High severity · published Dec 27, 2021
CVE-2021-4173
vim is vulnerable to Use After Free
7.8
CVSS
1.7%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MA
macOS · Apple
before 12.3; 11.0 before 11.6.6; 10.15.7 · source: NVD
FE
Fedora · Fedoraproject
34; 35 · source: NVD
MO
Mac OS X · Apple
10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; +7 more · source: NVD
VI
Vim · Vim
before 8.2.3902 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4173
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4173
Mailing List
http://seclists.org/fulldisclosure/2022/Jul/14
Mailing List
http://seclists.org/fulldisclosure/2022/Mar/29
Mailing List
http://seclists.org/fulldisclosure/2022/May/35
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/15/1
Patch
https://github.com/vim/vim/commit/9c23f9bb5fe435b28245ba8ac65aa0ca6b902c04
Exploit
https://huntr.dev/bounties/a1b236b9-89fb-4ccf-9689-ba11b471e766
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