vim up to 8.1 regexp.c vim_regexec_string null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in vim up to 8.1. This impacts the function vim_regexec_string of the file regexp.c. Performing a manipulation results in null pointer dereference. This vulnerability was named CVE-2022-1620. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in vim up to 8.1 (Word Processing Software). This affects the function vim_regexec_string of the file regexp.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was presented 05/08/2022. It is possible to read the advisory at huntr.dev. This vulnerability is uniquely identified as CVE-2022-1620 since 05/07/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 8.2 eliminates this vulnerability. Applying the patch 8e4b76da1d7e987d43ca960dfbc372d1c617466f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-24909). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.6
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: Null pointer dereference
CWE: CWE-476 / CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: vim 8.2
Patch: 8e4b76da1d7e987d43ca960dfbc372d1c617466f

Timelineinfo

05/07/2022 🔍
05/08/2022 +1 days 🔍
05/08/2022 +0 days 🔍
04/07/2026 +1430 days 🔍

Sourcesinfo

Product: github.com

Advisory: 8e4b76da1d7e987d43ca960dfbc372d1c617466f
Status: Confirmed

CVE: CVE-2022-1620 (🔍)
GCVE (CVE): GCVE-0-2022-1620
GCVE (VulDB): GCVE-100-199263
EUVD: 🔍

Entryinfo

Created: 05/08/2022 17:32
Updated: 04/07/2026 13:17
Changes: 05/08/2022 17:32 (42), 05/11/2022 15:08 (2), 05/11/2022 15:14 (12), 04/07/2026 13:17 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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