Vulnerability Details : CVE-2021-4187
Potential exploit
vim is vulnerable to Use After Free
Vulnerability category: Memory Corruption
Products affected by CVE-2021-4187
- 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_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:security_update_2021-003:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:*:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-005:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-007:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-008:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2022-003:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:10.15.7:security_update_2022-004:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:vim:vim:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-4187
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 34 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-4187
| 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 | |
|
6.8
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:H |
1.3
|
5.5
|
huntr.dev | |
|
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-2021-4187
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Secondary)
- security@huntr.dev (Primary)
References for CVE-2021-4187
-
http://seclists.org/fulldisclosure/2022/Jul/14
Full Disclosure: APPLE-SA-2022-07-20-4 Security Update 2022-005 CatalinaMailing List;Third Party Advisory
-
https://huntr.dev/bounties/a8bee03a-6e2e-43bf-bee3-4968c5386a2e
Use After Free vulnerability found in vimExploit;Third Party Advisory
-
https://security.gentoo.org/glsa/202208-32
Vim, gVim: Multiple Vulnerabilities (GLSA 202208-32) — Gentoo securityThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2022/01/15/1
oss-security - Re: 3 new CVE's in vimMailing List;Third Party Advisory
-
https://support.apple.com/kb/HT213183
About the security content of macOS Monterey 12.3 - Apple SupportRelease Notes;Third Party Advisory
-
https://support.apple.com/kb/HT213343
About the security content of Security Update 2022-005 Catalina - Apple SupportThird Party Advisory
-
https://github.com/vim/vim/commit/4bf1006cae7e87259ccd5219128c3dba75774441
patch 8.2.3923: Vim9: double free with split argument list in nested … · vim/vim@4bf1006 · GitHubPatch;Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/Mar/29
Full Disclosure: APPLE-SA-2022-03-14-4 macOS Monterey 12.3Mailing List;Third Party Advisory
-
https://support.apple.com/kb/HT213256
About the security content of macOS Big Sur 11.6.6 - Apple SupportThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/
[SECURITY] Fedora 34 Update: vim-8.2.4068-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://seclists.org/fulldisclosure/2022/May/35
Full Disclosure: APPLE-SA-2022-05-16-3 macOS Big Sur 11.6.6Mailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/
[SECURITY] Fedora 35 Update: vim-8.2.4006-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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