vim use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in vim. This vulnerability affects unknown code. Such manipulation leads to use after free. This vulnerability is referenced as CVE-2021-4192. It is possible to launch the attack remotely. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in vim (Word Processing Software) (the affected version unknown) and classified as critical. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was published 12/31/2021. The advisory is shared for download at huntr.dev. This vulnerability is handled as CVE-2021-4192 since 12/30/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Applying the patch 4c13e5e6763c6eb36a343a2b8235ea227202e952 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2022-0778). Once again VulDB remains the best source for vulnerability data.

Affected

  • Apple macOS

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (huntr.dev): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 4c13e5e6763c6eb36a343a2b8235ea227202e952

Timelineinfo

12/30/2021 🔍
12/31/2021 +1 days 🔍
12/31/2021 +0 days 🔍
10/21/2025 +1390 days 🔍

Sourcesinfo

Product: github.com

Advisory: 4c13e5e6763c6eb36a343a2b8235ea227202e952
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-4192 (🔍)
GCVE (CVE): GCVE-0-2021-4192
GCVE (VulDB): GCVE-100-189500
CERT Bund: WID-SEC-2022-0778 - Apple macOS: Mehrere Schwachstellen

Entryinfo

Created: 12/31/2021 18:34
Updated: 10/21/2025 10:52
Changes: 12/31/2021 18:34 (48), 01/05/2022 10:24 (3), 10/21/2025 10:52 (20)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

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