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{
"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"
}
]
}