{"containers": {"cna": {"affected": [{"product": "Cisco Nexus 9000 Series unknown", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco Nexus 9000 Series unknown"}]}], "datePublic": "2018-07-18T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause the device to run low on system memory, which could result in a Denial of Service (DoS) condition on an affected system. The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2018-07-27T09:57:01", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos"}, {"name": "1041348", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1041348"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "ID": "CVE-2018-0372", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco Nexus 9000 Series unknown", "version": {"version_data": [{"version_value": "Cisco Nexus 9000 Series unknown"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the DHCPv6 feature of the Cisco Nexus 9000 Series Fabric Switches in Application-Centric Infrastructure (ACI) Mode could allow an unauthenticated, remote attacker to cause the device to run low on system memory, which could result in a Denial of Service (DoS) condition on an affected system. The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-400"}]}]}, "references": {"reference_data": [{"name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos", "refsource": "CONFIRM", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-20180718-nexus-9000-dos"}, {"name": "1041348", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1041348"}]}}}}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2018-0372", "datePublished": "2018-07-18T23:00:00", "dateReserved": "2017-11-27T00:00:00", "dateUpdated": "2018-07-27T09:57:01", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.0"}

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The vulnerability is due to improper memory management when DHCPv6 packets are received on an interface of the targeted device. An attacker could exploit this vulnerability by sending a high number of malicious DHCPv6 packets to be processed by an affected device. A successful exploit could allow the attacker to cause the system to run low on memory, which could cause an eventual reboot of an affected device. The vulnerability only applies to IPv6 protocol packets and not for IPv4 protocol packets. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI Mode running software version 13.0(1k). The vulnerability can only be exploited when unicast routing is enabled on the Bridge Domain (BD). DHCP and DHCP relay do not have to be configured for the vulnerability to be exploited. Cisco Bug IDs: CSCvg38918."}, {"lang": "es", "value": "Una vulnerabilidad en la caracter\u00edstica DHCPv6 de Cisco Nexus 9000 Series Fabric Switches en modo Application-Centric Infrastructure (ACI) podr\u00eda permitir que un atacante remoto no autenticado provoque que el dispositivo se ejecute en poca memoria del sistema, lo que podr\u00eda resultar en una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un sistema afectado. La vulnerabilidad se debe a una gesti\u00f3n incorrecta de memoria cuando se reciben paquetes DHCPv6 en una interfaz del dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un gran n\u00famero de paquetes DHCPv6 maliciosos para que sean procesados por un dispositivo afectado. Su explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante provoque que el sistema se ejecute con poca memoria, lo que podr\u00eda provocar el reinicio de un dispositivo afectado. La vulnerabilidad solo aplica a los paquetes del protocolo IPv6, no a los del protocolo IPv4. Esta vulnerabilidad afecta a Cisco Nexus 9000 Series Fabric Switches en modo ACI que ejecutan la versi\u00f3n 13.0(1k) del software. La vulnerabilidad solo puede ser explotada cuando se habilita el enrutamiento unicast en el BD (Bridge Domain). Los relays DHCP y DHCP no necesitan estar configurados para explotar la vulnerabilidad. 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