{
  "cveId": "CVE-2021-47046",
  "url": "https://patchblox.com/security/cve/CVE-2021-47046",
  "summary": "CVE-2021-47046 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47046, released February 28, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix off by one in hdmi_14_proce...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  drm/amd/display: Fix off by one in hdmi_14_process_transaction()  The hdcp_i2c_offsets[] array did not have an entry for HDCP_MESSAGE_ID_WRITE_CONTENT_STREAM_TYPE so it led to an off by one read overflow.  I added an entry and copied the 0x0 value for the offset from similar code in drivers/gpu/drm/amd/display/modules/hdcp/hdcp_ddc.c.  I also declared several of these arrays as having HDCP_MESSAGE_ID_MAX entries.  This doesn\u0027t change the code, but it\u0027s just a belt and suspenders approach to try future proof the code.",
  "published": "2024-02-28T09:15:40Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00245,
  "epssPercentile": 0.15758,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47046",
      "released": "2024-02-28T09:15:40Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47046",
      "released": "2024-02-28T09:15:40Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.10.38-1",
      "fix": "DEBIAN-CVE-2021-47046",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-47046",
      "released": "2024-02-28T09:15:40Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}