CVE-2022-42856 vulnerability in Apple Products
Published on December 15, 2022

A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. 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 against versions of iOS released before iOS 15.1..

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Known Exploited Vulnerability

This Apple iOS Type Confusion Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apple iOS contains a type confusion vulnerability when processing maliciously crafted web content leading to code execution.

The following remediation steps are recommended / required by January 4, 2023: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2022-42856 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 2.8 out of four. The potential impact of an exploit of this vulnerability is considered to be very high.

What is an Object Type Confusion Vulnerability?

The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

CVE-2022-42856 has been classified to as an Object Type Confusion vulnerability or weakness.

Products Associated with CVE-2022-42856

You can be notified by stack.watch whenever vulnerabilities like CVE-2022-42856 are published in these products:

Apple tvOS

Apple iPadOS

Apple iOS

Apple macOS

Apple Safari

What versions are vulnerable to CVE-2022-42856?