gsd-2018-11796
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.
Aliases
Aliases
CVE-2018-11796


To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-11796",
    "description": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.",
    "id": "GSD-2018-11796",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-11796.html",
      "https://access.redhat.com/errata/RHSA-2019:3892"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-11796"
      ],
      "details": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.",
      "id": "GSD-2018-11796",
      "modified": "2023-12-13T01:22:42.711287Z",
      "schema_version": "1.4.0"
    }
  },
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        "ASSIGNER": "security@apache.org",
        "DATE_PUBLIC": "2018-10-09T00:00:00",
        "ID": "CVE-2018-11796",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Apache Tika",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Apache Tomcat 0.1 to 1.19"
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                    }
                  }
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            "value": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Denial of Service Vulnerability"
              }
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        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "105585",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/105585"
          },
          {
            "name": "https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E",
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          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20190903-0002/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20190903-0002/"
          },
          {
            "name": "RHSA-2019:3892",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:3892"
          }
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "[0.1,1.19.1)",
          "affected_versions": "All versions starting from 0.1 before 1.19.1",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-611",
            "CWE-937"
          ],
          "date": "2021-09-14",
          "description": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later.",
          "fixed_versions": [
            "1.19.1"
          ],
          "identifier": "CVE-2018-11796",
          "identifiers": [
            "GHSA-h8q5-g2cj-qr5h",
            "CVE-2018-11796"
          ],
          "not_impacted": "All versions before 0.1, all versions starting from 1.19.1",
          "package_slug": "maven/org.apache.tika/tika-core",
          "pubdate": "2018-10-17",
          "solution": "Upgrade to version 1.19.1 or above.",
          "title": "Improper Restriction of XML External Entity Reference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-11796",
            "https://access.redhat.com/errata/RHSA-2019:3892",
            "https://github.com/advisories/GHSA-h8q5-g2cj-qr5h",
            "https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E",
            "https://security.netapp.com/advisory/ntap-20190903-0002/",
            "http://www.securityfocus.com/bid/105585"
          ],
          "uuid": "663bb77e-1389-48cf-b10e-6429b4b98681"
        },
        {
          "affected_range": "[0.1,1.19]",
          "affected_versions": "All versions starting from 0.1 up to 1.19",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-611",
            "CWE-937"
          ],
          "date": "2019-09-03",
          "description": "Tika reuses SAXParsers and calls `reset()` after each parse; the parser ignores entity expansion limits after the first parse.",
          "fixed_versions": [
            "1.19.1"
          ],
          "identifier": "CVE-2018-11796",
          "identifiers": [
            "CVE-2018-11796"
          ],
          "not_impacted": "All versions before 0.1, all versions after 1.19",
          "package_slug": "maven/org.apache.tika/tika-parsers",
          "pubdate": "2018-10-09",
          "solution": "Upgrade to version 1.19.1 or above.",
          "title": "Improper Restriction of XML External Entity Reference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2018-11796",
            "http://www.securityfocus.com/bid/105585"
          ],
          "uuid": "bd35d02a-2d17-4993-96a5-c0545f89b747"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:apache:tika:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.19",
                "versionStartIncluding": "0.1",
                "vulnerable": true
              }
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            "operator": "OR"
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          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2018-11796"
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        "description": {
          "description_data": [
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              "value": "In Apache Tika 1.19 (CVE-2018-11761), we added an entity expansion limit for XML parsing. However, Tika reuses SAXParsers and calls reset() after each parse, which, for Xerces2 parsers, as per the documentation, removes the user-specified SecurityManager and thus removes entity expansion limits after the first parse. Apache Tika versions from 0.1 to 1.19 are therefore still vulnerable to entity expansions which can lead to a denial of service attack. Users should upgrade to 1.19.1 or later."
            }
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        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
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        "references": {
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              "name": "https://lists.apache.org/thread.html/88de8350cda9b184888ec294c813c5bd8a2081de8fd3666f8904bc05@%3Cdev.tika.apache.org%3E",
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              "url": "https://access.redhat.com/errata/RHSA-2019:3892"
            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "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
        }
      },
      "lastModifiedDate": "2019-09-03T18:15Z",
      "publishedDate": "2018-10-09T22:29Z"
    }
  }
}


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