ghsa-p8g8-q26r-2q2r
Vulnerability from github
Published
2024-09-13 06:30
Modified
2024-09-19 18:30
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:

binfmt_elf_fdpic: fix AUXV size calculation when ELF_HWCAP2 is defined

create_elf_fdpic_tables() does not correctly account the space for the AUX vector when an architecture has ELF_HWCAP2 defined. Prior to the commit 10e29251be0e ("binfmt_elf_fdpic: fix /proc//auxv") it resulted in the last entry of the AUX vector being set to zero, but with that change it results in a kernel BUG.

Fix that by adding one to the number of AUXV entries (nitems) when ELF_HWCAP2 is defined.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46684"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-131"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-13T06:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinfmt_elf_fdpic: fix AUXV size calculation when ELF_HWCAP2 is defined\n\ncreate_elf_fdpic_tables() does not correctly account the space for the\nAUX vector when an architecture has ELF_HWCAP2 defined. Prior to the\ncommit 10e29251be0e (\"binfmt_elf_fdpic: fix /proc/\u003cpid\u003e/auxv\") it\nresulted in the last entry of the AUX vector being set to zero, but with\nthat change it results in a kernel BUG.\n\nFix that by adding one to the number of AUXV entries (nitems) when\nELF_HWCAP2 is defined.",
  "id": "GHSA-p8g8-q26r-2q2r",
  "modified": "2024-09-19T18:30:51Z",
  "published": "2024-09-13T06:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46684"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c507da85e4f80c630deb9e98222ccf4118cbe6f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6a09e342f8e6d3cac7f7c5c14085236aca284b9"
    }
  ],
  "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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