CVE-2022-1212

Use-After-Free in str_escape in mruby/mruby in mruby/mruby

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Published Apr 5, 2022 CVSS 3.1 · 9.8 Critical EPSS 1.8% KEV · Not listed

Description

Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

mruby

mruby/mruby

affected

Version	Status	Constraints
`unspecified`	affected	< 3.2

Configuration 1 [-]

OR	cpe:2.3:a:mruby:mruby::::::::
	cpe:2.3:a:mruby:mruby:3.1.0:rc::::::
	cpe:2.3:a:mruby:mruby:3.1.0:rc2::::::

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2022-24552	Use-After-Free in str_escape in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.8% (1.794% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/mruby/mruby/commit/3cf291f72224715942beaf8553e42ba8891ab3c6
https://huntr.dev/bounties/9fcc06d0-08e4-49c8-afda-2cae40946abe

History

No history.

Subscriptions

Mruby Mruby

Weaknesses

CWE-416

Sources

CVE record Updated: Aug 2, 2024, 11:55 PM

Status: PUBLISHED
Assigner: @huntrdev
Published: Apr 5, 2022, 3:45 AM
Updated: Aug 2, 2024, 11:55 PM
Reserved: Apr 4, 2022, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:22 AM

Status: Modified
Published: Apr 5, 2022, 4:15 AM
Modified: Jun 17, 2026, 4:22 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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