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CVE-2024-32018

Estado: AnalizadaCrítica (9)—

RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit and 32-bit microcontrollers. Most codebases define assertion macros which compile to a no-op on non-debug builds. If assertions are the only line of defense against untrusted input, the software may be exposed to attacks that leverage the lack of proper input checks. In detail, in the `nimble_scanlist_update()` function below, `len` is checked in an assertion and subsequently used in a call to `memcpy()`.

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If an attacker is able to provide a larger `len` value while assertions are compiled-out, they can write past the end of the fixed-length `e->ad` buffer. If the unchecked input above is attacker-controlled and crosses a security boundary, the impact of the buffer overflow vulnerability could range from denial of service to arbitrary code execution. This issue has not yet been patched. Users are advised to add manual `len` checking.

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)

Riot-os — Riot

CWE

Referencias

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      "value": "RIOT is a real-time multi-threading operating system that supports a range of devices that are typically 8-bit, 16-bit and 32-bit microcontrollers. Most codebases define assertion macros which compile to a no-op on non-debug builds. If assertions are the only line of defense against untrusted input, the software may be exposed to attacks that leverage the lack of proper input checks. In detail, in the `nimble_scanlist_update()` function below, `len` is checked in an assertion and subsequently used in a call to `memcpy()`. If an attacker is able to provide a larger `len` value while assertions are compiled-out, they can write past the end of the fixed-length `e->ad` buffer. If the unchecked input above is attacker-controlled and crosses a security boundary, the impact of the buffer overflow vulnerability could range from denial of service to arbitrary code execution. This issue has not yet been patched. Users are advised to add manual `len` checking."
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      "value": "RIOT es un sistema operativo multiproceso en tiempo real que admite una variedad de dispositivos que suelen ser microcontroladores de 8, 16 y 32 bits. La mayoría de las bases de código definen macros de aserción que se compilan sin operación en compilaciones que no son de depuración. Si las afirmaciones son la única línea de defensa contra entradas que no son de confianza, el software puede quedar expuesto a ataques que aprovechen la falta de comprobaciones de entrada adecuadas. En detalle, en la función `nimble_scanlist_update()` siguiente, `len` se verifica en una aserción y posteriormente se usa en una llamada a `memcpy()`. Si un atacante puede proporcionar un valor `len` mayor mientras se compilan las afirmaciones, puede escribir más allá del final del búfer `e-&gt;ad` de longitud fija. Si la entrada no verificada anterior está controlada por un atacante y cruza un límite de seguridad, el impacto de la vulnerabilidad de desbordamiento del búfer podría variar desde denegación de servicio hasta ejecución de código arbitrario. Este problema aún no se ha solucionado. Se recomienda a los usuarios que agreguen la verificación manual de \"len\"."
    }
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  "lastModified": "2026-06-17T07:29:07.747",
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