{
  "id": "CVE-2017-5923",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2017-04-03T05:59:00.707",
  "lastModified": "2017-05-02T01:59:02.893",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "libyara/grammar.y in YARA 3.5.0 allows remote attackers to cause a denial of service (heap-based out-of-bounds read and application crash) via a crafted rule that is mishandled in the yara_yyparse function."
    },
    {
      "lang": "es",
      "value": "libyara/grammar.y en YARA 3.5.0 permite a atacantes remotos provocar una denegaci\u00f3n de servicio (lectura basada en memoria din\u00e1mica - lectura basada fuera de los l\u00edmites y ca\u00edda de la aplicaci\u00f3n) a trav\u00e9s de una regla manipulada que no se maneja correctamente en la funci\u00f3n the yara_yyparse."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:virustotal:yara:3.5.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "0254F781-4B89-4557-8F17-1F228A3A8216"
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  ],
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/98080",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/VirusTotal/yara/commit/ab906da53ff2a68c6fd6d1fa73f2b7c7bf0bc636",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://github.com/VirusTotal/yara/issues/597",
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch"
      ]
    }
  ]
}