VDB-187411 · CVE-2021-4019 · Nessus 233548

Vim heap-based overflow

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
7.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Vim. It has been rated as critical. This issue affects some unknown processing. This manipulation causes heap-based overflow. This vulnerability is handled as CVE-2021-4019. The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Vim (Word Processing Software) (version unknown) and classified as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 12/01/2021. It is possible to read the advisory at huntr.dev. This vulnerability is known as CVE-2021-4019 since 11/25/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 233548 (Debian dla-4097 : vim - security update), which helps to determine the existence of the flaw in a target environment.

Applying the patch bd228fd097b41a798f90944b5d1245eddd484142 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 Tenable (233548). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Word Processing Software

Name

License

open-source

Website

Product: https://github.com/vim/vim/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

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

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.1
CNA Vector (huntr.dev): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 233548
Nessus Name: Debian dla-4097 : vim - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: bd228fd097b41a798f90944b5d1245eddd484142

Timelineinfo

11/25/2021 🔍
12/01/2021 +6 days 🔍
12/01/2021 +0 days 🔍
11/04/2025 +1434 days 🔍

Sourcesinfo

Product: github.com

Advisory: bd228fd097b41a798f90944b5d1245eddd484142
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-4019 (🔍)
GCVE (CVE): GCVE-0-2021-4019
GCVE (VulDB): GCVE-100-187411

Entryinfo

Created: 12/01/2021 12:39
Updated: 11/04/2025 09:43
Changes: 12/01/2021 12:39 (48), 12/08/2021 06:31 (3), 12/08/2021 06:41 (19), 03/30/2025 19:09 (16), 11/04/2025 09:43 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.