CVE-2021-1884 Information

Description

A race condition was addressed with improved locking. This issue is fixed in Security Update 2021-004 Mojave iOS 14.5 and iPadOS 14.5 watchOS 7.4 Security Update 2021-003 Catalina tvOS 14.5 macOS Big Sur 11.3. A remote attacker may be able to cause a denial of service.

CVSS Vector

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

Reference

https://support.apple.com/en-us/HT212530 https://support.apple.com/en-us/HT212531 https://support.apple.com/en-us/HT212317 https://support.apple.com/en-us/HT212325 https://support.apple.com/en-us/HT212323 https://support.apple.com/en-us/HT212324

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9