Vim heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Vim. The impacted element is an unknown function. The manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2021-3903. The attack can be initiated remotely. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Vim (Word Processing Software) (affected version not known) and classified as critical. This issue affects some unknown functionality. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to 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(). Impacted is confidentiality, integrity, and availability.

The weakness was released 10/28/2021. The advisory is shared at huntr.dev. The identification of this vulnerability is CVE-2021-3903 since 10/25/2021. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211571 (Oracle Linux 9 : vim (ELSA-2024-9405)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 777e7c21b7627be80961848ac560cb0a9978ff43 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 (211571). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.6

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

CNA Base Score: 7.3
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: 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: 🔍

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Nessus ID: 211571
Nessus Name: Oracle Linux 9 : vim (ELSA-2024-9405)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 777e7c21b7627be80961848ac560cb0a9978ff43

Timelineinfo

10/25/2021 🔍
10/28/2021 +3 days 🔍
10/28/2021 +0 days 🔍
05/03/2025 +1283 days 🔍

Sourcesinfo

Product: github.com

Advisory: 777e7c21b7627be80961848ac560cb0a9978ff43
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3903 (🔍)
GCVE (CVE): GCVE-0-2021-3903
GCVE (VulDB): GCVE-100-185621

Entryinfo

Created: 10/28/2021 13:53
Updated: 05/03/2025 02:19
Changes: 10/28/2021 13:53 (48), 11/01/2021 13:11 (3), 11/19/2024 17:09 (16), 05/03/2025 02:19 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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