CVE-2023-29483

Estado: ModificadaAlta (7)—
eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.
CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Puntuación base: 7
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.86%
Percentil entre todas las CVEs puntuadas: 79
Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (4)

Dnspython — Dnspython Eventlet — Eventlet Fedoraproject — Fedora Netapp — Bootstrap OS
CWE

CWE-292
Referencias

JSON original (NVD)

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      "value": "eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a \"TuDoor\" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1."
    },
    {
      "lang": "es",
      "value": "eventlet anterior a 0.35.2, como se usa en dnspython anterior a 2.6.0, permite a atacantes remotos interferir con la resolución de nombres DNS enviando rápidamente un paquete no válido desde la dirección IP y el puerto de origen esperados, también conocido como un ataque \"TuDoor\". En otras palabras, dnspython no tiene el comportamiento preferido en el que procedería el algoritmo de resolución de nombres DNS, dentro de la ventana de tiempo completa, para esperar un paquete válido. NOTA: dnspython 2.6.0 no se puede utilizar por un motivo diferente al que se abordó en 2.6.1."
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