gsd-2023-6693
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
A stack based buffer overflow was found in the virtio-net device of QEMU. This issue occurs when flushing TX in the virtio_net_flush_tx function if guest features VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 and VIRTIO_NET_F_MRG_RXBUF are enabled. This could allow a malicious user to overwrite local variables allocated on the stack. Specifically, the `out_sg` variable could be used to read a part of process memory and send it to the wire, causing an information leak.
Aliases
Aliases
CVE-2023-6693


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-6693",
    "id": "GSD-2023-6693"
  },
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      "exploitCode": "unknown",
      "remediation": "unknown",
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      "id": "GSD-2023-6693",
      "modified": "2023-12-13T01:20:32.968496Z",
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            "value": "Se encontr\u00f3 un desbordamiento de b\u00fafer en la regi\u00f3n stack de la memoria en el dispositivo virtio-net de QEMU. Este problema ocurre al vaciar TX en la funci\u00f3n virtio_net_flush_tx si las funciones de invitado VIRTIO_NET_F_HASH_REPORT, VIRTIO_F_VERSION_1 y VIRTIO_NET_F_MRG_RXBUF est\u00e1n habilitadas. Esto podr\u00eda permitir que un usuario malintencionado sobrescriba las variables locales asignadas en la pila. Espec\u00edficamente, la variable `out_sg` podr\u00eda usarse para leer una parte de la memoria del proceso y enviarla al cable, provocando una fuga de informaci\u00f3n."
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}


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