SQLite

Description: Multiple issues were addressed by updating to version 3.19.3.

CVE-2017-10989: found by OSS-Fuzz

CVE-2017-7128: found by OSS-Fuzz

CVE-2017-7129: found by OSS-Fuzz

CVE-2017-7130: found by OSS-Fuzz

Entry added September 25, 2017

SQLite

Available for: All Apple Watch models

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

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

CVE-2017-7127: an anonymous researcher

Entry added September 25, 2017

Wi-Fi

Available for: All Apple Watch models

Impact: Malicious code executing on the Wi-Fi chip may be able to execute arbitrary code with kernel privileges on the application processor

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

CVE-2017-7103: Gal Beniamini of Google Project Zero

CVE-2017-7105: Gal Beniamini of Google Project Zero

CVE-2017-7108: Gal Beniamini of Google Project Zero

CVE-2017-7110: Gal Beniamini of Google Project Zero

CVE-2017-7112: Gal Beniamini of Google Project Zero

Wi-Fi

Available for: All Apple Watch models

Impact: Malicious code executing on the Wi-Fi chip may be able to read restricted kernel memory

Description: A validation issue was addressed with improved input sanitization.

CVE-2017-7116: Gal Beniamini of Google Project Zero

zlib

Available for: All Apple Watch models

Impact: Multiple issues in zlib

Description: Multiple issues were addressed by updating to version 1.2.11.

CVE-2016-9840

CVE-2016-9841

CVE-2016-9842

CVE-2016-9843

Entry added September 25, 2017

Additional recognition

Security

We would like to acknowledge Abhinav Bansal of Zscaler, Inc. for their assistance.

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. Risks are inherent in the use of the Internet. Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners.

Published Date: