CVE-2021-30818 Information

Description

A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8 tvOS 15 iOS 15 and iPadOS 15 Safari 15 watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212819 https://support.apple.com/en-us/HT212807 https://support.apple.com/en-us/HT212815 https://support.apple.com/en-us/HT212816 https://support.apple.com/en-us/HT212814 https://support.apple.com/kb/HT212869 http://www.openwall.com/lists/oss-security/2021/12/20/6

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

8.8