{ "id": "CVE-2021-22600", "sourceIdentifier": "cve-coordination@google.com", "published": "2022-01-26T14:15:08.123", "lastModified": "2025-02-24T15:41:32.757", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "value": "A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755" }, { "lang": "es", "value": "Un bug de doble liberaci\u00f3n en la funci\u00f3n packet_set_ring() en el archivo net/packet/af_packet.c puede ser explotado por un usuario local mediante syscalls dise\u00f1ados para escalar privilegios o denegar el servicio. Es recomendado actualizar el kernel m\u00e1s all\u00e1 de las versiones afectadas o reconstruir m\u00e1s all\u00e1 de ec6af094ea28f0f2dda1a6a33b14cd57e36a9755" } ], "metrics": { "cvssMetricV31": [ { "source": "cve-coordination@google.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H", "baseScore": 6.6, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "HIGH" }, "exploitabilityScore": 0.8, "impactScore": 5.3 }, { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.0, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.0, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "baseScore": 7.2, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "availabilityImpact": "COMPLETE" }, "baseSeverity": "HIGH", "exploitabilityScore": 3.9, "impactScore": 10.0, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "cisaExploitAdd": "2022-04-11", "cisaActionDue": "2022-05-02", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Linux Kernel Privilege Escalation Vulnerability", "weaknesses": [ { "source": "cve-coordination@google.com", "type": "Secondary", 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