{
  "cveId": "CVE-2023-52454",
  "url": "https://patchblox.com/security/cve/CVE-2023-52454",
  "summary": "CVE-2023-52454 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-52454, released February 23, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  nvmet-tcp: Fix a kernel panic when host sends an...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length  If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec().  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work\u002B0x6ac/0x718 [nvmet_tcp] Call trace:   process_one_work\u002B0x174/0x3c8   worker_thread\u002B0x2d0/0x3e8   kthread\u002B0x104/0x110  Fix the bug by raising a fatal error if DATAL isn\u0027t coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().",
  "published": "2024-02-23T15:15:08Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00676,
  "epssPercentile": 0.52485,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.76-1",
      "fix": "DEBIAN-CVE-2023-52454",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52454",
      "released": "2024-02-23T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.6.15-1",
      "fix": "DEBIAN-CVE-2023-52454",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52454",
      "released": "2024-02-23T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.6.15-1",
      "fix": "DEBIAN-CVE-2023-52454",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-52454",
      "released": "2024-02-23T15:15:08Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}