CVE-2021-30760 Information

Description

An integer overflow was addressed through improved input validation. This issue is fixed in iOS 14.7 macOS Big Sur 11.5 watchOS 7.6 tvOS 14.7 Security Update 2021-005 Mojave Security Update 2021-004 Catalina. Processing a maliciously crafted font 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/HT212604 https://support.apple.com/en-us/HT212605 https://support.apple.com/en-us/HT212602 https://support.apple.com/en-us/HT212603 https://support.apple.com/en-us/HT212600 https://support.apple.com/en-us/HT212601

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