High severity · published Nov 19, 2021
CVE-2021-3968
Heap-based Buffer Overflow in vim/vim
8.0
CVSS
2.2%
EPSS
No
On KEV
Description
vim is vulnerable to Heap-based Buffer Overflow
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.2% · higher than 83% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
VI
vim/vim · vim
before 8.2.3610 · source: vendor
FE
Fedora · Fedoraproject
34; 35 · source: NVD
VI
Vim · Vim
8.2.3430 before 8.2.3610 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3968
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3968
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/15/1
Patch
https://github.com/vim/vim/commit/a062006b9de0b2947ab5fb376c6e67ef92a8cd69
Exploit
https://huntr.dev/bounties/00d62924-a7b4-4a61-ba29-acab2eaa1528
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNXY7T5OORA7UJIMGSJBGHFMU6UZWS6P/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IH2LS2DXBTYOCWGAKFMBF3HTWWXPBEFL/
Third Party Advisory
https://security.gentoo.org/glsa/202208-32
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