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CVE-2024-35915

Estado: ModificadaMedia (5.5)—

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: nfc: nci: corrigió el valor uninit en nci_dev_up y nci_ntf_packet syzbot informó el siguiente problema de acceso al valor uninit [1][2]: nci_rx_work() analiza y procesa el paquete recibido. Cuando la longitud del payload es cero, cada controlador de tipo de mensaje lee el payload no inicializado y KMSAN detecta este problema. La recepción de un paquete con un payload de tamaño cero se considera inesperada y, por lo tanto, dichos paquetes deben descartarse silenciosamente. Este parche resolvió este problema verificando el tamaño del payload antes de llamar a los códigos de controlador de cada tipo de mensaje.

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 (2)

Debian — Debian LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-908"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet\n\nsyzbot reported the following uninit-value access issue [1][2]:\n\nnci_rx_work() parses and processes received packet. When the payload\nlength is zero, each message type handler reads uninitialized payload\nand KMSAN detects this issue. The receipt of a packet with a zero-size\npayload is considered unexpected, and therefore, such packets should be\nsilently discarded.\n\nThis patch resolved this issue by checking payload size before calling\neach message type handler codes."
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    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: nfc: nci: corrigió el valor uninit en nci_dev_up y nci_ntf_packet syzbot informó el siguiente problema de acceso al valor uninit [1][2]: nci_rx_work() analiza y procesa el paquete recibido. Cuando la longitud del payload es cero, cada controlador de tipo de mensaje lee el payload no inicializado y KMSAN detecta este problema. La recepción de un paquete con un payload de tamaño cero se considera inesperada y, por lo tanto, dichos paquetes deben descartarse silenciosamente. Este parche resolvió este problema verificando el tamaño del payload antes de llamar a los códigos de controlador de cada tipo de mensaje."
    }
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  "lastModified": "2026-08-04T11:18:11.050",
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