{
  "id": "CVE-2023-0266",
  "sourceIdentifier": "cve-coordination@google.com",
  "published": "2023-01-30T14:15:10.500",
  "lastModified": "2025-03-14T15:17:35.193",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use after free vulnerability exists in the ALSA PCM package in the Linux Kernel.\u00a0SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 is missing locks that can be used in a use-after-free that can result in a priviledge escalation to gain ring0 access from the system user. We recommend upgrading past commit\u00a056b88b50565cd8b946a2d00b0c83927b7ebb055e"
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de Use-After-Free en el paquete ALSA PCM en el kernel de Linux. A SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 le faltan bloqueos que se pueden usar en un Use-After-Free que puede resultar en una escalada de privilegios para obtener acceso al anillo 0 por parte del usuario del sistema. Recomendamos actualizar al commit anterior 56b88b50565cd8b946a2d00b0c83927b7ebb055e"
    }
  ],
  "metrics": {
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          "baseScore": 7.9,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.3,
        "impactScore": 6.0
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  "cisaExploitAdd": "2023-03-30",
  "cisaActionDue": "2023-04-20",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Linux Kernel Use-After-Free Vulnerability",
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      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/queue-5.10/alsa-pcm-move-rwsem-lock-inside-snd_ctl_elem_read-to-prevent-uaf.patch?id=72783cf35e6c55bca84c4bb7b776c58152856fd4",
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