{
  "cveId": "CVE-2023-49100",
  "url": "https://patchblox.com/security/cve/CVE-2023-49100",
  "summary": "CVE-2023-49100 is fixed in arm-trusted-firmware on 1 platform, first by DEBIAN-CVE-2023-49100, released February 21, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "arm-trusted-firmware: Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service",
  "description": "Trusted Firmware-A (TF-A) before 2.10 has a potential read out-of-bounds in the SDEI service. The input parameter passed in register x1 is not validated well enough in the function sdei_interrupt_bind. The parameter is passed to a call to plat_ic_get_interrupt_type. It can be any arbitrary value passing checks in the function plat_ic_is_sgi. A compromised Normal World (Linux kernel) can enable a root-privileged attacker to issue arbitrary SMC calls. Using this primitive, he can control the content of registers x0 through x6, which are used to send parameters to TF-A. Out-of-bounds addresses can be read in the context of TF-A (EL3). Because the read value is never returned to non-secure memory or in registers, no leak is possible. An attacker can still crash TF-A, however.",
  "published": "2024-02-21T16:15:49Z",
  "severity": "medium",
  "cvss": 4.4,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00224,
  "epssPercentile": 0.13143,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "arm-trusted-firmware",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.10.0\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2023-49100",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-49100",
      "released": "2024-02-21T16:15:49Z"
    },
    {
      "platform": "linux",
      "product": "arm-trusted-firmware",
      "release": "Debian 14",
      "fixedVersion": "2.10.0\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2023-49100",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-49100",
      "released": "2024-02-21T16:15:49Z"
    }
  ],
  "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"
  }
}