{
  "id": "CVE-2018-14404",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2018-07-19T13:29:00.480",
  "lastModified": "2020-09-10T01:15:14.097",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "A NULL pointer dereference vulnerability exists in the xpath.c:xmlXPathCompOpEval() function of libxml2 through 2.9.8 when parsing an invalid XPath expression in the XPATH_OP_AND or XPATH_OP_OR case. Applications processing untrusted XSL format inputs with the use of the libxml2 library may be vulnerable to a denial of service attack due to a crash of the application."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de desreferencia de puntero NULL en la funci\u00f3n xpath.c:xmlXPathCompOpEval() de libxml2 hasta la versi\u00f3n 2.9.8 al analizar una expresi\u00f3n XPath inv\u00e1lida en los casos XPATH_OP_AND o XPATH_OP_OR. Las aplicaciones que procesan entradas de formato XLS no fiables mediante la biblioteca libxml2 podr\u00edan ser vulnerables a un ataque de denegaci\u00f3n de servicio (DoS) debido al cierre inesperado de la aplicaci\u00f3n."
    }
  ],
  "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": true,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*",
              "matchCriteriaId": "8D305F7A-D159-4716-AB26-5E38BB5CD991"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "B5A6F2F3-4894-4392-8296-3B8DD2679084"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:debian:debian_linux:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "5920923E-0D52-44E5-801D-10B82846ED58"
            }
          ]
        }
      ]
    },
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "2.9.8",
              "matchCriteriaId": "E5F41D62-474C-43C8-BEB5-F1827DFCDEA0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2019:1543",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=901817",
      "source": "cve@mitre.org",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1595985",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://gitlab.gnome.org/GNOME/libxml2/issues/10",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20190719-0002/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3739-1/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://usn.ubuntu.com/3739-2/",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    }
  ]
}