ghsa-557r-rm2w-qvrj
Vulnerability from github
Published
2024-08-07 18:30
Modified
2024-08-08 15:31
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:

usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()

Userspace provided string 's' could trivially have the length zero. Left unchecked this will firstly result in an OOB read in the form if (str[0 - 1] == '\n') followed closely by an OOB write in the formstr[0 - 1] = '\0'`.

There is already a validating check to catch strings that are too long. Let's supply an additional check for invalid strings that are too short.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-42236"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-07T16:15:46Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Prevent OOB read/write in usb_string_copy()\n\nUserspace provided string \u0027s\u0027 could trivially have the length zero. Left\nunchecked this will firstly result in an OOB read in the form\n`if (str[0 - 1] == \u0027\\n\u0027) followed closely by an OOB write in the form\n`str[0 - 1] = \u0027\\0\u0027`.\n\nThere is already a validating check to catch strings that are too long.\nLet\u0027s supply an additional check for invalid strings that are too short.",
  "id": "GHSA-557r-rm2w-qvrj",
  "modified": "2024-08-08T15:31:29Z",
  "published": "2024-08-07T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42236"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d16f63d8030903e5031853e79d731ee5d474e70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d3c721e686ea6c59e18289b400cc95c76e927e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a444c3fc264119801575ab086e03fb4952f23fd0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c95fbdde87e39e5e0ae27f28bf6711edfb985caa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1205033e912f9332c1dbefa812e6ceb0575ce0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8474a10c535e6a2024c3b06e37e4a3a23beb490"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eecfefad0953b2f31aaefa058f7f348ff39c4bba"
    }
  ],
  "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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