ghsa-vfmm-gwm9-f9q9
Vulnerability from github
Published
2025-09-23 18:30
Modified
2025-09-23 18:30
Severity ?
6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details

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

net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

aqc111_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular:

  • The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips.
  • A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack.
  • A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data.

Found doing variant analysis. Tested it with another driver (ax88179_178a), since I don't have a aqc111 device to test it, but the code looks very similar.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49051"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:42Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: aqc111: Fix out-of-bounds accesses in RX fixup\n\naqc111_rx_fixup() contains several out-of-bounds accesses that can be\ntriggered by a malicious (or defective) USB device, in particular:\n\n - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds,\n   causing OOB reads and (on big-endian systems) OOB endianness flips.\n - A packet can overlap the metadata array, causing a later OOB\n   endianness flip to corrupt data used by a cloned SKB that has already\n   been handed off into the network stack.\n - A packet SKB can be constructed whose tail is far beyond its end,\n   causing out-of-bounds heap data to be considered part of the SKB\u0027s\n   data.\n\nFound doing variant analysis. Tested it with another driver (ax88179_178a), since\nI don\u0027t have a aqc111 device to test it, but the code looks very similar.",
  "id": "GHSA-vfmm-gwm9-f9q9",
  "modified": "2025-09-23T18:30:20Z",
  "published": "2025-09-23T18:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49051"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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