About the security content of watchOS 4.2.3

This document describes the security content of watchOS 4.2.3.

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watchOS 4.2.3

Released February 19, 2018

CoreText

Available for: All Apple Watch models

Impact: Processing a maliciously crafted string may lead to heap corruption

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

CVE-2018-4124: an anonymous researcher

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