{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2024-20267", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "state": "PUBLISHED", "assignerShortName": "cisco", "dateReserved": "2023-11-08T15:08:07.624Z", "datePublished": "2024-02-28T16:15:18.044Z", "dateUpdated": "2024-02-28T16:15:18.044Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2024-02-28T16:15:18.044Z"}, "descriptions": [{"lang": "en", "value": "A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. \r\n\r This vulnerability is due to lack of proper error checking when processing an ingress MPLS frame. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that is encapsulated within an MPLS frame to an MPLS-enabled interface of the targeted device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition.\r\n\r Note: The IPv6 packet can be generated multiple hops away from the targeted device and then encapsulated within MPLS. The DoS condition may occur when the NX-OS device processes the packet."}], "affected": [{"vendor": "Cisco", "product": "Cisco NX-OS Software", "versions": [{"version": "6.0(2)A3(1)", "status": "affected"}, {"version": "6.0(2)A3(2)", "status": "affected"}, {"version": "6.0(2)A3(4)", "status": "affected"}, {"version": "6.0(2)A4(1)", "status": "affected"}, {"version": "6.0(2)A4(2)", "status": "affected"}, {"version": "6.0(2)A4(3)", "status": "affected"}, {"version": "6.0(2)A4(4)", "status": "affected"}, {"version": "6.0(2)A4(5)", "status": "affected"}, {"version": "6.0(2)A4(6)", "status": "affected"}, {"version": "6.0(2)A6(1)", "status": "affected"}, {"version": "6.0(2)A6(1a)", "status": "affected"}, {"version": "6.0(2)A6(2)", "status": "affected"}, {"version": "6.0(2)A6(2a)", "status": "affected"}, {"version": "6.0(2)A6(3)", "status": "affected"}, {"version": "6.0(2)A6(3a)", "status": "affected"}, {"version": "6.0(2)A6(4)", "status": "affected"}, {"version": "6.0(2)A6(4a)", "status": "affected"}, {"version": "6.0(2)A6(5)", "status": "affected"}, {"version": "6.0(2)A6(5a)", "status": "affected"}, {"version": "6.0(2)A6(5b)", "status": "affected"}, {"version": "6.0(2)A6(6)", "status": "affected"}, {"version": "6.0(2)A6(7)", "status": "affected"}, {"version": "6.0(2)A6(8)", "status": "affected"}, {"version": "6.0(2)A7(1)", "status": "affected"}, {"version": "6.0(2)A7(1a)", "status": "affected"}, {"version": "6.0(2)A7(2)", "status": "affected"}, {"version": "6.0(2)A7(2a)", "status": "affected"}, {"version": "6.0(2)A8(1)", "status": "affected"}, {"version": "6.0(2)A8(2)", "status": "affected"}, {"version": "6.0(2)A8(3)", "status": "affected"}, {"version": "6.0(2)A8(4)", "status": "affected"}, {"version": "6.0(2)A8(4a)", "status": "affected"}, {"version": "6.0(2)A8(5)", "status": "affected"}, {"version": "6.0(2)A8(6)", "status": "affected"}, {"version": "6.0(2)A8(7)", "status": "affected"}, {"version": "6.0(2)A8(7a)", "status": "affected"}, {"version": "6.0(2)A8(7b)", "status": "affected"}, {"version": "6.0(2)A8(8)", "status": "affected"}, {"version": "6.0(2)A8(9)", "status": "affected"}, {"version": "6.0(2)A8(10a)", "status": "affected"}, {"version": "6.0(2)A8(10)", "status": "affected"}, {"version": "6.0(2)A8(11)", "status": "affected"}, {"version": "6.0(2)A8(11a)", "status": "affected"}, {"version": "6.0(2)A8(11b)", "status": "affected"}, {"version": "6.0(2)U2(1)", "status": "affected"}, {"version": "6.0(2)U2(2)", "status": "affected"}, {"version": "6.0(2)U2(3)", "status": "affected"}, {"version": "6.0(2)U2(4)", "status": "affected"}, {"version": "6.0(2)U2(5)", "status": "affected"}, {"version": "6.0(2)U2(6)", "status": "affected"}, {"version": "6.0(2)U3(1)", "status": "affected"}, {"version": "6.0(2)U3(2)", "status": "affected"}, {"version": "6.0(2)U3(3)", "status": "affected"}, {"version": "6.0(2)U3(4)", "status": "affected"}, {"version": "6.0(2)U3(5)", "status": "affected"}, {"version": "6.0(2)U3(6)", "status": "affected"}, {"version": "6.0(2)U3(7)", "status": "affected"}, {"version": "6.0(2)U3(8)", "status": "affected"}, {"version": "6.0(2)U3(9)", "status": "affected"}, {"version": "6.0(2)U4(1)", "status": "affected"}, {"version": "6.0(2)U4(2)", "status": "affected"}, {"version": "6.0(2)U4(3)", "status": "affected"}, {"version": "6.0(2)U4(4)", "status": "affected"}, {"version": "6.0(2)U5(1)", "status": "affected"}, {"version": "6.0(2)U5(2)", "status": "affected"}, {"version": "6.0(2)U5(3)", "status": "affected"}, {"version": "6.0(2)U5(4)", "status": "affected"}, {"version": "6.0(2)U6(1)", "status": "affected"}, {"version": "6.0(2)U6(2)", "status": "affected"}, {"version": "6.0(2)U6(3)", "status": "affected"}, {"version": "6.0(2)U6(4)", "status": "affected"}, {"version": "6.0(2)U6(5)", "status": "affected"}, {"version": "6.0(2)U6(6)", "status": "affected"}, {"version": "6.0(2)U6(7)", "status": "affected"}, {"version": "6.0(2)U6(8)", "status": "affected"}, {"version": "6.0(2)U6(1a)", "status": "affected"}, {"version": "6.0(2)U6(2a)", "status": "affected"}, {"version": "6.0(2)U6(3a)", "status": "affected"}, {"version": "6.0(2)U6(4a)", "status": "affected"}, {"version": "6.0(2)U6(5a)", "status": "affected"}, {"version": "6.0(2)U6(5b)", "status": "affected"}, {"version": "6.0(2)U6(5c)", "status": "affected"}, {"version": "6.0(2)U6(9)", "status": "affected"}, {"version": "6.0(2)U6(10)", "status": "affected"}, {"version": "6.2(2)", "status": "affected"}, {"version": "6.2(2a)", "status": "affected"}, {"version": "6.2(6)", "status": "affected"}, {"version": "6.2(6b)", "status": "affected"}, {"version": "6.2(8)", "status": "affected"}, {"version": "6.2(8a)", "status": "affected"}, {"version": "6.2(8b)", "status": "affected"}, {"version": "6.2(10)", "status": "affected"}, {"version": "6.2(12)", "status": "affected"}, {"version": "6.2(18)", "status": "affected"}, {"version": "6.2(16)", "status": "affected"}, {"version": "6.2(14)", "status": "affected"}, {"version": "6.2(6a)", "status": "affected"}, {"version": "6.2(20)", "status": "affected"}, {"version": "6.2(20a)", "status": "affected"}, {"version": "6.2(22)", "status": "affected"}, {"version": "6.2(24)", "status": "affected"}, {"version": "6.2(24a)", "status": "affected"}, {"version": "7.0(3)F1(1)", "status": "affected"}, {"version": "7.0(3)F2(1)", "status": "affected"}, {"version": "7.0(3)F2(2)", "status": "affected"}, {"version": "7.0(3)F3(1)", "status": "affected"}, {"version": "7.0(3)F3(2)", "status": "affected"}, {"version": "7.0(3)F3(3)", "status": "affected"}, {"version": "7.0(3)F3(3a)", "status": "affected"}, {"version": "7.0(3)F3(4)", "status": "affected"}, {"version": "7.0(3)F3(3c)", "status": "affected"}, {"version": "7.0(3)F3(5)", "status": "affected"}, {"version": "7.0(3)I2(2a)", "status": "affected"}, {"version": "7.0(3)I2(2b)", "status": "affected"}, {"version": "7.0(3)I2(2c)", "status": "affected"}, {"version": "7.0(3)I2(2d)", "status": "affected"}, {"version": "7.0(3)I2(2e)", "status": "affected"}, {"version": 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{"version": "7.0(3)I5(2)", "status": "affected"}, {"version": "7.0(3)I6(1)", "status": "affected"}, {"version": "7.0(3)I6(2)", "status": "affected"}, {"version": "7.0(3)I7(1)", "status": "affected"}, {"version": "7.0(3)I7(2)", "status": "affected"}, {"version": "7.0(3)I7(3)", "status": "affected"}, {"version": "7.0(3)I7(4)", "status": "affected"}, {"version": "7.0(3)I7(5)", "status": "affected"}, {"version": "7.0(3)I7(5a)", "status": "affected"}, {"version": "7.0(3)I7(6)", "status": "affected"}, {"version": "7.0(3)I7(7)", "status": "affected"}, {"version": "7.0(3)I7(8)", "status": "affected"}, {"version": "7.0(3)I7(9)", "status": "affected"}, {"version": "7.0(3)I7(10)", "status": "affected"}, {"version": "7.1(0)N1(1a)", "status": "affected"}, {"version": "7.1(0)N1(1b)", "status": "affected"}, {"version": "7.1(0)N1(1)", "status": "affected"}, {"version": "7.1(1)N1(1)", "status": "affected"}, {"version": "7.1(2)N1(1)", "status": "affected"}, {"version": "7.1(3)N1(1)", "status": "affected"}, {"version": "7.1(3)N1(2)", "status": "affected"}, {"version": "7.1(4)N1(1)", "status": "affected"}, {"version": "7.1(5)N1(1)", "status": "affected"}, {"version": "7.1(5)N1(1b)", "status": "affected"}, {"version": "7.2(0)D1(1)", "status": "affected"}, {"version": "7.2(1)D1(1)", "status": "affected"}, {"version": "7.2(2)D1(2)", "status": "affected"}, {"version": "7.2(2)D1(1)", "status": "affected"}, {"version": "7.3(0)D1(1)", "status": "affected"}, {"version": "7.3(0)DX(1)", "status": "affected"}, {"version": "7.3(0)N1(1)", "status": "affected"}, {"version": "9.2(1)", "status": "affected"}, {"version": "9.2(2)", "status": "affected"}, {"version": "9.2(2t)", "status": "affected"}, {"version": "