CVE-2020-36475

{"id": "CVE-2020-36475", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "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": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-08-23T02:15:06.930", "references": [{"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-756638.pdf", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.18", "tags": ["Release Notes", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-756638.pdf", "tags": ["Patch", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.16.9", "tags": ["Release Notes", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0", "tags": ["Release Notes", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/ARMmbed/mbedtls/releases/tag/v2.7.18", "tags": ["Release Notes", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00021.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-131"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). The calculations performed by mbedtls_mpi_exp_mod are not limited; thus, supplying overly large parameters could lead to denial of service when generating Diffie-Hellman key pairs."}, {"lang": "es", "value": "Se ha detectado un problema en Mbed TLS versiones anteriores a 2.25.0 (y versiones anteriores a 2.16.9 LTS y versiones anteriores a 2.7.18 LTS). Los c\u00e1lculos llevado a cabo por la funci\u00f3n mbedtls_mpi_exp_mod no est\u00e1n limitados; por lo tanto, el suministro de par\u00e1metros demasiado grandes podr\u00eda conllevar a una denegaci\u00f3n de servicio cuando se generan pares de claves Diffie-Hellman."}], "lastModified": "2024-11-21T05:29:37.603", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D1399656-491A-428C-B290-5303A59B7C0E", "versionEndExcluding": "2.7.18"}, {"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9DD8F7D9-7E6F-4C31-A38C-D4B246F713FF", "versionEndExcluding": "2.16.9", "versionStartIncluding": "2.8.0"}, {"criteria": "cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "57294BAA-C692-4C66-96E9-7B653E32D88C", "versionEndExcluding": "2.25.0", "versionStartIncluding": "2.17.0"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:logo\\!_cmr2020_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE9FB0B2-71ED-4208-B908-1C78CB15E372", "versionEndExcluding": "2.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:logo\\!_cmr2020:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E8E5F42B-63E3-4B2D-A03F-983F51EE0648"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:logo\\!_cmr2040_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ECD83A4C-DB7F-425C-882C-0DC809AD4A21", "versionEndExcluding": "2.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:logo\\!_cmr2040:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6ED47A12-5637-40E2-BE39-B76B789C0DFD"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_rtu3031c_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64954FA1-0F30-4D1D-8218-C3BA84C5AAF0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_rtu3031c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "48F0595C-286F-4EB1-8C25-D20FB92A95A0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_rtu3041c_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0307A2DD-B616-4551-8C31-0B0EBE4A4B12"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_rtu3041c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E57561E2-DC49-4D11-BBF1-40E7B14A6873"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_rtu3030c_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "61C3C191-5CEE-46F7-9231-BD2E246130E1"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_rtu3030c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6A66DD04-4C58-45D8-A8C5-6817B05DBA14"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_rtu3000c_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6B3325EA-59B3-4BB6-923D-0D89CB8AAC25"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_rtu3000c:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D2E902CE-D319-4FC9-BC9B-7D8DB83FAD9B"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"}, {"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}