{
  "id": "CVE-2009-2055",
  "sourceIdentifier": "psirt@cisco.com",
  "published": "2009-08-19T17:30:01.047",
  "lastModified": "2025-01-06T19:08:16.263",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco IOS XR 3.4.0 through 3.8.1 allows remote attackers to cause a denial of service (session reset) via a BGP UPDATE message with an invalid attribute, as demonstrated in the wild on 17 August 2009."
    },
    {
      "lang": "es",
      "value": "Cisco IOS XR desde la v3.4.0 hasta la v3.8.1 permite a atacantes remotos producir una denegaci\u00f3n de servicio (reset de sesi\u00f3n) a trav\u00e9s de el mensaje BGP UPDATE con un atributo invalido, como se demostr\u00f3 el 17 de Agosto de 2009."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "cisaExploitAdd": "2022-03-25",
  "cisaActionDue": "2022-04-15",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability",
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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            },
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            },
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            },
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              "vulnerable": true,
              "criteria": "cpe:2.3:o:cisco:ios_xr:3.7.0:*:*:*:*:*:*:*",
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  ],
  "references": [
    {
      "url": "http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html",
      "source": "psirt@cisco.com",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "http://securitytracker.com/id?1022739",
      "source": "psirt@cisco.com",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml",
      "source": "psirt@cisco.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ]
    },
    {
      "url": "http://securitytracker.com/id?1022739",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}