CVE-2021-1884
Apple Security Advisory 2021-05-25-4
Severity Score
5.9
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
Se abordó una condición de carrera con un bloqueo mejorado. Este problema es corregido en Security Update 2021-004 Mojave, iOS versión 14.5 y iPadOS versión 14.5, watchOS versión 7.4, Security Update 2021-003 Catalina, tvOS versión 14.5, macOS Big Sur versión 11.3. Un atacante remoto puede ser capaz de causar una denegación de servicio
macOS Big Sur 11.3 addresses buffer overflow, bypass, code execution, cross site scripting, denial of service, double free, heap corruption, integer overflow, out of bounds read, out of bounds write, and use-after-free vulnerabilities.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-08 CVE Reserved
- 2021-04-28 CVE Published
- 2024-08-03 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
References (6)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://support.apple.com/en-us/HT212317 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212323 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212324 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212325 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212530 | 2023-01-09 | |
| https://support.apple.com/en-us/HT212531 | 2023-01-09 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apple Search vendor "Apple" | Ipados Search vendor "Apple" for product "Ipados" | < 14.5 Search vendor "Apple" for product "Ipados" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 14.5 Search vendor "Apple" for product "Iphone Os" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | >= 10.14.0 < 10.14.6 Search vendor "Apple" for product "Mac Os X" and version " >= 10.14.0 < 10.14.6" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | >= 10.15 < 10.15.7 Search vendor "Apple" for product "Mac Os X" and version " >= 10.15 < 10.15.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-002 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-004 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-005 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-006 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2019-007 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-002 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-003 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-004 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-005 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-006 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2020-007 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2021-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2021-002 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | security_update_2021-003 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | supplemental_update |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6" | supplemental_update_2 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020-005 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2020-007 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-001 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | security_update_2021-002 |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | 10.15.7 Search vendor "Apple" for product "Mac Os X" and version "10.15.7" | supplemental_update |
Affected
| ||||||
| Apple Search vendor "Apple" | Macos Search vendor "Apple" for product "Macos" | >= 11.0 < 11.3 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.3" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 14.5 Search vendor "Apple" for product "Tvos" and version " < 14.5" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 7.4 Search vendor "Apple" for product "Watchos" and version " < 7.4" | - |
Affected
| ||||||