{
  "cveId": "CVE-2021-28211",
  "url": "https://patchblox.com/security/cve/CVE-2021-28211",
  "summary": "CVE-2021-28211 is fixed in 6 products on 1 platform, first by ovmf 0~20191122.bd85bf54-2ubuntu3.2, released March 15, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "edk2-aarch64: EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines",
  "description": "EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. \n\nSecurity Fix(es):\n\n* edk2: possible heap corruption with LzmaUefiDecompressGetInfo (CVE-2021-28211)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2021-03-15T17:00:00Z",
  "severity": "Moderate",
  "cvss": 6.7,
  "epss": 0.00386,
  "epssPercentile": 0.32883,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "edk2-aarch64",
      "release": "RHEL 8",
      "fixedVersion": "0:20200602gitca407c7246bf-4.el8_4.1",
      "fix": "RHSA-2021:2591",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-2591",
      "released": "2021-06-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "edk2-aarch64",
      "release": "ol 8",
      "fixedVersion": "0:20200602gitca407c7246bf-4.el8_4.1",
      "fix": "ELSA-2021-2591",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-2591",
      "released": "2021-06-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "edk2-ovmf",
      "release": "RHEL 8",
      "fixedVersion": "0:20200602gitca407c7246bf-4.el8_4.1",
      "fix": "RHSA-2021:2591",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2021-2591",
      "released": "2021-06-29T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "edk2-ovmf",
      "release": "ol 8",
      "fixedVersion": "0:20200602gitca407c7246bf-4.el8_4.1",
      "fix": "ELSA-2021-2591",
      "url": "https://patchblox.com/security/fix/linux/elsa-2021-2591",
      "released": "2021-06-30T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "fix": "ovmf 0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-ovmf-0-20180205.c0d9813c-2ubuntu0.3-esm2",
      "released": "2022-03-03T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ovmf",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.2",
      "fix": "ovmf 0~20191122.bd85bf54-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-ovmf-0-20191122.bd85bf54-2ubuntu3.2",
      "released": "2021-03-15T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "fix": "qemu-efi 0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-qemu-efi-0-20180205.c0d9813c-2ubuntu0.3-esm2",
      "released": "2022-03-03T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.2",
      "fix": "qemu-efi 0~20191122.bd85bf54-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-0-20191122.bd85bf54-2ubuntu3.2",
      "released": "2021-03-15T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "fix": "qemu-efi-aarch64 0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-qemu-efi-aarch64-0-20180205.c0d9813c-2ubuntu0.3-esm2",
      "released": "2022-03-03T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-aarch64",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.2",
      "fix": "qemu-efi-aarch64 0~20191122.bd85bf54-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-aarch64-0-20191122.bd85bf54-2ubuntu3.2",
      "released": "2021-03-15T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "fix": "qemu-efi-arm 0~20180205.c0d9813c-2ubuntu0.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-qemu-efi-arm-0-20180205.c0d9813c-2ubuntu0.3-esm2",
      "released": "2022-03-03T14:15:00Z"
    },
    {
      "platform": "linux",
      "product": "qemu-efi-arm",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0~20191122.bd85bf54-2ubuntu3.2",
      "fix": "qemu-efi-arm 0~20191122.bd85bf54-2ubuntu3.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-qemu-efi-arm-0-20191122.bd85bf54-2ubuntu3.2",
      "released": "2021-03-15T17:00:00Z"
    }
  ],
  "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"
  }
}