CVE-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 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 v3 5.9 MEDIUM
CVSS v2.0 4.3 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:apple:ipados::::::::
	cpe:2.3:o:apple:iphone_os::::::::
	cpe:2.3:o:apple:mac_os_x::::::::
	cpe:2.3:o:apple:mac_os_x::::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:-::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-003::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-004::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-005::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-006::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-007::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-001::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-002::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2021-003::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update::::::
	cpe:2.3:o:apple:mac_os_x:10.14.6:supplemental_update_2::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:-::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002::::::
	cpe:2.3:o:apple:mac_os_x:10.15.7:supplemental_update::::::
	cpe:2.3:o:apple:macos::::::::
	cpe:2.3:o:apple:tvos::::::::
	cpe:2.3:o:apple:watchos::::::::

History

21 Nov 2024, 05:45

Type	Values Removed	Values Added
References	~~() https://support.apple.com/en-us/HT212317 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212317 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT212323 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212323 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT212324 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212324 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT212325 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212325 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT212530 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212530 - Vendor Advisory
References	~~() https://support.apple.com/en-us/HT212531 - Vendor Advisory~~	() https://support.apple.com/en-us/HT212531 - Vendor Advisory

Information

Published : 2021-09-08 15:15

Updated : 2024-11-21 05:45

NVD link : CVE-2021-1884

Mitre link : CVE-2021-1884

CVE.ORG link : CVE-2021-1884

JSON object : View

Products Affected

apple

iphone_os
ipados
mac_os_x
macos
tvos
watchos

CWE

CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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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."}, {"lang": "es", "value": "Se abord\u00f3 una condici\u00f3n de carrera con un bloqueo mejorado. Este problema es corregido en Security Update 2021-004 Mojave, iOS versi\u00f3n 14.5 y iPadOS versi\u00f3n 14.5, watchOS versi\u00f3n 7.4, Security Update 2021-003 Catalina, tvOS versi\u00f3n 14.5, macOS Big Sur versi\u00f3n 11.3. Un atacante remoto puede ser capaz de causar una denegaci\u00f3n de servicio"}], "lastModified": "2024-11-21T05:45:17.543", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EAAE2C1-EF21-4567-99F1-335D1EF955D1", "versionEndExcluding": "14.5"}, {"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C1E12568-6F17-458F-8216-3D6DBC8F6DEE", "versionEndExcluding": "14.5"}, {"criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E76BECE-0843-4B9F-90DE-7690764701B0", "versionEndExcluding": "10.14.6", "versionStartIncluding": "10.14.0"}, {"criteria": "cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB8A73F8-3074-4B32-B9F6-343B6B1988C5", "versionEndExcluding": "10.15.7", "versionStartIncluding": "10.15"}, {"criteria": "cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*", 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5.9 /10

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3 /10

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

JSON object

Attach tags to CVE-2021-1884

5.9^/10

4.3^/10

Attach tags to `CVE-2021-1884`