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CVE-2018-3878

Estado: ModificadaCrítica (9.9)—

Multiple exploitable buffer overflow vulnerabilities exist in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. A strncpy overflows the destination buffer, which has a size of 16 bytes. An attacker can send an arbitrarily long "region" value in order to exploit this vulnerability.

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)

Samsung — Sth-eth-250 Firmware

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-3878",
  "cveTags": [],
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          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "authentication": "SINGLE",
          "integrityImpact": "COMPLETE",
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  "published": "2018-08-23T15:29:00.867",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "value": "Multiple exploitable buffer overflow vulnerabilities exist in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250 devices with firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. A strncpy overflows the destination buffer, which has a size of 16 bytes. An attacker can send an arbitrarily long \"region\" value in order to exploit this vulnerability."
    },
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      "lang": "es",
      "value": "Existen múltiples desbordamientos de búfer explotables en el manipulador de credenciales del servidor HTTP de video-core de los dispositivos Samsung SmartThings Hub STH-ETH-250 en su versión de firmware 0.20.17. El proceso video-core extrae incorrectamente campos de una carga útil JSON controlada por el usuario, conduciendo a un desbordamiento de búfer en la pila. Un strncpy desborda el búfer de destino, el cual tiene un tamaño de 16 bytes. Un atacante puede enviar un valor \"region\" arbitrariamente largo para explotar esta vulnerabilidad."
    }
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  "lastModified": "2026-06-17T01:57:56.887",
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