About the security content of iOS 16.4.1 and iPadOS 16.4.1

This document describes the security content of iOS 16.4.1 and iPadOS 16.4.1.

About Apple security updates

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Apple security documents reference vulnerabilities by CVE-ID when possible.

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iOS 16.4.1 and iPadOS 16.4.1

Released April 7, 2023

IOSurfaceAccelerator

Available for: iPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generation and later

Impact: An app may be able to execute arbitrary code with kernel privileges. Apple is aware of a report that this issue may have been actively exploited.

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

CVE-2023-28206: Clément Lecigne of Google’s Threat Analysis Group and Donncha Ó Cearbhaill of Amnesty International’s Security Lab

WebKit

Available for: iPhone 8 and later, iPad Pro (all models), iPad Air 3rd generation and later, iPad 5th generation and later, and iPad mini 5th generation and later

Impact: Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

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

WebKit Bugzilla: 254797

CVE-2023-28205: Clément Lecigne of Google’s Threat Analysis Group and Donncha Ó Cearbhaill of Amnesty International’s Security Lab

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Published Date: October 31, 2023