ghsa-c8jq-9f5m-r697
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-11-08 18:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

Show details on source website

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