mruby up to 3.1 mrb_vm_exec use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability was found in mruby up to 3.1. It has been rated as critical. Affected by this issue is the function mrb_vm_exec. Performing a manipulation results in use after free. This vulnerability is reported as CVE-2022-1106. The attack requires a local approach. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in mruby up to 3.1 (Programming Language Software). This affects the function mrb_vm_exec. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 03/27/2022. It is possible to read the advisory at huntr.dev. This vulnerability is uniquely identified as CVE-2022-1106 since 03/26/2022. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.2 eliminates this vulnerability. Applying the patch 7f5a490d09f4d56801ac3a3e4e39e03e1471b44c 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.

Statistical analysis made it clear that VulDB provides the best quality 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: 3.9
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.2
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: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: mruby 3.2
Patch: 7f5a490d09f4d56801ac3a3e4e39e03e1471b44c

Timelineinfo

03/26/2022 🔍
03/27/2022 +1 days 🔍
03/27/2022 +0 days 🔍
03/31/2022 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: 7f5a490d09f4d56801ac3a3e4e39e03e1471b44c
Status: Confirmed

CVE: CVE-2022-1106 (🔍)
GCVE (CVE): GCVE-0-2022-1106
GCVE (VulDB): GCVE-100-195867

Entryinfo

Created: 03/27/2022 20:49
Updated: 03/31/2022 08:16
Changes: 03/27/2022 20:49 (51), 03/31/2022 08:16 (2)
Complete: 🔍
Cache ID: 216::103

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

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