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CVE-2020-4067

Estado: ModificadaAlta (7.5)—

In coturn before version 4.5.1.3, there is an issue whereby STUN/TURN response buffer is not initialized properly. There is a leak of information between different client connections. One client (an attacker) could use their connection to intelligently query coturn to get interesting bytes in the padding bytes from the connection of another client. This has been fixed in 4.5.1.3.

CVSS

Probabilidad de explotación (EPSS)

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 (5)

Canonical — Ubuntu LinuxCoturn Project — CoturnDebian — Debian LinuxFedoraproject — FedoraOpensuse — Leap

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2020-4067",
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      "value": "En coturn anterior a la versión 4.5.1.3, se presenta un problema por el cual el búfer de respuesta STUN/TURN no se inicializa apropiadamente. Se presenta una fuga de información entre diferentes conexiones de clientes. Un cliente (un atacante) podría usar su conexión para consultar inteligentemente coturn para obtener bytes de interés en los bytes de relleno de la conexión de otro cliente. Esto ha sido corregido en la versión 4.5.1.3"
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