apple ipados CVE-2021-30665 vulnerability in Apple Products
Published on September 8, 2021

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A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. 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..

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Known Exploited Vulnerability

This Apple Safari Webkit Browser Engine Buffer Overflow Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. 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.

The following remediation steps are recommended / required by November 17, 2021: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-30665 can be exploited 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 a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2021-30665 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2021-30665

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-30665 are published in these products:

Apple iPad OS
 
Apple iOS
 
Apple Macos
 
Apple TV OS
 
Apple Watch OS
 

What versions are vulnerable to CVE-2021-30665?