fkie_cve-2021-47207
Vulnerability from fkie_nvd
Published
2024-04-10 19:15
Modified
2025-01-13 20:42
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: gus: fix null pointer dereference on pointer block The pointer block return from snd_gf1_dma_next_block could be null, so there is a potential null pointer dereference issue. Fix this by adding a null check before dereference.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5bePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/16721797dcef2c7c030ffe73a07f39a65f9323c3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1ac6cd87d8ddd36c43620f82c4d65b058f725f0fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3e28e083dcdf03a18a083f8a47b6bb6b1604b5bePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/542fa721594a02d2aee0370a764d306ef48d030cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0d21bb3279476c777434c40d969ea88ca64f9aaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ab4c1ebc40f699f48346f634d7b72b9c5193f315Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c6d2cefdd05c4810c416fb8d384b5c377bd977bcPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cb09c760c201f82df83babc92a5ffea0a01807fcPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: gus: fix null pointer dereference on pointer block\n\nThe pointer block return from snd_gf1_dma_next_block could be\nnull, so there is a potential null pointer dereference issue.\nFix this by adding a null check before dereference."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: gus: corrige la desreferencia de puntero nulo en el bloque de puntero El bloque de puntero devuelto por snd_gf1_dma_next_block podr\u00eda ser nulo, por lo que existe un posible problema de desreferencia de puntero nulo. Solucione esto agregando una verificaci\u00f3n nula antes de la desreferencia."
    }
  ],
  "id": "CVE-2021-47207",
  "lastModified": "2025-01-13T20:42:37.580",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2024-04-10T19:15:48.400",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
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      "source": "nvd@nist.gov",
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}


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