{
  "id": "CVE-2024-49769",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2024-10-29T15:15:12.030",
  "lastModified": "2024-11-21T09:41:49.443",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Waitress is a Web Server Gateway Interface server for Python 2 and 3. When a remote client closes the connection before waitress has had the opportunity to call getpeername() waitress won't correctly clean up the connection leading to the main thread attempting to write to a socket that no longer exists, but not removing it from the list of sockets to attempt to process. This leads to a busy-loop calling the write function. A remote attacker could run waitress out of available sockets with very little resources required. Waitress 3.0.1 contains fixes that remove the race condition."
    },
    {
      "lang": "es",
      "value": "Waitress es un servidor de interfaz de puerta de enlace de servidor web para Python 2 y 3. Cuando un cliente remoto cierra la conexi\u00f3n antes de que waitress haya tenido la oportunidad de llamar a getpeername(), waitress no limpiar\u00e1 correctamente la conexi\u00f3n, lo que lleva al hilo principal a intentar escribir en un socket que ya no existe, pero no lo eliminar\u00e1 de la lista de sockets que se intentar\u00e1n procesar. Esto conduce a un bucle de actividad que llama a la funci\u00f3n de escritura. Un atacante remoto podr\u00eda dejar a waitress sin sockets disponibles y requerir muy pocos recursos. Waitress 3.0.1 contiene correcciones que eliminan la condici\u00f3n de carrera."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      },
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-772"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:agendaless:waitress:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "3.0.1",
              "matchCriteriaId": "BEED9ACE-30D9-4684-B15C-FABCE120401F"
            }
          ]
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  ],
  "references": [
    {
      "url": "https://github.com/Pylons/waitress/commit/1ae4e894c9f76543bee06584001583fc6fa8c95c",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/Pylons/waitress/issues/418",
      "source": "security-advisories@github.com",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://github.com/Pylons/waitress/pull/435",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6",
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2024/11/msg00012.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}