CVE-2023-0240

{"id": "CVE-2023-0240", "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "cve-coordination@google.com", "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}, {"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": "2023-01-30T14:15:10.403", "references": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49", "tags": ["Patch", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93", "tags": ["Patch", "Third Party Advisory"], "source": "cve-coordination@google.com"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93", "tags": ["Mailing List", "Patch", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.netapp.com/advisory/ntap-20230316-0001/", "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "cve-coordination@google.com", "description": [{"lang": "en", "value": "CWE-416"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-416"}]}], "descriptions": [{"lang": "en", "value": "There is a logic error in io_uring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation.\n\nIn the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161."}, {"lang": "es", "value": "Hay un error l\u00f3gico en la implementaci\u00f3n de io_uring que puede usarse para desencadenar una vulnerabilidad use-after-free que conduce a una escalada de privilegios. En la funci\u00f3n io_prep_async_work, la suposici\u00f3n de que la \u00faltima llamada a io_grab_identity no puede devolver falso no es cierta y, en este caso, la funci\u00f3n utilizar\u00e1 la identidad init_cred o las solicitudes vinculadas anteriores para realizar operaciones en lugar de utilizar la identidad actual. Esto puede provocar problemas de recuento de referencias que provoquen Use-After-Free. Recomendamos actualizar a la versi\u00f3n anterior 5.10.161."}], "lastModified": "2024-11-21T07:36:48.030", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D61CA62B-157A-4415-B8FD-7C3C1208315D", "versionEndExcluding": "5.10"}], "operator": "OR"}]}], "sourceIdentifier": "cve-coordination@google.com"}