CVE-2021-30916 Information

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 15.1 and iPadOS 15.1 macOS Monterey 12.0.1 iOS 14.8.1 and iPadOS 14.8.1 Security Update 2021-007 Catalina macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://support.apple.com/en-us/HT212868 https://support.apple.com/en-us/HT212869 https://support.apple.com/en-us/HT212867 https://support.apple.com/en-us/HT212871 https://support.apple.com/en-us/HT212872 https://support.apple.com/kb/HT212975 https://support.apple.com/kb/HT212980 http://seclists.org/fulldisclosure/2021/Dec/43 http://seclists.org/fulldisclosure/2021/Dec/44

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8