Vulnerability Details : CVE-2021-1875
A double free issue was addressed with improved memory management. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted file may lead to heap corruption.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-1875
- cpe:2.3:o:apple:mac_os_x:10.14.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.5:*:*:*:*:*:*:*
- 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_2019-006:*:*:*:*:*:*
- 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:10.15.7:-:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:*
- 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:10.15.7:security_update_2020:*:*:*:*:*:*
- 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:10.14.6: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:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.6:-:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.6:supplemental_update:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.4:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.4:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.5:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.6:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.14.4:beta4:*:*:*:*:*:*
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-1875
0.14%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 50 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-1875
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-1875
-
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-1875
-
https://support.apple.com/en-us/HT212317
About the security content of iOS 14.5 and iPadOS 14.5 - Apple SupportVendor Advisory
-
https://support.apple.com/en-us/HT212323
About the security content of tvOS 14.5 - Apple SupportVendor Advisory
-
https://support.apple.com/en-us/HT212327
About the security content of Security Update 2021-003 Mojave - Apple SupportVendor Advisory
-
https://support.apple.com/en-us/HT212326
About the security content of Security Update 2021-002 Catalina - Apple SupportVendor Advisory
-
https://support.apple.com/en-us/HT212325
About the security content of macOS Big Sur 11.3 - Apple SupportVendor Advisory
-
https://support.apple.com/en-us/HT212324
About the security content of watchOS 7.4 - Apple SupportVendor Advisory
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