About the security content of watchOS 6.2.8

This document describes the security content of watchOS 6.2.8.

About Apple security updates

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watchOS 6.2.8

Released July 15, 2020

Audio

Available for: Apple Watch Series 1 and later

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

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2020-9884: Yu Zhou(@yuzhou6666) of 小鸡帮 working with Trend Micro Zero Day Initiative

CVE-2020-9889: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

Entry updated July 28, 2020

Audio

Available for: Apple Watch Series 1 and later

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

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

CVE-2020-9888: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

CVE-2020-9890: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

CVE-2020-9891: JunDong Xie and XingWei Li of Ant-financial Light-Year Security Lab

CoreGraphics

Available for: Apple Watch Series 1 and later

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

Description: A buffer overflow issue was addressed with improved memory handling.

CVE-2020-9883: Mickey Jin of Trend Micro

Entry added July 28, 2020

Crash Reporter

Available for: Apple Watch Series 1 and later

Impact: A malicious application may be able to break out of its sandbox

Description: A memory corruption issue was addressed by removing the vulnerable code.

CVE-2020-9865: Zhuo Liang of Qihoo 360 Vulcan Team working with 360 BugCloud

GeoServices

Available for: Apple Watch Series 1 and later

Impact: A malicious application may be able to read sensitive location information

Description: An authorization issue was addressed with improved state management.

CVE-2020-9933: Min (Spark) Zheng and Xiaolong Bai of Alibaba Inc.

ImageIO

Available for: Apple Watch Series 1 and later

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

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2020-9872: Xingwei Lin of Ant-financial Light-Year Security Lab

CVE-2020-9936: Mickey Jin of Trend Micro

Entry updated July 28, 2020

ImageIO

Available for: Apple Watch Series 1 and later

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

Description: A buffer overflow issue was addressed with improved memory handling.

CVE-2020-9919:  Mickey Jin of Trend Micro

Entry added July 28, 2020

ImageIO

Available for: Apple Watch Series 1 and later

Impact: Opening a maliciously crafted PDF file may lead to an unexpected application termination or arbitrary code execution

Description: An out-of-bounds write issue was addressed with improved bounds checking.

CVE-2020-9876: Mickey Jin of Trend Micro

Entry added July 28, 2020

ImageIO

Available for: Apple Watch Series 1 and later

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

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

CVE-2020-9873: Xingwei Lin of Ant-financial Light-Year Security Lab

CVE-2020-9938: Xingwei Lin of Ant-financial Light-Year Security Lab

Entry added July 28, 2020

Kernel

Available for: Apple Watch Series 1 and later

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

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

CVE-2020-9923: Proteas

Kernel

Available for: Apple Watch Series 1 and later

Impact: An attacker that has already achieved kernel code execution may be able to bypass kernel memory mitigations

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

CVE-2020-9909: Brandon Azad of Google Project Zero

Kernel

Available for: Apple Watch Series 1 and later

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

Description: A memory corruption issue was addressed with improved state management.

CVE-2020-9904: Tielei Wang of Pangu Lab

Entry added July 28, 2020

Kernel

Available for: Apple Watch Series 1 and later

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

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

CVE-2020-9863: an anonymous researcher

Entry added July 28, 2020

Mail

Available for: Apple Watch Series 1 and later

Impact: A malicious mail server may overwrite arbitrary mail files

Description: A path handling issue was addressed with improved validation.

CVE-2020-9920: YongYue Wang AKA BigChan of Hillstone Networks AF Team

Entry added July 28, 2020

Messages

Available for: Apple Watch Series 1 and later

Impact: A user that is removed from an iMessage group could rejoin the group

Description: An issue existed in the handling of iMessage tapbacks. The issue was resolved with additional verification.

CVE-2020-9885: an anonymous researcher, Suryansh Mansharamani, of WWP High School North (medium.com/@suryanshmansha)

Security

Available for: Apple Watch Series 1 and later

Impact: An attacker may have been able to impersonate a trusted website using shared key material for an administrator added certificate

Description: A certificate validation issue existed when processing administrator added certificates. This issue was addressed with improved certificate validation.

CVE-2020-9868: Brian Wolff of Asana

Entry added July 28, 2020

WebKit

Available for: Apple Watch Series 1 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-2020-9894: 0011 working with Trend Micro Zero Day Initiative

WebKit

Available for: Apple Watch Series 1 and later

Impact: Processing maliciously crafted web content may prevent Content Security Policy from being enforced

Description: An access issue existed in Content Security Policy.  This issue was addressed with improved access restrictions.

CVE-2020-9915: Ayoub AIT ELMOKHTAR of Noon

Entry updated July 28, 2020

WebKit

Available for: Apple Watch Series 1 and later

Impact: Processing maliciously crafted web content may lead to universal cross site scripting

Description: A logic issue was addressed with improved state management.

CVE-2020-9925: an anonymous researcher

WebKit

Available for: Apple Watch Series 1 and later

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

Description: A use after free issue was addressed with improved memory management.

CVE-2020-9893: 0011 working with Trend Micro Zero Day Initiative

CVE-2020-9895: Wen Xu of SSLab, Georgia Tech

WebKit

Available for: Apple Watch Series 1 and later

Impact: A malicious attacker with arbitrary read and write capability may be able to bypass Pointer Authentication

Description: Multiple issues were addressed with improved logic.

CVE-2020-9910: Samuel Groß of Google Project Zero

WebKit Page Loading

Available for: Apple Watch Series 1 and later

Impact: A malicious attacker may be able to conceal the destination of a URL

Description: A URL Unicode encoding issue was addressed with improved state management.

CVE-2020-9916: Rakesh Mane (@RakeshMane10)

WebKit Web Inspector

Available for: Apple Watch Series 1 and later

Impact: Copying a URL from Web Inspector may lead to command injection

Description: A command injection issue existed in Web Inspector. This issue was addressed with improved escaping.

CVE-2020-9862: Ophir Lojkine (@lovasoa)

Wi-Fi

Available for: Apple Watch Series 1 and later

Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

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

CVE-2020-9918: Jianjun Dai of 360 Alpha Lab working with 360 BugCloud (bugcloud.360.cn)

Wi-Fi

Available for: Apple Watch Series 1 and later

Impact: A remote attacker may be able to cause unexpected system termination or corrupt kernel memory

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

CVE-2020-9906: Ian Beer of Google Project Zero

Entry added July 28, 2020

Additional recognition

Kernel

We would like to acknowledge Brandon Azad of Google Project Zero for their assistance.

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