ghsa-33fw-34vg-hgjh
Vulnerability from github
Published
2024-08-22 06:30
Modified
2024-11-08 18:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

CDC-NCM: avoid overflow in sanity checking

A broken device may give an extreme offset like 0xFFF0 and a reasonable length for a fragment. In the sanity check as formulated now, this will create an integer overflow, defeating the sanity check. Both offset and offset + len need to be checked in such a manner that no overflow can occur. And those quantities should be unsigned.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48938"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-22T04:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nCDC-NCM: avoid overflow in sanity checking\n\nA broken device may give an extreme offset like 0xFFF0\nand a reasonable length for a fragment. In the sanity\ncheck as formulated now, this will create an integer\noverflow, defeating the sanity check. Both offset\nand offset + len need to be checked in such a manner\nthat no overflow can occur.\nAnd those quantities should be unsigned.",
  "id": "GHSA-33fw-34vg-hgjh",
  "modified": "2024-11-08T18:30:43Z",
  "published": "2024-08-22T06:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48938"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49909c9f8458cacb5b241106cba65aba5a6d8f4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69560efa001397ebb8dc1c3e6a3ce00302bb9f7f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b737e47b87589031f0d4657f6d7b0b770474925"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8d2b1a1ec9f559d30b724877da4ce592edc41fdc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9957fbf34f52a4d8945d1bf39aae400ef9a11246"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a612395c7631918e0e10ea48b9ce5ab4340f26a6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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