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CVE-2025-64438

Estado: AnalizadaBaja (1.7)—

Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group ). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast -DDS when processing RTPS GAP submessages under RELIABLE QoS.

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By sending a tiny GAP packet with a huge gap range (`gapList .base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s equence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. No authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS limit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t he issue.

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 (1)

Eprosima — Fast DDS

CWE

Referencias

JSON original (NVD)

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      "value": "Fast DDS is a C++ implementation of the DDS (Data Distribution Service) standard of the OMG (Object Management Group\n). Prior to versions 3.4.1, 3.3.1, and 2.6.11, a remotely triggerable Out-of-Memory (OOM) denial-of-service exists in Fast\n-DDS when processing RTPS GAP submessages under RELIABLE QoS. By sending a tiny GAP packet with a huge gap range (`gapList\n.base - gapStart`), an attacker drives `StatefulReader::processGapMsg()` into an unbounded loop that inserts millions of s\nequence numbers into `WriterProxy::changes_received_` (`std::set`), causing multi-GB heap growth and process termination. \nNo authentication is required beyond network reachability to the reader on the DDS domain. In environments without an RSS \nlimit (non-ASan / unlimited), memory consumption was observed to rise to ~64 GB. Versions 3.4.1, 3.3.1, and 2.6.11 patch t\nhe issue."
    },
    {
      "lang": "es",
      "value": "Fast DDS es una implementación en C++ del estándar DDS (Data Distribution Service) de la OMG (Object Management Group). Antes de las versiones 3.4.1, 3.3.1 y 2.6.11, existe una denegación de servicio por falta de memoria (OOM) que puede ser activada remotamente en Fast-DDS al procesar submensajes RTPS GAP bajo QoS RELIABLE. Al enviar un pequeño paquete GAP con un enorme rango de brecha ('gapList.base - gapStart'), un atacante lleva a 'StatefulReader::processGapMsg()' a un bucle ilimitado que inserta millones de números de secuencia en 'WriterProxy::changes_received_' ('std::set'), causando un crecimiento de la pila de varios GB y la terminación del proceso. No se requiere autenticación más allá de la accesibilidad de red al lector en el dominio DDS. En entornos sin un límite de RSS (no-ASan / ilimitado), se observó que el consumo de memoria aumentaba a ~64 GB. Las versiones 3.4.1, 3.3.1 y 2.6.11 corrigen el problema."
    }
  ],
  "lastModified": "2026-06-17T09:54:23.157",
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