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CVE-2021-47393

🗓️ 21 May 2024 15:03:50Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 187 Views

In Linux kernel, the recent CVE-2021-47393 resolves a vulnerability in the mlxreg-fan driver which could allow for out of bounds access when enforcing fan speed from sysfs, likely resulting in a denial of service

Related
Detection
Affected
Refs
NVD
Vulners
CNA
Node
linuxlinux_kernelRange4.194.19.209
OR
linuxlinux_kernelRange4.205.4.151
OR
linuxlinux_kernelRange5.55.10.71
OR
linuxlinux_kernelRange5.115.14.10
OR
linuxlinux_kernelMatch5.15rc1
OR
linuxlinux_kernelMatch5.15rc2
OR
linuxlinux_kernelMatch5.15rc3
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/hwmon/mlxreg-fan.c"
    ],
    "versions": [
      {
        "version": "65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6",
        "lessThan": "5c6e0bce647d9cb32a17d58ffa669b3421fcc6ca",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6",
        "lessThan": "a6c42ae1530f94724d3c42cf91fe3d3c5e394f8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6",
        "lessThan": "76bbb482d33bfcd7e9070ecf594c9ec73e01c930",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6",
        "lessThan": "aa85fb7bde558bb2e364e85976b14b259c8b6fe8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "65afb4c8e7e4e7e74b28efa1df62da503ca3e7a6",
        "lessThan": "e6fab7af6ba1bc77c78713a83876f60ca7a4a064",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/hwmon/mlxreg-fan.c"
    ],
    "versions": [
      {
        "version": "4.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.209",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.151",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.71",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.14.10",
        "lessThanOrEqual": "5.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 13:53Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.1
EPSS0.00054
SSVC
187