{ "id": "CVE-2021-3739", "sourceIdentifier": "secalert@redhat.com", "published": "2022-03-10T17:43:01.463", "lastModified": "2022-06-01T20:30:33.953", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "A NULL pointer dereference flaw was found in the btrfs_rm_device function in fs/btrfs/volumes.c in the Linux Kernel, where triggering the bug requires \u2018CAP_SYS_ADMIN\u2019. This flaw allows a local attacker to crash the system or leak kernel internal information. The highest threat from this vulnerability is to system availability." }, { "lang": "es", "value": "Se ha encontrado un fallo de desreferencia de puntero NULL en la funci\u00f3n btrfs_rm_device en el archivo fs/btrfs/volumes.c en el Kernel de Linux, donde el desencadenamiento del bug requiere \"CAP_SYS_ADMIN\". Este fallo permite a un atacante local bloquear el sistema o filtrar informaci\u00f3n interna del kernel. La mayor amenaza de esta vulnerabilidad es la disponibilidad del sistema" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:P", "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 3.6 }, "baseSeverity": "LOW", "exploitabilityScore": 3.9, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-476" } ] }, { "source": "secalert@redhat.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-476" } ] } ], "configurations": [ { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndIncluding": "5.14.20", "matchCriteriaId": "BBD585C2-3F95-4E2A-BD16-33C3A6211557" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h300s_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "1746E116-3B82-4F65-B540-63D4058BD471" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:*", "matchCriteriaId": "04FD1F9A-8F43-4509-9A49-714C54C4783C" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h500s_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "BAFC49B0-FC63-4F06-A9DC-B853186003A9" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:*", "matchCriteriaId": "504201E4-04CD-4224-9264-C1AEAD480E36" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h700s_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "9BFAB819-0951-4D57-9B86-3CF590E50E7A" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:*", "matchCriteriaId": "BDDA0D1D-3A1E-4CF5-BD6A-F05AE4E8CDDA" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h300e_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "806D1842-64F5-4F4C-B728-AFD0B99CE6EB" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:*", "matchCriteriaId": "266DDF39-2707-401F-88AF-3761D1045202" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h500e_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "4ED4148B-73E9-48DA-BB54-F5A43B21FD56" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:*", "matchCriteriaId": "B09AB46C-8B35-4085-AD86-56EC06F665CB" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h700e_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "46BB915A-F2AE-4041-89F1-03547F819DFF" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:*", "matchCriteriaId": "A33DCDCD-58EC-495A-BD5E-BB612F5B8A39" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h410s_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "88A6EDE4-DD97-45A9-8366-E999525AA68F" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:*", "matchCriteriaId": "C2934495-6D4D-4C21-89E3-A2414ABDD5CE" } ] } ] }, { "operator": "AND", "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "8665C148-3C9E-4EC9-A281-293D2352B8B9" } ] }, { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": false, "criteria": "cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:*", "matchCriteriaId": "1A0CE664-32E5-4917-8319-7D2A31DCD72F" } ] } ] } ], "references": [ { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1997958", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Patch", "Third Party Advisory" ] }, { "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091", "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Vendor Advisory" ] }, { "url": "https://github.com/torvalds/linux/commit/e4571b8c5e9ffa1e85c0c671995bd4dcc5c75091", "source": "secalert@redhat.com", "tags": [ "Exploit", "Patch", "Third Party Advisory" ] }, { "url": "https://security.netapp.com/advisory/ntap-20220407-0006/", "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://ubuntu.com/security/CVE-2021-3739", "source": "secalert@redhat.com", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.openwall.com/lists/oss-security/2021/08/25/3", "source": "secalert@redhat.com", "tags": [ "Mailing List", "Patch", "Third Party Advisory" ] } ] }