PT-2021-6132 · Vim+3 · Vim+3

Brammool · Published 2021-12-27 · Updated 2025-03-30 · CVE-2021-4173

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions vim (affected versions not specified)

Description The issue is related to a Use After Free vulnerability in the compile def function() function of the vim text editor, which is associated with the use of memory after it has been freed. Exploitation of this issue may allow an attacker to execute arbitrary code.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2022-1087

ALT-PU-2022-1711

ALT-PU-2022-1731

ALT-PU-2022-1771

AZL-7084

BDU:2022-00981

CVE-2021-4173

DLA-4097-1

MGASA-2022-0015

Affected Products

Alt Linux

Debian

Apple Macos

Vim

References · 39

• 🔥 https://huntr.dev/bounties/a1b236b9-89fb-4ccf-9689-ba11b471e766 · Exploit
• https://github.com/vim/vim/commit/9c23f9bb5fe435b28245ba8ac65aa0ca6b902c04 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-4173 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-4173 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4173 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/3FH2J57GDA2WMBS6J56F6QQRA6BXQQFZ · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/675929 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2021-4173 · Vendor Advisory
• https://security.gentoo.org/glsa/202208-32 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00981 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4097-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD · Vendor Advisory
• https://osv.dev/vulnerability/AZL-7084 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-4173 · Vendor Advisory