CVE-2021-1884
published 2021-09-08CVE-2021-1884: 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…
PriorityP428medium5.9CVSS 3.1
AVNACHPRNUINSUCNINAH
EPSS
1.62%
73.4th percentile
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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_14.5_and_ipados | — | — |
| apple | ios_and_ipados | >= unspecified < 14.5 | 14.5 |
| apple | ipados | < 14.5 | 14.5 |
| apple | iphone_os | < 14.5 | 14.5 |
| apple | mac_os_x | — | — |
| apple | mac_os_x | — | — |
| apple | mac_os_x | >= 10.14.0 < 10.14.6 | 10.14.6 |
| apple | mac_os_x | >= 10.15 < 10.15.7 | 10.15.7 |
| apple | macos | >= 11.0 < 11.3 | 11.3 |
| apple | macos | >= unspecified < 11.3 | 11.3 |
| apple | macos | >= unspecified < 2021 | 2021 |
| apple | macos_big_sur | — | — |
| apple | security_update_2021-003_catalina | — | — |
| apple | security_update_2021-004_mojave | — | — |
| apple | tvos | < 14.5 | 14.5 |
| apple | tvos | >= unspecified < 14.5 | 14.5 |
| apple | watchos | < 7.4 | 7.4 |
| apple | watchos | >= unspecified < 7.4 | 7.4 |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
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Apple
CVE-2021-1884: Security Update 2021-004 Mojave
vendor_apple·2021-05-24·CVSS 5.9
CVE-2021-1884 [MEDIUM] CVE-2021-1884: Security Update 2021-004 Mojave
Apple Security Update: About the security content of Security Update 2021-004 Mojave
Product: Security Update 2021-004 Mojave
CVE: CVE-2021-1884
Component: Heimdal
Impact: A remote attacker may be able to cause a denial of service
Description: A race condition was addressed with improved locking.
Apple
CVE-2021-1884: Security Update 2021-003 Catalina
vendor_apple·2021-05-24·CVSS 5.9
CVE-2021-1884 [MEDIUM] CVE-2021-1884: Security Update 2021-003 Catalina
Apple Security Update: About the security content of Security Update 2021-003 Catalina
Product: Security Update 2021-003 Catalina
CVE: CVE-2021-1884
Component: Heimdal
Impact: A remote attacker may be able to cause a denial of service
Description: A race condition was addressed with improved locking.
Apple
CVE-2021-1884: macOS Big Sur 11.3
vendor_apple·2021-04-26·CVSS 5.9
CVE-2021-1884 [MEDIUM] CVE-2021-1884: macOS Big Sur 11.3
Apple Security Update: About the security content of macOS Big Sur 11.3
Product: macOS Big Sur
Version: 11.3
CVE: CVE-2021-1884
Component: Heimdal
Impact: A remote attacker may be able to cause a denial of service
Description: A race condition was addressed with improved locking.
Apple
CVE-2021-1884: iOS 14.5 and iPadOS 14.5
vendor_apple·2021-04-26·CVSS 5.9
CVE-2021-1884 [MEDIUM] CVE-2021-1884: iOS 14.5 and iPadOS 14.5
Apple Security Update: About the security content of iOS 14.5 and iPadOS 14.5
Product: iOS 14.5 and iPadOS
Version: 14.5
CVE: CVE-2021-1884
Component: Heimdal
Impact: A remote attacker may be able to cause a denial of service
Description: A race condition was addressed with improved locking.
GHSA
GHSA-2v79-m39q-gmxx: A race condition was addressed with improved locking
ghsa_unreviewed·2022-05-24
CVE-2021-1884 [MEDIUM] CWE-362 GHSA-2v79-m39q-gmxx: A race condition was addressed with improved locking
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://support.apple.com/en-us/HT212317https://support.apple.com/en-us/HT212323https://support.apple.com/en-us/HT212324https://support.apple.com/en-us/HT212325https://support.apple.com/en-us/HT212530https://support.apple.com/en-us/HT212531https://support.apple.com/en-us/HT212317https://support.apple.com/en-us/HT212323https://support.apple.com/en-us/HT212324https://support.apple.com/en-us/HT212325https://support.apple.com/en-us/HT212530https://support.apple.com/en-us/HT212531
2021-09-08
Published