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CVE

CVE-2021-4192

vim is vulnerable to Use After Free

vim is vulnerable to Use After Free.

HIGH · CVSS 7.8 EPSS 0.00554
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
CWE-416Use After Free
▤

Affected Products & Versions

7
vim< 8.2.3949
fedoraproject fedoraall versions
debian linuxall versions
apple mac os xall versions
apple macos< 12.3
apple macos>= 11.0 and < 11.6.6
apple macosall versions
⚠

Public Exploits & PoCs

1
pochuntr.dev · 6dd9cb2e-a940-4093-856e-59b502429f22huntr.dev
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · security@huntr.dev
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Dec 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

6
usnUSN-6026-1
suse-csafSUSE-SU-2022:4619-1
suse-csafSUSE-SU-2022:2102-1
usnUSN-5433-1
msrcCVE-2021-4192
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2022/Jul/14Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/Mar/29Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2022/May/35Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2022/01/15/1Mailing ListThird Party Advisory
https://github.com/vim/vim/commit/4c13e5e6763c6eb36a343a2b8235ea227202e952PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00018.htmlMailing ListThird Party Advisory
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