CVE-2021-33137 - Vulnerability Details - OpenCVE

Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00058.

Exploitation none

Automatable no

Technical Impact total

Vendors	Products
Intel Subscribe	Kernelflinger Subscribe

Configuration 1 [-]

cpe:2.3:a:intel:kernelflinger:*:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2021-19852	Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html

History

Mon, 05 May 2025 17:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: intel

Published: 2022-02-09T22:04:43.000Z

Updated: 2025-05-05T16:47:59.913Z

Reserved: 2021-05-18T00:00:00.000Z

Link: CVE-2021-33137

Vulnrichment

Updated: 2024-08-03T23:42:20.286Z

NVD

Status : Modified

Published: 2022-02-09T23:15:15.703

Modified: 2025-05-05T17:17:23.590

Link: CVE-2021-33137

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-787

{"containers": {"cna": {"affected": [{"product": "Intel(R) Kernelflinger project", "vendor": "n/a", "versions": [{"status": "affected", "version": "See references"}]}], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access."}], "problemTypes": [{"descriptions": [{"description": " escalation of privilege ", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2022-02-09T22:04:43.000Z", "orgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce", "shortName": "intel"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secure@intel.com", "ID": "CVE-2021-33137", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Intel(R) Kernelflinger project", "version": {"version_data": [{"version_value": "See references"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": " escalation of privilege "}]}]}, "references": {"reference_data": [{"name": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html", "refsource": "MISC", "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:42:20.286Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html"}]}, {"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "CWE-787 Out-of-bounds Write"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T13:31:11.183835Z", "id": "CVE-2021-33137", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-05T16:47:59.913Z"}}]}, "cveMetadata": {"assignerOrgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce", "assignerShortName": "intel", "cveId": "CVE-2021-33137", "datePublished": "2022-02-09T22:04:43.000Z", "dateReserved": "2021-05-18T00:00:00.000Z", "dateUpdated": "2025-05-05T16:47:59.913Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:42:20.286Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2021-33137", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2025-04-23T13:31:11.183835Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-787", "description": "CWE-787 Out-of-bounds Write"}]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-05-05T13:13:58.208Z"}}], "cna": {"affected": [{"vendor": "n/a", "product": "Intel(R) Kernelflinger project", "versions": [{"status": "affected", "version": "See references"}]}], "references": [{"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "text", "description": " escalation of privilege "}]}], "providerMetadata": {"orgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce", "shortName": "intel", "dateUpdated": "2022-02-09T22:04:43.000Z"}, "x_legacyV4Record": {"affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "See references"}]}, "product_name": "Intel(R) Kernelflinger project"}]}, "vendor_name": "n/a"}]}}, "data_type": "CVE", "references": {"reference_data": [{"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html", "name": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html", "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": " escalation of privilege "}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-33137", "STATE": "PUBLIC", "ASSIGNER": "secure@intel.com"}}}}, "cveMetadata": {"cveId": "CVE-2021-33137", "state": "PUBLISHED", "dateUpdated": "2025-05-05T16:47:59.913Z", "dateReserved": "2021-05-18T00:00:00.000Z", "assignerOrgId": "6dda929c-bb53-4a77-a76d-48e79601a1ce", "datePublished": "2022-02-09T22:04:43.000Z", "assignerShortName": "intel"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:intel:kernelflinger:*:*:*:*:*:*:*:*", "matchCriteriaId": "26C17CF9-74FC-4694-9E97-121A5051158E", "versionEndExcluding": "2021-06-28", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Out-of-bounds write in the Intel(R) Kernelflinger project may allow an authenticated user to potentially enable escalation of privilege via local access."}, {"lang": "es", "value": "Una escritura fuera de l\u00edmites en el proyecto Intel(R) Kernelflinger puede permitir a un usuario autenticado habilitar potencialmente una escalada de privilegios por medio del acceso local"}], "id": "CVE-2021-33137", "lastModified": "2025-05-05T17:17:23.590", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2022-02-09T23:15:15.703", "references": [{"source": "secure@intel.com", "tags": ["Vendor Advisory"], "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00591.html"}], "sourceIdentifier": "secure@intel.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-787"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}