FKIE_CVE-2021-47096

Vulnerability from fkie_nvd - Published: 2024-03-04 18:15 - Updated: 2025-04-08 15:03
Severity ?
4.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: rawmidi - fix the uninitalized user_pversion The user_pversion was uninitialized for the user space file structure in the open function, because the file private structure use kmalloc for the allocation. The kernel ALSA sequencer code clears the file structure, so no additional fixes are required. BugLink: https://github.com/alsa-project/alsa-lib/issues/178
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/39a8fc4971a00d22536aeb7d446ee4a97810611bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b398fcbe4de1e1100867fdb6f447c6fbc8fe7085Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/39a8fc4971a00d22536aeb7d446ee4a97810611bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b398fcbe4de1e1100867fdb6f447c6fbc8fe7085Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
linux linux_kernel 5.16
To clipboard 

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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: rawmidi - fix the uninitalized user_pversion\n\nThe user_pversion was uninitialized for the user space file structure\nin the open function, because the file private structure use\nkmalloc for the allocation.\n\nThe kernel ALSA sequencer code clears the file structure, so no additional\nfixes are required.\n\nBugLink: https://github.com/alsa-project/alsa-lib/issues/178"
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      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ALSA: rawmidi: corrige la user_pversion no inicializada. La user_pversion no se inicializ\u00f3 para la estructura de archivos del espacio de usuario en la funci\u00f3n abierta, porque la estructura privada del archivo usa kmalloc para la asignaci\u00f3n. El c\u00f3digo del secuenciador ALSA del kernel borra la estructura del archivo, por lo que no se requieren correcciones adicionales. Enlace de error: https://github.com/alsa-project/alsa-lib/issues/178"
    }
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  "id": "CVE-2021-47096",
  "lastModified": "2025-04-08T15:03:08.677",
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
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  "published": "2024-03-04T18:15:07.960",
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      "source": "nvd@nist.gov",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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