Vim heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Vim. It has been declared as critical. The impacted element is an unknown function. The manipulation results in heap-based overflow. This vulnerability is identified as CVE-2021-3778. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Vim (Word Processing Software) (version now known). It has been classified as critical. Affected is some unknown processing. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as 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(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 09/15/2021 as 65b605665997fad54ef39a93199e305af2fe4d7f. The advisory is available at huntr.dev. This vulnerability is traded as CVE-2021-3778 since 09/07/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 212490 (Amazon Linux 2022 : vim (ALAS2022-2021-001)), which helps to determine the existence of the flaw in a target environment.

Applying the patch 65b605665997fad54ef39a93199e305af2fe4d7f 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 (212490). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

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

CNA Base Score: 7.8
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: 212490
Nessus Name: Amazon Linux 2022 : vim (ALAS2022-2021-001)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 65b605665997fad54ef39a93199e305af2fe4d7f

Timelineinfo

09/07/2021 🔍
09/15/2021 +8 days 🔍
09/15/2021 +0 days 🔍
05/03/2025 +1326 days 🔍

Sourcesinfo

Product: github.com

Advisory: 65b605665997fad54ef39a93199e305af2fe4d7f
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-3778 (🔍)
GCVE (CVE): GCVE-0-2021-3778
GCVE (VulDB): GCVE-100-182706

Entryinfo

Created: 09/15/2021 13:01
Updated: 05/03/2025 11:14
Changes: 09/15/2021 13:01 (49), 09/17/2021 16:38 (2), 12/12/2024 22:57 (16), 05/03/2025 11:14 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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