CVE-2021-31400

{"id": "CVE-2021-31400", "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": "2021-08-19T11:15:07.710", "references": [{"url": "https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/", "tags": ["Mitigation", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://www.kb.cert.org/vuls/id/608209", "tags": ["Third Party Advisory", "US Government Resource"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-835"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in tcp_pulloutofband() in tcp_in.c in HCC embedded InterNiche 4.0.1. The TCP out-of-band urgent-data processing function invokes a panic function if the pointer to the end of the out-of-band data points outside of the TCP segment's data. If the panic function hadn't a trap invocation removed, it will enter an infinite loop and therefore cause DoS (continuous loop or a device reset)."}, {"lang": "es", "value": "Se ha detectado un problema en la funci\u00f3n tcp_pulloutofband() en el archivo tcp_in.c en HCC embedded InterNiche versi\u00f3n 4.0.1. La funci\u00f3n de procesamiento de datos urgentes de TCP fuera de banda invoca una funci\u00f3n de p\u00e1nico si el puntero al final de los datos fuera de banda apunta fuera de los datos del segmento TCP. Si la funci\u00f3n de p\u00e1nico no presenta una invocaci\u00f3n de trampa eliminada, entrar\u00e1 en un bucle infinito y por lo tanto causar\u00e1 DoS (bucle continuo o un reinicio del dispositivo)."}], "lastModified": "2021-08-26T17:17:32.427", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36A27EF5-D19C-4126-850C-89387A7A1410", "versionEndExcluding": "4.3"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}