{
  "cveId": "CVE-2021-47240",
  "url": "https://patchblox.com/security/cve/CVE-2021-47240",
  "summary": "CVE-2021-47240 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47240, released May 21, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  net: qrtr: fix OOB Read in qrtr_endpoint_post  S...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  net: qrtr: fix OOB Read in qrtr_endpoint_post  Syzbot reported slab-out-of-bounds Read in qrtr_endpoint_post. The problem was in wrong _size_ type:  \tif (len != ALIGN(size, 4) \u002B hdrlen) \t\tgoto err;  If size from qrtr_hdr is 4294967293 (0xfffffffd), the result of ALIGN(size, 4) will be 0. In case of len == hdrlen and size == 4294967293 in header this check won\u0027t fail and  \tskb_put_data(skb, data \u002B hdrlen, size);  will read out of bound from data, which is hdrlen allocated block.",
  "published": "2024-05-21T15:15:13Z",
  "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": 0.00241,
  "epssPercentile": 0.15319,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.46-1",
      "fix": "DEBIAN-CVE-2021-47240",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47240",
      "released": "2024-05-21T15:15:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.46-1",
      "fix": "DEBIAN-CVE-2021-47240",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47240",
      "released": "2024-05-21T15:15:13Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.46-1",
      "fix": "DEBIAN-CVE-2021-47240",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47240",
      "released": "2024-05-21T15:15:13Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}