CVE-2021-36357

{"id": "CVE-2021-36357", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2021-10-22T12:15:08.030", "references": [{"url": "https://github.com/open-power/skiboot/commit/5be38b672c1410e2f10acd3ad2eecfdc81d5daf7", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-681"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in OpenPOWER 2.6 firmware. unpack_timestamp() calls le32_to_cpu() for endian conversion of a uint16_t \"year\" value, resulting in a type mismatch that can truncate a higher integer value to a smaller one, and bypass a timestamp check. The fix is to use the right endian conversion function."}, {"lang": "es", "value": "Se ha detectado un problema en el firmware OpenPOWER versi\u00f3n 2.6. la funci\u00f3n unpack_timestamp() llama a la funci\u00f3n le32_to_cpu() para la conversi\u00f3n endiana de un valor \"year\" uint16_t, resultando en un desajuste de tipo que puede truncar un valor entero mayor a uno m\u00e1s peque\u00f1o y omitir una comprobaci\u00f3n de marca de tiempo. La correcci\u00f3n consiste en usar la funci\u00f3n de conversi\u00f3n endiana correcta"}], "lastModified": "2021-10-27T12:30:29.137", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:openpowerfoundation:skiboot:2.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "048B99E0-E7A5-4BD9-8D77-891F618040F8"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}