CVE-2018-0177

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The vulnerability is due to incorrect processing of certain IPv4 packets. An attacker could exploit this vulnerability by sending specific IPv4 packets to an IPv4 address on an affected device. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. If the switch does not reboot when under attack, it would require manual intervention to reload the device. This vulnerability affects Cisco Catalyst 3850 and Cisco Catalyst 3650 Series Switches that are running Cisco IOS XE Software Release 16.1.1 or later, until the first fixed release, and are configured with an IPv4 address. Cisco Bug IDs: CSCvd80714."}, {"lang": "es", "value": "Una vulnerabilidad en el c\u00f3digo de procesamiento IPv4 (IP Version 4) de Cisco IOS XE Software, ejecut\u00e1ndose en los switches Cisco Catalyst 3850 y Cisco Catalyst 3650 Series, podr\u00eda permitir que un atacante remoto no autenticado provoque que haya un consumo elevado de recursos de CPU, que pueda leer trazas del sistema o que reinicie el dispositivo afectado para provocar una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a un procesamiento incorrecto de ciertos paquetes IPv4. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes IPv4 espec\u00edficos a una direcci\u00f3n IPv4 en un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante provocar que haya un consumo elevado de recursos de CPU, que pueda leer trazas del sistema o que reinicie el dispositivo afectado para provocar una denegaci\u00f3n de servicio (DoS). Si el switch no se reinicia al sufrir un ataque, ser\u00eda necesario intervenir de forma manual para recargar el dispositivo. Esta vulnerabilidad afecta a los switches Cisco Catalyst 3850 y Cisco Catalyst 3650 Series que ejecutan Cisco IOS XE Software Release 16.1.1 o posteriores, hasta el primer release con soluci\u00f3n, que est\u00e9n configurados con una direcci\u00f3n IPv4. Cisco Bug IDs: CSCvd80714."}], "id": "CVE-2018-0177", "lastModified": "2026-06-17T01:30:00.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2018-0177", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-12-02T19:11:03.524152Z", "version": "2.0.3"}}]}, "published": "2018-03-28T22:29:01.407", "references": [{"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103563"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040588"}, {"source": "psirt@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ipv4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/103563"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1040588"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ipv4"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-19"}], "source": "psirt@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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