PT-2021-6134 · Vim+4 · Vim+4

Brammool · Published 2021-12-19 · Updated 2022-12-27 · CVE-2021-4136

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 heap-based buffer overflow in the vim text editor, specifically in the eval lambda() function located in src/eval.c. This overflow occurs in dynamic memory and can be exploited to cause a buffer overflow, potentially allowing an attacker to execute malicious actions.

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

Exploit

Heap Based Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-122

CWE-787

Related Identifiers

ALT-PU-2022-1087

ALT-PU-2022-1711

ALT-PU-2022-1731

ALT-PU-2022-1771

AZL-7057

BDU:2022-00991

CVE-2021-4136

MGASA-2022-0015

OPENSUSE-SU-2022_2102-1

SUSE-SU-2022:2102-1

SUSE-SU-2022:4619-1

Affected Products

Alt Linux

Debian

Apple Macos

Suse

Vim

References · 254

• 🔥 https://huntr.dev/bounties/5c6b93c1-2d27-4e98-a931-147877b8c938 · Exploit
• https://github.com/vim/vim/commit/605ec91e5a7330d61be313637e495fa02a6dc264 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-4136 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4619-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-4136 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-4136 · Security Note
• https://osv.dev/vulnerability/AZL-7057 · Vendor Advisory
• https://osv.dev/vulnerability/ALPINE-CVE-2021-4136 · Vendor Advisory
• https://security.gentoo.org/glsa/202208-32 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-4136 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00991 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/2EY2VFBU3YGGWI5BW4XKT3F37MYGEQUD · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-4136 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2022-0015.html · Security Note