ghsa-688x-28gq-pm6f
Vulnerability from github
Published
2024-05-21 15:31
Modified
2024-05-21 15:31
Details

In the Linux kernel, the following vulnerability has been resolved:

net/nfc/rawsock.c: fix a permission check bug

The function rawsock_create() calls a privileged function sk_alloc(), which requires a ns-aware check to check net->user_ns, i.e., ns_capable(). However, the original code checks the init_user_ns using capable(). So we replace the capable() with ns_capable().

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47285"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:16Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/nfc/rawsock.c: fix a permission check bug\n\nThe function rawsock_create() calls a privileged function sk_alloc(), which requires a ns-aware check to check net-\u003euser_ns, i.e., ns_capable(). However, the original code checks the init_user_ns using capable(). So we replace the capable() with ns_capable().",
  "id": "GHSA-688x-28gq-pm6f",
  "modified": "2024-05-21T15:31:41Z",
  "published": "2024-05-21T15:31:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47285"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e5cab50208c8fb7351b798cb1d569debfeb994a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/38cb2e23188af29c43966acee9dbb18b62e26cfe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ab78863e9eff11910e1ac8bcf478060c29b379e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90d0a3c76965d7a10fc87c07be3e9714e2130d5c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c08e0be44759d0b5affc5888be4aa5e536873335"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6a21a3fb03300fbaa9fc3ed99f8b0962ce28362"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec72482564ff99c6832d33610d9f8ab7ecc81b6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f3ed12af6bbbaf79eddb0ae14656b8ecacea74f0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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