CVE-2021-46283

{"id": "CVE-2021-46283", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.9, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2022-01-11T22:15:07.683", "references": [{"url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13", "tags": ["Release Notes", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ad9f151e560b016b6ad3280b48e42fa11e1a5440", "tags": ["Patch", "Vendor Advisory"], "source": "cve@mitre.org"}, {"url": "https://syzkaller.appspot.com/bug?id=22c3987f75a7b90e238a26b5a5920525c2d1f345", "tags": ["Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-665"}]}], "descriptions": [{"lang": "en", "value": "nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace."}, {"lang": "es", "value": "La funci\u00f3n nf_tables_newset en el archivo net/netfilter/nf_tables_api.c en el kernel de Linux versiones anteriores a 5.12.13, permite a usuarios locales causar una denegaci\u00f3n de servicio (desreferencia de puntero NULL y fallo de protecci\u00f3n general) debido a una falta de inicializaci\u00f3n de la funci\u00f3n nft_set_elem_expr_alloc. Un usuario local puede establecer una expresi\u00f3n de la tabla netfilter en su propio espacio de nombres"}], "lastModified": "2022-01-20T13:30:57.217", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4C096241-6457-4DB4-80C3-DD650F628184", "versionEndExcluding": "5.12.13"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}