9.2(3)", "status": "affected"}, {"version": "9.2(4)", "status": "affected"}, {"version": "9.2(2v)", "status": "affected"}, {"version": "9.3(1)", "status": "affected"}, {"version": "9.3(2)", "status": "affected"}, {"version": "9.3(3)", "status": "affected"}, {"version": "9.3(4)", "status": "affected"}, {"version": "9.3(5)", "status": "affected"}, {"version": "9.3(6)", "status": "affected"}, {"version": "9.3(7)", "status": "affected"}, {"version": "9.3(7a)", "status": "affected"}, {"version": "9.3(8)", "status": "affected"}, {"version": "9.3(9)", "status": "affected"}, {"version": "9.3(10)", "status": "affected"}, {"version": "9.3(11)", "status": "affected"}, {"version": "9.3(12)", "status": "affected"}, {"version": "10.1(1)", "status": "affected"}, {"version": "10.1(2)", "status": "affected"}, {"version": "10.1(2t)", "status": "affected"}, {"version": "10.2(1)", "status": "affected"}, {"version": "10.2(1q)", "status": "affected"}, {"version": "10.2(2)", "status": "affected"}, {"version": "10.2(3)", "status": "affected"}, {"version": "10.2(3t)", "status": "affected"}, {"version": "10.2(4)", "status": "affected"}, {"version": "10.2(5)", "status": "affected"}, {"version": "10.2(3v)", "status": "affected"}, {"version": "10.2(6)", "status": "affected"}, {"version": "10.3(1)", "status": "affected"}, {"version": "10.3(2)", "status": "affected"}, {"version": "10.3(3)", "status": "affected"}, {"version": "10.3(99w)", "status": "affected"}, {"version": "10.3(99x)", "status": "affected"}, {"version": "10.4(1)", "status": "affected"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "type": "cwe", "cweId": "CWE-120"}]}], "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipv6-mpls-dos-R9ycXkwM", "name": "cisco-sa-ipv6-mpls-dos-R9ycXkwM"}], "metrics": [{"format": "cvssV3_1", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "baseScore": 8.6, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}}], "exploits": [{"lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "source": {"advisory": "cisco-sa-ipv6-mpls-dos-R9ycXkwM", "discovery": "EXTERNAL", "defects": ["CSCwh42690", "CSCva52387"]}}}}

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"59AB22C9-34C9-4919-BA80-DFF3E186620F", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:nx-os:10.4\\(1\\):*:*:*:*:*:*:*", "matchCriteriaId": "BE3869F2-3991-4F60-8618-7F491EBFF807", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. \r\n\r This vulnerability is due to lack of proper error checking when processing an ingress MPLS frame. An attacker could exploit this vulnerability by sending a crafted IPv6 packet that is encapsulated within an MPLS frame to an MPLS-enabled interface of the targeted device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition.\r\n\r Note: The IPv6 packet can be generated multiple hops away from the targeted device and then encapsulated within MPLS. The DoS condition may occur when the NX-OS device processes the packet."}, {"lang": "es", "value": "Una vulnerabilidad en el manejo del tr\u00e1fico MPLS para el software Cisco NX-OS podr\u00eda permitir que un atacante remoto no autenticado provoque que el proceso netstack se reinicie inesperadamente, lo que podr\u00eda provocar que el dispositivo deje de procesar el tr\u00e1fico de la red o se recargue. Esta vulnerabilidad se debe a la falta de una verificaci\u00f3n de errores adecuada al procesar una trama MPLS de entrada. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando un paquete IPv6 manipulado y encapsulado dentro de una trama MPLS a una interfaz habilitada para MPLS del dispositivo objetivo. Un exploit exitoso podr\u00eda permitir al atacante provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Nota: El paquete IPv6 se puede generar a varios saltos del dispositivo de destino y luego encapsularse dentro de MPLS. La condici\u00f3n DoS puede ocurrir cuando el dispositivo NX-OS procesa el paquete."}], "id": "CVE-2024-20267", "lastModified": "2024-03-04T22:45:43.893", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "ykramarz@cisco.com", "type": "Secondary"}]}, "published": "2024-02-29T01:43:58.370", "references": [{"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipv6-mpls-dos-R9ycXkwM"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-120"}], "source": "ykramarz@cisco.com", "type": "Secondary"}]}

{}