CVE-2021-4110 - Vulnerability Details - OpenCVE

mruby is vulnerable to NULL Pointer Dereference

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.01621.

Key SSVC decision points have not yet been added.

Vendors	Products
Mruby	Mruby

Configuration 1 [-]

cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*

No data.

No data.

References

Link	Providers
https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34
https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20

History

No history.

MITRE

Status: PUBLISHED

Assigner: @huntrdev

Published: 2021-12-15T04:40:10.000Z

Updated: 2024-08-03T17:16:04.173Z

Reserved: 2021-12-14T00:00:00.000Z

Link: CVE-2021-4110

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-12-15T05:15:08.323

Modified: 2026-06-17T04:19:03.153

Link: CVE-2021-4110

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "mruby/mruby", "vendor": "mruby", "versions": [{"lessThan": "3.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "mruby is vulnerable to NULL Pointer Dereference"}], "metrics": [{"cvssV3_0": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-12-15T04:40:10.000Z", "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "shortName": "@huntrdev"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34"}], "source": {"advisory": "4ce5dc47-2512-4c87-8609-453adc8cad20", "discovery": "EXTERNAL"}, "title": "NULL Pointer Dereference in mruby/mruby", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@huntr.dev", "ID": "CVE-2021-4110", "STATE": "PUBLIC", "TITLE": "NULL Pointer Dereference in mruby/mruby"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "mruby/mruby", "version": {"version_data": [{"version_affected": "<", "version_value": "3.1"}]}}]}, "vendor_name": "mruby"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "mruby is vulnerable to NULL Pointer Dereference"}]}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-476 NULL Pointer Dereference"}]}]}, "references": {"reference_data": [{"name": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20", "refsource": "CONFIRM", "url": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20"}, {"name": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34", "refsource": "MISC", "url": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34"}]}, "source": {"advisory": "4ce5dc47-2512-4c87-8609-453adc8cad20", "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:16:04.173Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34"}]}]}, "cveMetadata": {"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a", "assignerShortName": "@huntrdev", "cveId": "CVE-2021-4110", "datePublished": "2021-12-15T04:40:10.000Z", "dateReserved": "2021-12-14T00:00:00.000Z", "dateUpdated": "2024-08-03T17:16:04.173Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "mruby/mruby", "vendor": "mruby", "versions": [{"lessThan": "3.1", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@huntr.dev"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*", "matchCriteriaId": "CD20F80E-4513-4565-9668-0D5EA105A14B", "versionEndExcluding": "3.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "mruby is vulnerable to NULL Pointer Dereference"}, {"lang": "es", "value": "mruby es vulnerable a una Desreferencia de Puntero NULL"}], "id": "CVE-2021-4110", "lastModified": "2026-06-17T04:19:03.153", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security@huntr.dev", "type": "Secondary"}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-12-15T05:15:08.323", "references": [{"source": "security@huntr.dev", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34"}, {"source": "security@huntr.dev", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/mruby/mruby/commit/f5e10c5a79a17939af763b1dcf5232ce47e24a34"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20"}], "sourceIdentifier": "security@huntr.dev", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "security@huntr.dev", "type": "Secondary"}]}