Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-4166

vim is vulnerable to Out-of-bounds Read

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.1, requiring local system access to exploit with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), and availability (service disruption) for affected systems. Impacting 8 products from vim, from redhat, from opensuse and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2021-12-25T19:15:07.280

Last Modified

2024-11-21T06:37:03.080

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

4.9

Weaknesses

Type: Secondary
CWE-125
Type: Secondary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	vim	vim	< 8.2.3884	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Application	opensuse	factory	-	Yes
Operating System	suse	linux_enterprise	12.0	Yes
Operating System	suse	linux_enterprise	15.0	Yes
Operating System	debian	debian_linux	9.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes
Operating System	fedoraproject	fedora	34	Yes
Operating System	fedoraproject	fedora	35	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	mac_os_x	10.15.7	Yes
Operating System	apple	macos	< 12.3	Yes
Operating System	apple	macos	< 11.6.6	Yes
Operating System	apple	macos	10.15.7	Yes

References

http://seclists.org/fulldisclosure/2022/Jul/14 Mailing List, Third Party Advisory ([email protected])
http://seclists.org/fulldisclosure/2022/Mar/29 Mailing List, Third Party Advisory ([email protected])
http://seclists.org/fulldisclosure/2022/May/35 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2022/01/15/1 Mailing List, Third Party Advisory ([email protected])
https://github.com/vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682 Patch, Third Party Advisory ([email protected])
https://huntr.dev/bounties/229df5dd-5507-44e9-832c-c70364bdf035 Exploit, Issue Tracking, Patch, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/ ([email protected])
https://security.gentoo.org/glsa/202208-32 Third Party Advisory ([email protected])
https://support.apple.com/kb/HT213183 Release Notes, Third Party Advisory ([email protected])
https://support.apple.com/kb/HT213256 Third Party Advisory ([email protected])
https://support.apple.com/kb/HT213343 Third Party Advisory ([email protected])
http://seclists.org/fulldisclosure/2022/Jul/14 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2022/Mar/29 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2022/May/35 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2022/01/15/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/vim/vim/commit/6f98371532fcff911b462d51bc64f2ce8a6ae682 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://huntr.dev/bounties/229df5dd-5507-44e9-832c-c70364bdf035 Exploit, Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ/ (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202208-32 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/kb/HT213183 Release Notes, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/kb/HT213256 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/kb/HT213343 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For vim's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.