FKIE_CVE-2018-0471

Vulnerability from fkie_nvd - Published: 2018-10-05 14:29 - Updated: 2024-11-21 03:38
Severity ?
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the Cisco Discovery Protocol (CDP) module of Cisco IOS XE Software Releases 16.6.1 and 16.6.2 could allow an unauthenticated, adjacent attacker to cause a memory leak that may lead to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain CDP packets. An attacker could exploit this vulnerability by sending certain CDP packets to an affected device. A successful exploit could cause an affected device to continuously consume memory and eventually result in a memory allocation failure that leads to a crash, triggering a reload of the affected device.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/105398Third Party Advisory, VDB Entry
psirt@cisco.comhttp://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-memleakVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105398Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1041737Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-memleakVendor Advisory
Impacted products
Vendor Product Version
cisco ios_xe 16.6.1
cisco ios_xe 16.6.2
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.6.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "F821EBD7-91E2-4460-BFAF-18482CF6CB8C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios_xe:16.6.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "E36D2D24-8F63-46DE-AC5F-8DE33332EBC6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the Cisco Discovery Protocol (CDP) module of Cisco IOS XE Software Releases 16.6.1 and 16.6.2 could allow an unauthenticated, adjacent attacker to cause a memory leak that may lead to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain CDP packets. An attacker could exploit this vulnerability by sending certain CDP packets to an affected device. A successful exploit could cause an affected device to continuously consume memory and eventually result in a memory allocation failure that leads to a crash, triggering a reload of the affected device."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el m\u00f3dulo Cisco Discovery Protocol (CDP) de Cisco IOS XE en versiones de software 16.6.1 y 16.6.2 podr\u00eda permitir que un atacante adyacente sin autenticar provoque una fuga de memoria que podr\u00eda conducir a una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a un procesamiento incorrecto de ciertos paquetes CDP. Un atacante podr\u00eda explotar esta vulnerabilidad enviando ciertos paquetes CDP a un dispositivo afectado. Su explotaci\u00f3n con \u00e9xito podr\u00eda provocar que un dispositivo afectado consuma continuamente memoria y, finalmente, resulte en un error de asignaci\u00f3n de memoria que conduce a un cierre inesperado, desencadenando la recarga del dispositivo afectado."
    }
  ],
  "id": "CVE-2018-0471",
  "lastModified": "2024-11-21T03:38:18.187",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 4.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-10-05T14:29:04.920",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/105398"
    },
    {
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      "tags": [
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      "url": "http://www.securitytracker.com/id/1041737"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
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      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-memleak"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://www.securityfocus.com/bid/105398"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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      "url": "http://www.securitytracker.com/id/1041737"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-memleak"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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