GHSA-C8JQ-9F5M-R697

Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2024-11-08 18:30
VLAI
Details

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

tipc: guard against string buffer overrun

Smatch reports that copying media_name and if_name to name_parts may overwrite the destination.

.../bearer.c:166 bearer_name_validate() error: strcpy() 'media_name' too large for 'name_parts->media_name' (32 vs 16) .../bearer.c:167 bearer_name_validate() error: strcpy() 'if_name' too large for 'name_parts->if_name' (1010102 vs 16)

This does seem to be the case so guard against this possibility by using strscpy() and failing if truncation occurs.

Introduced by commit b97bf3fd8f6a ("[TIPC] Initial merge")

Compile tested only.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2024-49995"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:19Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntipc: guard against string buffer overrun\n\nSmatch reports that copying media_name and if_name to name_parts may\noverwrite the destination.\n\n .../bearer.c:166 bearer_name_validate() error: strcpy() \u0027media_name\u0027 too large for \u0027name_parts-\u003emedia_name\u0027 (32 vs 16)\n .../bearer.c:167 bearer_name_validate() error: strcpy() \u0027if_name\u0027 too large for \u0027name_parts-\u003eif_name\u0027 (1010102 vs 16)\n\nThis does seem to be the case so guard against this possibility by using\nstrscpy() and failing if truncation occurs.\n\nIntroduced by commit b97bf3fd8f6a (\"[TIPC] Initial merge\")\n\nCompile tested only.",
  "id": "GHSA-c8jq-9f5m-r697",
  "modified": "2024-11-08T18:30:46Z",
  "published": "2024-10-21T18:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12d26aa7fd3cbdbc5149b6e516563478d575026e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ed7f42dfd3edb387034128ca5b0f639836d4ddd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54dae0e9063ed23c9acf8d5ab9b18d3426a8ac18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6555a2a9212be6983d2319d65276484f7c5f431a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80c0be7bcf940ce9308311575c3aff8983c9b97a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8298b6e45fb4d8944f356b08e4ea3e54df5e0488"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a18c7b239d02aafb791ae2c45226f6bb40641792"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c79768ffba5b6e95569a463a69b3101c95694867"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2b2558971e02ca33eb637a8350d68a48b3e8e46"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}



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