{ "id": "CVE-2021-4149", "sourceIdentifier": "secalert@redhat.com", "published": "2022-03-23T20:15:09.997", "lastModified": "2024-11-21T06:37:00.480", "vulnStatus": "Modified", "cveTags": [], "descriptions": [ { "lang": "en", "value": "A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem." }, { "lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en la funci\u00f3n btrfs_alloc_tree_b en el archivo fs/btrfs/extent-tree.c en el kernel de Linux debido a una operaci\u00f3n de bloqueo inapropiada en btrfs. En este fallo, un usuario con privilegio local puede causar una denegaci\u00f3n de servicio (DOS) debido a un problema de bloqueo" } ], "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:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P", "baseScore": 2.1, "accessVector": "LOCAL", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL" }, "baseSeverity": "LOW", "exploitabilityScore": 3.9, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "secalert@redhat.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-667" } ] }, { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-667" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15", "matchCriteriaId": "037A6DFB-B41D-4CC7-86C1-A201809B79C4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:*", "matchCriteriaId": "40D9C0D1-0F32-4A2B-9840-1072F5497540" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*", "matchCriteriaId": "E46C74C6-B76B-4C94-A6A4-FD2FFF62D644" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*", "matchCriteriaId": "60134C3A-06E4-48C1-B04F-2903732A4E56" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*", "matchCriteriaId": "0460DA88-8FE1-46A2-9DDA-1F1ABA552E71" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*", "matchCriteriaId": "AF55383D-4DF2-45DC-93F7-571F4F978EAB" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:*", "matchCriteriaId": "9E9481B2-8AA6-4CBD-B5D3-C10F51FF6D01" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252" } ] } ] } ], "references": [ { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2026485", "source": "secalert@redhat.com", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html", "source": "secalert@redhat.com", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://lkml.org/lkml/2021/10/18/885", "source": "secalert@redhat.com", "tags": [ "Exploit", "Mailing List", "Patch", "Third Party Advisory" ] }, { "url": "https://lkml.org/lkml/2021/9/13/2565", "source": "secalert@redhat.com", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ] }, { "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2026485", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Issue Tracking", "Third Party Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://lkml.org/lkml/2021/10/18/885", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Mailing List", "Patch", "Third Party Advisory" ] }, { "url": "https://lkml.org/lkml/2021/9/13/2565", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Exploit", "Mailing List", "Third Party Advisory" ] } ] }