High severity · published Dec 1, 2021
CVE-2021-3984
vim is vulnerable to Heap-based Buffer Overflow
7.8
CVSS
1.6%
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)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
34 · source: NVD
VI
Vim · Vim
before 8.2.3625 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3984
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3984
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/15/1
Patch
https://github.com/vim/vim/commit/2de9b7c7c8791da8853a9a7ca9c467867465b655
Exploit
https://huntr.dev/bounties/b114b5a2-18e2-49f0-b350-15994d71426a
Mitigation
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00009.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
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