ghsa-rx63-pxf9-gqg8
Vulnerability from github
Published
2022-05-24 17:16
Modified
2022-05-24 17:16
Details

In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file into shiftfs_real_fdget(), which casts file->private_data, a void that points to a filesystem-dependent type, to a "struct shiftfs_file_info *". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-15792"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-24T00:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() calls fdget(oldfd), then without further checks passes the resulting file* into shiftfs_real_fdget(), which casts file-\u003eprivate_data, a void* that points to a filesystem-dependent type, to a \"struct shiftfs_file_info *\". As the private_data is not required to be a pointer, an attacker can use this to cause a denial of service or possibly execute arbitrary code.",
  "id": "GHSA-rx63-pxf9-gqg8",
  "modified": "2022-05-24T17:16:24Z",
  "published": "2022-05-24T17:16:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-15792"
    },
    {
      "type": "WEB",
      "url": "https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/eoan/commit/?id=5df147c8140efc71ac0879ae3b0057f577226d4c"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/usn/usn-4183-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/usn/usn-4184-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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