FKIE_CVE-2023-4540

Vulnerability from fkie_nvd - Published: 2023-09-05 08:15 - Updated: 2025-04-04 19:15
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. Such a request causes the program to enter an infinite loop. This issue affects lua-http: all versions before commit ddab283.
References
cvd@cert.plhttps://cert.pl/en/posts/2023/09/CVE-2023-4540/
cvd@cert.plhttps://cert.pl/posts/2023/09/CVE-2023-4540/Patch, Third Party Advisory
cvd@cert.plhttps://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6Patch
af854a3a-2127-422b-91ae-364da2661108https://cert.pl/posts/2023/09/CVE-2023-4540/Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/daurnimator/lua-http/commit/ddab2835c583d45dec62680ca8d3cbde55e0bae6Patch
af854a3a-2127-422b-91ae-364da2661108https://https://cert.pl/en/posts/2023/09/CVE-2023-4540/
Impacted products
Vendor Product Version
daurnimator lua-http 0.4
To clipboard 

{
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    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:daurnimator:lua-http:0.4:*:*:*:*:lua:*:*",
              "matchCriteriaId": "D337EBD6-A704-44C0-8533-1EA9B5366780",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Handling of Exceptional Conditions vulnerability in Daurnimator lua-http library allows Excessive Allocation and a denial of service (DoS) attack to be executed by sending a properly crafted request to the server. \nSuch a request causes the program to enter an infinite loop. \n\nThis issue affects lua-http: all versions before commit ddab283."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Manejo Inadecuado de Condiciones Excepcionales en la librer\u00eda lua-http de Daurnimator permite la asignaci\u00f3n excesiva y la ejecuci\u00f3n de un ataque de Denegaci\u00f3n de Servicio (DoS)  mediante el env\u00edo de una petici\u00f3n correctamente manipulada al servidor. Este problema afecta a lua-http: todas las versiones anteriores al commit ddab283. "
    }
  ],
  "id": "CVE-2023-4540",
  "lastModified": "2025-04-04T19:15:45.653",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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      {
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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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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
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  "published": "2023-09-05T08:15:40.017",
  "references": [
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      "source": "cvd@cert.pl",
      "url": "https://cert.pl/en/posts/2023/09/CVE-2023-4540/"
    },
    {
      "source": "cvd@cert.pl",
      "tags": [
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      "url": "https://cert.pl/posts/2023/09/CVE-2023-4540/"
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  "sourceIdentifier": "cvd@cert.pl",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
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      "source": "cvd@cert.pl",
      "type": "Secondary"
    },
    {
      "description": [
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          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • 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.


Detection rules are retrieved from Rulezet.