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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*", "matchCriteriaId": "E4BC49F2-3DCB-45F0-9030-13F6415EE178", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "CF87CC9A-1AF5-4DB4-ACE5-DB938D3B2F84", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*", "matchCriteriaId": "EB41294E-F3DF-4F1E-A4C8-E90B21A88836", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:ios:15.2:*:*:*:*:*:*:*", "matchCriteriaId": "C2AB6A02-B7C7-48D1-8857-BD1CDF9A40D8", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The PPP implementation in Cisco IOS 12.2 and 15.0 through 15.2, when Point-to-Point Termination and Aggregation (PTA) and L2TP are used, allows remote attackers to cause a denial of service (device crash) via crafted network traffic, aka Bug ID CSCtf71673."}, {"lang": "es", "value": "La implementaci\u00f3n de PPP en Cisco IOS v12.2 y v15.0 hasta v15.2, cuando se utilizan Point-to-Point Termination y Aggregation (PTA) and L2TP, permite a atacantes remotos causar una denegaci\u00f3n de servicio (ca\u00edda de dispositivo) a trav\u00e9s de tr\u00e1fico de la red manipulado, tambi\u00e9n conocido como Bug ID CSCtf71673."}], "id": "CVE-2011-4016", "lastModified": "2025-04-11T00:51:21.963", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 5.4, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:C", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-05-02T10:09:21.817", "references": [{"source": "psirt@cisco.com", "tags": ["Release Notes", "Vendor Advisory"], "url": "http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html"}, {"source": "psirt@cisco.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id?1027005"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "http://www.cisco.com/en/US/docs/ios/15_1/release/notes/151-2TCAVS.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id?1027005"}], "sourceIdentifier": "psirt@cisco.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}, {"lang": "en", "value": "CWE-284"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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