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CVE-2020-27830

Estado: ModificadaMedia (5.5)—

Se encontró una vulnerabilidad en el kernel de Linux donde, en la función spk_ttyio_receive_buf2(), podría desreferenciar spk_ttyio_synth sin comprobar si es NULL o no, y puede conllevar a un bloqueo deref de NULL-ptr

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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  "id": "CVE-2020-27830",
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          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
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  "affected": [
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      "affectedData": [
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  "published": "2021-05-13T15:15:07.577",
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  "vulnStatus": "Modified",
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          "value": "CWE-476"
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    {
      "lang": "en",
      "value": "A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash."
    },
    {
      "lang": "es",
      "value": "Se encontró una vulnerabilidad en el kernel de Linux donde, en la función spk_ttyio_receive_buf2(), podría desreferenciar spk_ttyio_synth sin comprobar si es NULL o no, y puede conllevar a un bloqueo deref de NULL-ptr"
    }
  ],
  "lastModified": "2026-06-17T03:09:42.120",
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