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A successful exploit could allow the attacker to cause the affected line card to reboot."},{"lang":"es","value":"Una vulnerabilidad en el código de bateo de Capa 2 de Cisco IOS XR Software que se ejecuta en los routers de Servicios de Agregación de la serie Cisco ASR 9000 podría permitir a un atacante adyacente no autenticado causar el reinicio de la tarjeta de línea afectada. Esta vulnerabilidad es debido al manejo incorrecto de determinadas tramas Ethernet que causan un bucle de giro que puede hacer que los procesadores de red no respondan. Un atacante podría explotar esta vulnerabilidad mediante el envío de tipos específicos de tramas Ethernet en el segmento donde están conectadas las tarjetas de línea afectadas. Una explotación con éxito podría permitir al atacante causar el reinicio de la tarjeta de línea afectada"}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.0},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":4.0}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:A/AC:L/Au:N/C:N/I:N/A:C","baseScore":6.1,"accessVector":"ADJACENT_NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE"},"baseSeverity":"MEDIUM","exploitabilityScore":6.5,"impactScore":6.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-399"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-Other"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.3","matchCriteriaId":"E3B5D889-BB78-4A59-9BA8-AE379814DCE1"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.7.1","matchCriteriaId":"95A9FD90-38BC-4DDA-AD94-DECD032AF8D9"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0","versionEndExcluding":"7.0.2","matchCriteriaId":"26088AB3-C36F-4157-941C-8F7F7993457C"},{"vulnerable":true,"criteria":"cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1","versionEndExcluding":"7.1.1","matchCriteriaId":"A9A70D62-3F36-48FD-B4AC-690C23BCAF8A"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000:-:*:*:*:*:*:*:*","matchCriteriaId":"3FEF8271-315F-4756-931F-015F790BE693"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9000v-v2:-:*:*:*:*:*:*:*","matchCriteriaId":"DB91BE23-C710-473F-8E43-0E0DE760F8AD"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9001:-:*:*:*:*:*:*:*","matchCriteriaId":"324C97E6-1810-404F-9F45-6240F99FF039"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9006:-:*:*:*:*:*:*:*","matchCriteriaId":"57EB55BB-41B7-40A1-B6F5-142FE8AB4C16"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9010:-:*:*:*:*:*:*:*","matchCriteriaId":"433F4A82-04A4-4EAA-8C19-F7581DCD8D29"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9901:-:*:*:*:*:*:*:*","matchCriteriaId":"2D5E60AB-94FF-448A-89D8-5D2197E21C74"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9902:-:*:*:*:*:*:*:*","matchCriteriaId":"91474DBC-FB31-4DDF-96C5-311FA1D53A74"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9903:-:*:*:*:*:*:*:*","matchCriteriaId":"FA241214-2F05-4360-9B50-385355E29CF4"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9904:-:*:*:*:*:*:*:*","matchCriteriaId":"A93212A4-50AB-42E7-89A4-5FBBAEA050C3"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9906:-:*:*:*:*:*:*:*","matchCriteriaId":"EDA53A61-98B3-458C-8893-61CD7D6B1E48"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9910:-:*:*:*:*:*:*:*","matchCriteriaId":"F396564E-B477-4A27-A189-CEB737552E25"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9912:-:*:*:*:*:*:*:*","matchCriteriaId":"5445CC54-ACFB-4070-AF26-F91FEAA85181"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asr_9922:-:*:*:*:*:*:*:*","matchCriteriaId":"D7AA58E5-D7E1-48CF-93FF-C60EB85B2BC7"}]}]}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-npspin-QYpwdhFD","source":"psirt@cisco.com","tags":["Vendor Advisory"]},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-npspin-QYpwdhFD","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"]}]}}]}