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CVE-2017-7746

Estado: ModificadaAlta (7.5)—

En Wireshark 2.2.0 a 2.2.5 y 2.0.0 a 2.0.11, el disector SLSK podría entrar en un bucle infinito, desencadenado por un paquete de inyección o un archivo de captura mal formado. Esto se trató en epan/dissectors/packet-slsk.c añadiendo controles para la longitud restante.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Debian — Debian LinuxWireshark — Wireshark

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-7746",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-04-12T23:59:00.417",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/97635",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13576",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
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      "url": "https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=58e69cc769dea24b721abd8a29f9eedc11024b7e",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.wireshark.org/security/wnpa-sec-2017-19.html",
      "tags": [
        "Vendor Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/97635",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13576",
      "tags": [
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        "Patch",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=58e69cc769dea24b721abd8a29f9eedc11024b7e",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.wireshark.org/security/wnpa-sec-2017-19.html",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the SLSK dissector could go into an infinite loop, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-slsk.c by adding checks for the remaining length."
    },
    {
      "lang": "es",
      "value": "En Wireshark 2.2.0 a 2.2.5 y 2.0.0 a 2.0.11, el disector SLSK podría entrar en un bucle infinito, desencadenado por un paquete de inyección o un archivo de captura mal formado. Esto se trató en epan/dissectors/packet-slsk.c añadiendo controles para la longitud restante."
    }
  ],
  "lastModified": "2026-06-17T01:25:06.493",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}