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CVE-2017-13011

Status: ModifiedCritical (9.8)—

Several protocol parsers in tcpdump before 4.9.2 could cause a buffer overflow in util-print.c:bittok2str_internal().

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)

Tcpdump — Tcpdump

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2017-13011",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/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": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-09-14T06:29:01.670",
  "references": [
    {
      "url": "http://www.debian.org/security/2017/dsa-3971",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1039307",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.tcpdump.org/tcpdump-changes.txt",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://access.redhat.com/errata/RHEA-2018:0705",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/the-tcpdump-group/tcpdump/commit/9f0730bee3eb65d07b49fd468bc2f269173352fe",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201709-23",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.apple.com/HT208221",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2017/dsa-3971",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1039307",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.tcpdump.org/tcpdump-changes.txt",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHEA-2018:0705",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/the-tcpdump-group/tcpdump/commit/9f0730bee3eb65d07b49fd468bc2f269173352fe",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201709-23",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.apple.com/HT208221",
      "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": "Several protocol parsers in tcpdump before 4.9.2 could cause a buffer overflow in util-print.c:bittok2str_internal()."
    },
    {
      "lang": "es",
      "value": "Varios analizadores sintácticos de protocolos en tcpdump en versiones anteriores a la 4.9.2 podrían provocar un desbordamiento de búfer en util-print.c:bittok2str_internal()."
    }
  ],
  "lastModified": "2026-06-17T01:04:19.943",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "15620492-1343-4632-A942-281535A101B7",
              "versionEndIncluding": "4.9.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}