{
  "cveId": "CVE-2021-47604",
  "url": "https://patchblox.com/security/cve/CVE-2021-47604",
  "summary": "CVE-2021-47604 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47604, released June 19, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  vduse: check that offset is within bounds in get...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  vduse: check that offset is within bounds in get_config()  This condition checks \u0022len\u0022 but it does not check \u0022offset\u0022 and that could result in an out of bounds read if \u0022offset \u003E dev-\u003Econfig_size\u0022. The problem is that since both variables are unsigned the \u0022dev-\u003Econfig_size - offset\u0022 subtraction would result in a very high unsigned value.  I think these checks might not be necessary because \u0022len\u0022 and \u0022offset\u0022 are supposed to already have been validated using the vhost_vdpa_config_validate() function.  But I do not know the code perfectly, and I like to be safe.",
  "published": "2024-06-19T15:15:54Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
  "epss": 0.00211,
  "epssPercentile": 0.11391,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47604",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47604",
      "released": "2024-06-19T15:15:54Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47604",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47604",
      "released": "2024-06-19T15:15:54Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.15.15-1",
      "fix": "DEBIAN-CVE-2021-47604",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47604",
      "released": "2024-06-19T15:15:54Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}