ghsa-rcqh-96hr-hv69
Vulnerability from github
Published
2024-11-19 03:31
Modified
2024-11-23 03:31
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Details

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

usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()

The "*cmd" variable can be controlled by the user via debugfs. That means "new_cam" can be as high as 255 while the size of the uc->updated[] array is UCSI_MAX_ALTMODES (30).

The call tree is: ucsi_cmd() // val comes from simple_attr_write_xsigned() -> ucsi_send_command() -> ucsi_send_command_common() -> ucsi_run_command() // calls ucsi->ops->sync_control() -> ucsi_ccg_sync_control()

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50268"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:28Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()\n\nThe \"*cmd\" variable can be controlled by the user via debugfs.  That means\n\"new_cam\" can be as high as 255 while the size of the uc-\u003eupdated[] array\nis UCSI_MAX_ALTMODES (30).\n\nThe call tree is:\nucsi_cmd() // val comes from simple_attr_write_xsigned()\n-\u003e ucsi_send_command()\n   -\u003e ucsi_send_command_common()\n      -\u003e ucsi_run_command() // calls ucsi-\u003eops-\u003esync_control()\n         -\u003e ucsi_ccg_sync_control()",
  "id": "GHSA-rcqh-96hr-hv69",
  "modified": "2024-11-23T03:31:57Z",
  "published": "2024-11-19T03:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50268"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3a2ba841659a0f15102585120dea75d8d5209616"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/604314ecd682913925980dc955caea2d036eab5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69e19774f15e12dda6c6c58001d059e30895009b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7dd08a0b4193087976db6b3ee7807de7e8316f96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f47984b35f3be0cfc652c2ca358d5768ea3456b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d76923164705821aa1b01b8d9d1741f20c654ab4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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