ghsa-p577-8xfh-jm39
Vulnerability from github
Published
2025-07-28 12:30
Modified
2025-11-19 18:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

iio: backend: fix out-of-bound write

The buffer is set to 80 character. If a caller write more characters, count is truncated to the max available space in "simple_write_to_buffer". But afterwards a string terminator is written to the buffer at offset count without boundary check. The zero termination is written OUT-OF-BOUND.

Add a check that the given buffer is smaller then the buffer to prevent.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38484"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-28T12:15:30Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: backend: fix out-of-bound write\n\nThe buffer is set to 80 character. If a caller write more characters,\ncount is truncated to the max available space in \"simple_write_to_buffer\".\nBut afterwards a string terminator is written to the buffer at offset count\nwithout boundary check. The zero termination is written OUT-OF-BOUND.\n\nAdd a check that the given buffer is smaller then the buffer to prevent.",
  "id": "GHSA-p577-8xfh-jm39",
  "modified": "2025-11-19T18:31:17Z",
  "published": "2025-07-28T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38484"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01e941aa7f5175125df4ac5d3aab099961525602"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6eea9f7648ddb9e4903735a1f77cf196c957aa38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da9374819eb3885636934c1006d450c3cb1a02ed"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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