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CVE-2012-5240

Status: ModifiedMedium (5.8)—

Buffer overflow in the dissect_tlv function in epan/dissectors/packet-ldp.c in the LDP dissector in Wireshark 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a malformed packet.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Wireshark — Wireshark

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2012-5240",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2012-10-04T19:55:00.963",
  "references": [
    {
      "url": "http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-ldp.c?r1=44801&r2=44800&pathrev=44801",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://anonsvn.wireshark.org/viewvc?view=revision&revision=44801",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/55754",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1027604",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2012-29.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7046",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7567",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15691",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-ldp.c?r1=44801&r2=44800&pathrev=44801",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://anonsvn.wireshark.org/viewvc?view=revision&revision=44801",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/55754",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1027604",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2012-29.html",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7046",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7567",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15691",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-119"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Buffer overflow in the dissect_tlv function in epan/dissectors/packet-ldp.c in the LDP dissector in Wireshark 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a malformed packet."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de búfer en la función dissect_tlv en epan/dissectors/packet-ldp.c en el \"dissector\" LDP en Wireshark v1.8.x antiores a v1.8.3 permite a atacantes remotos provocar una denegación de servicio (caída de la aplicación) o posiblemente tener otro impacto no especificado a través de un paquete mal formado."
    }
  ],
  "lastModified": "2026-06-16T23:46:29.930",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:wireshark:wireshark:1.8.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "606DF728-1DA6-4989-B40A-44471CC677DB"
            },
            {
              "criteria": "cpe:2.3:a:wireshark:wireshark:1.8.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F824AE6B-B087-4C69-8F73-7B146920FC3C"
            },
            {
              "criteria": "cpe:2.3:a:wireshark:wireshark:1.8.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6702EAA1-7FBD-4755-B7C2-C2B3A1AFF142"
            }
          ],
          "operator": "OR"
        }
      ]
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  ],
  "sourceIdentifier": "cve@mitre.org"
}