CVE-2023-52760

{"id": "CVE-2023-52760", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2024-05-21T16:15:15.410", "references": [{"url": "https://git.kernel.org/stable/c/08a28272faa750d4357ea2cb48d2baefd778ea81", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/7ad4e0a4f61c57c3ca291ee010a9d677d0199fba", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bdcb8aa434c6d36b5c215d02a9ef07551be25a37", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix slab-use-after-free in gfs2_qd_dealloc\n\nIn gfs2_put_super(), whether withdrawn or not, the quota should\nbe cleaned up by gfs2_quota_cleanup().\n\nOtherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcu\ncallback) has run for all gfs2_quota_data objects, resulting in\nuse-after-free.\n\nAlso, gfs2_destroy_threads() and gfs2_quota_cleanup() is already called\nby gfs2_make_fs_ro(), so in gfs2_put_super(), after calling\ngfs2_make_fs_ro(), there is no need to call them again."}, {"lang": "es", "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: gfs2: corrige slab-use-after-free en gfs2_qd_dealloc. En gfs2_put_super(), ya sea retirada o no, gfs2_quota_cleanup() debe limpiar la cuota. De lo contrario, la estructura gfs2_sbd se liberar\u00e1 antes de que se ejecute gfs2_qd_dealloc (devoluci\u00f3n de llamada de rcu) para todos los objetos gfs2_quota_data, lo que dar\u00e1 como resultado un use after free. Adem\u00e1s, gfs2_destroy_threads() y gfs2_quota_cleanup() ya son llamados por gfs2_make_fs_ro(), por lo que en gfs2_put_super(), despu\u00e9s de llamar a gfs2_make_fs_ro(), no es necesario volver a llamarlos."}], "lastModified": "2024-07-05T08:15:02.230", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "24DFB8C6-5FA0-4F09-BFF5-391E59AE9F03", "versionEndExcluding": "6.6.3"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}