FKIE_CVE-2017-6658

Vulnerability from fkie_nvd - Published: 2017-05-16 17:29 - Updated: 2026-06-17 01:22
Severity
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array. The size was off by one making it possible to read past the end of the array with an ether type of 0xFFFF. Increasing the array size solves this problem.
References
psirt@cisco.comhttp://blog.snort.org/2017/05/snort-vulnerabilities-found.htmlThird Party Advisory
psirt@cisco.comhttp://www.securitytracker.com/id/1038483
nvd@nist.govhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170515-snortVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://blog.snort.org/2017/05/snort-vulnerabilities-found.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1038483
Impacted products
Vendor Product Version
cisco sourcefire_snort 3.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "Snort 3.0 All versions prior to build 233.",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Snort 3.0 All versions prior to build 233."
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:sourcefire_snort:3.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "4724070C-D993-45C6-9647-DE420F600D39",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array. The size was off by one making it possible to read past the end of the array with an ether type of 0xFFFF. Increasing the array size solves this problem."
    },
    {
      "lang": "es",
      "value": "Sourcefire Snort de Cisco versi\u00f3n 3.0 anterior a build 233, presenta una Lectura Excesiva de B\u00fafer relacionada con el uso de una matriz del decodificador. El tama\u00f1o estaba cerca de uno haciendo posible leer m\u00e1s all\u00e1 del final de la matriz con un tipo de ether de 0xFFFF. Al aumentar el tama\u00f1o de la matriz, se resuelve este problema."
    }
  ],
  "id": "CVE-2017-6658",
  "lastModified": "2026-06-17T01:22:44.727",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": true,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2017-05-16T17:29:00.417",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://blog.snort.org/2017/05/snort-vulnerabilities-found.html"
    },
    {
      "source": "psirt@cisco.com",
      "url": "http://www.securitytracker.com/id/1038483"
    },
    {
      "source": "nvd@nist.gov",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170515-snort"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://blog.snort.org/2017/05/snort-vulnerabilities-found.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id/1038483"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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