GSD-2018-20843

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Aliases
Aliases

{
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    "description": "In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).",
    "id": "GSD-2018-20843",
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      "https://www.debian.org/security/2019/dsa-4472",
      "https://access.redhat.com/errata/RHSA-2020:4846",
      "https://access.redhat.com/errata/RHSA-2020:4484",
      "https://access.redhat.com/errata/RHSA-2020:3952",
      "https://access.redhat.com/errata/RHSA-2020:2646",
      "https://access.redhat.com/errata/RHSA-2020:2644",
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      "https://alas.aws.amazon.com/cve/html/CVE-2018-20843.html",
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    ]
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  "gsd": {
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      "exploitCode": "unknown",
      "remediation": "unknown",
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      "modified": "2023-12-13T01:22:29.513122Z",
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            "CWE-611",
            "CWE-937"
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          "date": "2019-06-26",
          "description": "`libexpat` in Expat, XML input including XML names that contain many colons could make the XML parser consume a high amount of RAM and CPU resources while processing, leading to a possible denial-of-service attack.",
          "fixed_versions": [
            "2.3.0"
          ],
          "identifier": "CVE-2018-20843",
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          "not_impacted": "All versions starting from 2.2.7",
          "package_slug": "npm/node-expat",
          "pubdate": "2019-06-24",
          "solution": "Upgrade to version 2.3.0 or above.",
          "title": "Improper Restriction of XML External Entity Reference",
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.8,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
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          "userInteractionRequired": false
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        "baseMetricV3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "exploitabilityScore": 3.9,
          "impactScore": 3.6
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      },
      "lastModifiedDate": "2022-04-18T17:17Z",
      "publishedDate": "2019-06-24T17:15Z"
    }
  }
}



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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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