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CVE-2012-6056

Status: ModifiedMedium (5)—

Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count.

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-2012-6056",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "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": "2012-12-05T11:57:20.037",
  "references": [
    {
      "url": "http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355",
      "tags": [
        "Patch"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://anonsvn.wireshark.org/viewvc?view=revision&revision=45355",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2012-12/msg00022.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2013-01/msg00042.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2014-0341.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2012-33.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7802",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16139",
      "source": "cve@mitre.org"
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    {
      "url": "http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-sctp.c?r1=45355&r2=45354&pathrev=45355",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://anonsvn.wireshark.org/viewvc?view=revision&revision=45355",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2012-12/msg00022.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://lists.opensuse.org/opensuse-updates/2013-01/msg00042.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2014-0341.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.wireshark.org/security/wnpa-sec-2012-33.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7802",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16139",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the dissect_sack_chunk function in epan/dissectors/packet-sctp.c in the SCTP dissector in Wireshark 1.8.x before 1.8.4 allows remote attackers to cause a denial of service (infinite loop) via a crafted Duplicate TSN count."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de entero en la función dissect_sack_chunk en epan/dissectors/packet-sctp.c en el dissector SCTP en Wireshark v1.8.x anterior a v1.8.4 permite a atacantes remotos generar una denegación de servicio (bucle infinito) mediante una Duplicate TSN manipulado."
    }
  ],
  "lastModified": "2026-06-16T23:47:44.323",
  "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"
            },
            {
              "criteria": "cpe:2.3:a:wireshark:wireshark:1.8.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AF6D1967-500E-4E96-A6D2-CE17EA839572"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}