CVE-2021-30840 Information

Description

This issue was addressed with improved checks. This issue is fixed in tvOS 15 watchOS 8 iOS 15 and iPadOS 15. Processing a maliciously crafted dfont file may lead to arbitrary code execution.

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/HT212819 https://support.apple.com/en-us/HT212815 https://support.apple.com/en-us/HT212814 https://support.apple.com/kb/HT212869

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