mruby 3.0.0 mrb_vm_exec null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in mruby 3.0.0. This vulnerability affects the function mrb_vm_exec. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2021-46020. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in mruby 3.0.0 (Programming Language Software). This affects the function mrb_vm_exec. 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 confidentiality, integrity, and availability.

The weakness was shared 01/15/2022 as 5613. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2021-46020 since 01/03/2022. Technical details of the vulnerability are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/03/2022 🔍
01/15/2022 +12 days 🔍
01/15/2022 +0 days 🔍
01/19/2022 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: 5613
Status: Confirmed

CVE: CVE-2021-46020 (🔍)
GCVE (CVE): GCVE-0-2021-46020
GCVE (VulDB): GCVE-100-190479

Entryinfo

Created: 01/15/2022 07:04
Updated: 01/19/2022 07:43
Changes: 01/15/2022 07:04 (38), 01/19/2022 07:43 (1)
Complete: 🔍
Cache ID: 216::103

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

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