CVE-2020-17444

{"id": "CVE-2020-17444", "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": "2020-12-11T23:15:13.450", "references": [{"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cve@mitre.org"}, {"url": "https://www.kb.cert.org/vuls/id/815128", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cve@mitre.org"}, {"url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01", "tags": ["Third Party Advisory", "US Government Resource"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.kb.cert.org/vuls/id/815128", "tags": ["Third Party Advisory", "US Government Resource"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-190"}, {"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in picoTCP 1.7.0. The routine for processing the next header field (and deducing whether the IPv6 extension headers are valid) doesn't check whether the header extension length field would overflow. Therefore, if it wraps around to zero, iterating through the extension headers will not increment the current data pointer. This leads to an infinite loop and Denial-of-Service in pico_ipv6_check_headers_sequence() in pico_ipv6.c."}, {"lang": "es", "value": "Se detect\u00f3 un problema en picoTCP versi\u00f3n 1.7.0. La rutina para procesar el siguiente campo de encabezado (y deducir si los encabezados de extensi\u00f3n de IPv6 son v\u00e1lidos) no comprueba si el campo de longitud de extensi\u00f3n de encabezado se desbordar\u00eda. Por lo tanto, si vuelve a cero, la iteraci\u00f3n por medio de los encabezados de extensi\u00f3n no incrementar\u00e1 el puntero de datos actual. Esto conlleva a un bucle infinito y Denegaci\u00f3n de Servicio en la funci\u00f3n pico_ipv6_check_headers_sequence() en el archivo pico_ipv6.c"}], "lastModified": "2024-11-21T05:08:07.690", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:altran:picotcp:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BEB4123E-EE54-4991-9011-42FD1FC83662", "versionEndIncluding": "1.7.0"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}