apple ipad-os CVE-2021-30900 vulnerability in Apple Products
Published on August 24, 2021

product logo product logo product logo
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.8.1 and iPadOS 14.8.1, iOS 15.1 and iPadOS 15.1. A malicious application may be able to execute arbitrary code with kernel privileges.

Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory Vendor Advisory NVD

Known Exploited Vulnerability

This Apple iOS, iPadOS, and macOS Out-of-Bounds Write Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Apple GPU drivers, included in iOS, iPadOS, and macOS, contain an out-of-bounds write vulnerability that may allow a malicious application to execute code with kernel privileges.

The following remediation steps are recommended / required by April 20, 2023: Apply updates per vendor instructions.

Vulnerability Analysis

CVE-2021-30900 is exploitable with local system access, requires user interaction. This vulnerability is considered to have a low attack complexity. It has an exploitability score of 1.8 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-2021-30900 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2021-30900

You can be notified by stack.watch whenever vulnerabilities like CVE-2021-30900 are published in these products:

Apple iPadOS
 
Apple iOS
 
Apple macOS
 
Apple iPadOS
 

What versions are vulnerable to CVE-2021-30900?