About the security content of watchOS 5.1.2

This document describes the security content of watchOS 5.1.2.

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watchOS 5.1.2

Released December 6, 2018

Airport

Available for: Apple Watch Series 1 and later

Impact: A malicious application may be able to elevate privileges

Description: A type confusion issue was addressed with improved memory handling.

CVE-2018-4303: Mohamed Ghannam (@_simo36)

Disk Images

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 memory handling.

CVE-2018-4427: Pangu Team

Kernel

Available for: Apple Watch Series 1 and later

Impact: An attacker in a privileged position may be able to perform a denial of service attack

Description: A denial of service issue was addressed by removing the vulnerable code.

CVE-2018-4460: Kevin Backhouse of Semmle Security Research Team

Kernel

Available for: Apple Watch Series 1 and later

Impact: A local user may be able to read kernel memory

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

CVE-2018-4431: An independent security researcher has reported this vulnerability to Beyond Security’s SecuriTeam Secure Disclosure program

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-2018-4447: Juwei Lin(@panicaII) and Zhengyu Dong of TrendMicro Mobile Security Team

Kernel

Available for: Apple Watch Series 1 and later

Impact: A malicious application may be able to elevate privileges

Description: A logic issue was addressed with improved restrictions.

CVE-2018-4435: Jann Horn of Google Project Zero, Juwei Lin(@panicaII) and Junzhi Lu of TrendMicro Mobile Security Team

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 input validation.

CVE-2018-4461: Ian Beer of Google Project Zero

LinkPresentation

Available for: Apple Watch Series 1 and later

Impact: Processing a maliciously crafted email may lead to user interface spoofing

Description: A spoofing issue existed in the handling of URLs. This issue was addressed with improved input validation.

CVE-2018-4429: Victor Le Pochat of imec-DistriNet, KU Leuven

Profiles

Available for: Apple Watch Series 1 and later

Impact: An untrusted configuration profile may be incorrectly displayed as verified

Description: A certificate validation issue existed in configuration profiles. This was addressed with additional checks.

CVE-2018-4436: James Seeley @Code4iOS, Joseph S. of Wyong High School

WebKit

Available for: Apple Watch Series 1 and later

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: Multiple memory corruption issues were addressed with improved memory handling.

CVE-2018-4437: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea

CVE-2018-4464: HyungSeok Han, DongHyeon Oh, and Sang Kil Cha of KAIST Softsec Lab, Korea

WebKit

Available for: Apple Watch Series 1 and later

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

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

CVE-2018-4441: lokihardt of Google Project Zero

CVE-2018-4442: lokihardt of Google Project Zero

CVE-2018-4443: lokihardt of Google Project Zero

WebKit

Available for: Apple Watch Series 1 and later

Impact: Processing maliciously crafted web content may lead to arbitrary code execution

Description: A logic issue existed resulting in memory corruption. This was addressed with improved state management.

CVE-2018-4438: lokihardt of Google Project Zero

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