{
  "cveId": "CVE-2023-48733",
  "url": "https://patchblox.com/security/cve/CVE-2023-48733",
  "summary": "CVE-2023-48733 is fixed in 12 products on 1 platform, first by ovmf 0~20191122.bd85bf54-2ubuntu3.5, released February 13, 2024. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "edk2: An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu\u0027s EDK2",
  "description": "An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu\u0027s EDK2. This allows an OS-resident attacker to bypass Secure Boot.",
  "published": "2024-02-13T16:00:00Z",
  "severity": "medium",
  "cvss": 6.7,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00256,
  "epssPercentile": 0.1736,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "edk2",
      "release": "Debian 11.6 (bullseye)",
      "fixedVersion": "2020.11-2\u002Bdeb11u2",
      "fix": "DSA-5624-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5624-1",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "edk2",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2022.11-6\u002Bdeb12u1",
      "fix": "DSA-5624-1",
      "url": "https://patchblox.com/security/fix/linux/dsa-5624-1",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "edk2",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2023.11-7",
      "fix": "DEBIAN-CVE-2023-48733",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-48733",
      "released": "2024-02-14T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "edk2",
      "release": "Debian 14",
      "fixedVersion": "2023.11-7",
      "fix": "DEBIAN-CVE-2023-48733",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-48733",
      "released": "2024-02-14T22:15:47Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-aa64",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-aa64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-efi-shell-aa64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-aa64",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-aa64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-efi-shell-aa64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-arm",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-arm 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-efi-shell-arm-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-arm",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-arm 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-efi-shell-arm-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-ia32",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-ia32 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-efi-shell-ia32-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-ia32",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-ia32 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-efi-shell-ia32-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-riscv64",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-riscv64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-efi-shell-riscv64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-riscv64",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-riscv64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-efi-shell-riscv64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-x64",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-x64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-efi-shell-x64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "efi-shell-x64",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "efi-shell-x64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-efi-shell-x64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.5",
      "fix": "ovmf 0~20191122.bd85bf54-2ubuntu3.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-ovmf-0-20191122.bd85bf54-2ubuntu3.5",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2022.02-3ubuntu0.22.04.2",
      "fix": "ovmf 2022.02-3ubuntu0.22.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-ovmf-2022.02-3ubuntu0.22.04.2",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "ovmf 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-ovmf-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "ovmf 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-ovmf-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf-ia32",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2022.02-3ubuntu0.22.04.2",
      "fix": "ovmf-ia32 2022.02-3ubuntu0.22.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-ovmf-ia32-2022.02-3ubuntu0.22.04.2",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf-ia32",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "ovmf-ia32 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-ovmf-ia32-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf-ia32",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "ovmf-ia32 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-ovmf-ia32-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.5",
      "fix": "qemu-efi 0~20191122.bd85bf54-2ubuntu3.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-0-20191122.bd85bf54-2ubuntu3.5",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2022.02-3ubuntu0.22.04.2",
      "fix": "qemu-efi 2022.02-3ubuntu0.22.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-qemu-efi-2022.02-3ubuntu0.22.04.2",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.5",
      "fix": "qemu-efi-aarch64 0~20191122.bd85bf54-2ubuntu3.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-aarch64-0-20191122.bd85bf54-2ubuntu3.5",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2022.02-3ubuntu0.22.04.2",
      "fix": "qemu-efi-aarch64 2022.02-3ubuntu0.22.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-qemu-efi-aarch64-2022.02-3ubuntu0.22.04.2",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-aarch64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-qemu-efi-aarch64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-aarch64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-qemu-efi-aarch64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.5",
      "fix": "qemu-efi-arm 0~20191122.bd85bf54-2ubuntu3.5",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-arm-0-20191122.bd85bf54-2ubuntu3.5",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "2022.02-3ubuntu0.22.04.2",
      "fix": "qemu-efi-arm 2022.02-3ubuntu0.22.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-qemu-efi-arm-2022.02-3ubuntu0.22.04.2",
      "released": "2024-02-13T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-arm 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-qemu-efi-arm-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-arm 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-qemu-efi-arm-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-riscv64",
      "release": "Ubuntu 24.10 (oracular)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-riscv64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-oracular-qemu-efi-riscv64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-riscv64",
      "release": "Ubuntu 25.04 (plucky)",
      "fixedVersion": "2023.11-7",
      "fix": "qemu-efi-riscv64 2023.11-7",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-plucky-qemu-efi-riscv64-2023.11-7",
      "released": "2024-02-14T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}