ghsa-4832-crwv-4gfx
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()

The function lio_target_nacl_info_show() uses sprintf() in a loop to print details for every iSCSI connection in a session without checking for the buffer length. With enough iSCSI connections it's possible to overflow the buffer provided by configfs and corrupt the memory.

This patch replaces sprintf() with sysfs_emit_at() that checks for buffer boundries.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53676"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show()\n\nThe function lio_target_nacl_info_show() uses sprintf() in a loop to print\ndetails for every iSCSI connection in a session without checking for the\nbuffer length. With enough iSCSI connections it\u0027s possible to overflow the\nbuffer provided by configfs and corrupt the memory.\n\nThis patch replaces sprintf() with sysfs_emit_at() that checks for buffer\nboundries.",
  "id": "GHSA-4832-crwv-4gfx",
  "modified": "2025-10-07T18:31:10Z",
  "published": "2025-10-07T18:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53676"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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