CVE-2021-1884

MEDIUM

iPadOS < 14.5 - Denial of Service via Race Condition

Title source: llm
STIX 2.1

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.

References (6)

Core 6
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212317
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212323
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212324
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212530
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212325
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212531

Scores

CVSS v3 5.9
EPSS 0.0157
EPSS Percentile 72.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-362
Status published
Products (8)
apple/ipados < 14.5
apple/iphone_os < 14.5
apple/mac_os_x 10.14.6 (19 CPE variants)
apple/mac_os_x 10.15.7 (8 CPE variants)
apple/mac_os_x 10.14.0 - 10.14.6
apple/macos 11.0 - 11.3
apple/tvos < 14.5
apple/watchos < 7.4
Published Sep 08, 2021
Tracked Since Feb 18, 2026