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CVE-2024-43374

Estado: AnalizadaMedia (4.7)—

The UNIX editor Vim prior to version 9.1.0678 has a use-after-free error in argument list handling. When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free.

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Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678.

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 (3)

Neovim — NeovimNetapp — Bootstrap OSVIM — VIM

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2024-43374",
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          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2024-08-16T16:10:21.274712Z"
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          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "HIGH",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
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      "value": "The UNIX editor Vim prior to version 9.1.0678 has a use-after-free error in argument list handling. When adding a new file to the argument list, this triggers `Buf*` autocommands. If in such an autocommand the buffer that was just opened is closed (including the window where it is shown), this causes the window structure to be freed which contains a reference to the argument list that we are actually modifying. Once the autocommands are completed, the references to the window and argument list are no longer valid and as such cause an use-after-free. Impact is low since the user must either intentionally add some unusual autocommands that wipe a buffer during creation (either manually or by sourcing a malicious plugin), but it will crash Vim. The issue has been fixed as of Vim patch v9.1.0678."
    },
    {
      "lang": "es",
      "value": " El editor UNIX Vim anterior a la versión 9.1.0678 tiene un error de use-after-free en el manejo de la lista de argumentos. Al agregar un nuevo archivo a la lista de argumentos, esto activa los comandos automáticos `Buf*`. Si en dicho autocomando se cierra el búfer que se acaba de abrir (incluida la ventana donde se muestra), esto hace que se libere la estructura de la ventana que contiene una referencia a la lista de argumentos que actualmente estamos modificando. Una vez que se completan los comandos automáticos, las referencias a la ventana y la lista de argumentos ya no son válidas y, como tales, provocan un uuse-after-free. El impacto es bajo ya que el usuario debe agregar intencionalmente algunos comandos automáticos inusuales que borran un búfer durante la creación (ya sea manualmente o obteniendo un complemento malicioso), pero Vim fallará. El problema se solucionó a partir del parche Vim v9.1.0678."
    }
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  "lastModified": "2026-06-17T07:50:54.520",
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