usn-4923-1
Vulnerability from osv_ubuntu
Published
2021-04-20 17:08
Modified
2026-02-10 04:42
Summary
edk2 vulnerabilities
Details

Laszlo Ersek discovered that EDK II incorrectly handled recursion. A remote attacker could possibly use this issue to cause EDK II to consume resources, leading to a denial of service. (CVE-2021-28210)

Satoshi Tanda discovered that EDK II incorrectly handled decompressing certain images. A remote attacker could use this issue to cause EDK II to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-28211)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-28210",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-28211",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ovmf",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.2"
          },
          {
            "binary_name": "qemu-efi",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.2"
          },
          {
            "binary_name": "qemu-efi-aarch64",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.2"
          },
          {
            "binary_name": "qemu-efi-arm",
            "binary_version": "0~20191122.bd85bf54-2ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "edk2",
        "purl": "pkg:deb/ubuntu/edk2@0~20191122.bd85bf54-2ubuntu3.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0~20191122.bd85bf54-2ubuntu3.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0~20190606.20d2e5a1-2ubuntu1",
        "0~20190828.37eef910-3",
        "0~20190828.37eef910-4",
        "0~20191122.bd85bf54-1",
        "0~20191122.bd85bf54-1ubuntu1",
        "0~20191122.bd85bf54-2",
        "0~20191122.bd85bf54-2ubuntu1",
        "0~20191122.bd85bf54-2ubuntu2",
        "0~20191122.bd85bf54-2ubuntu3",
        "0~20191122.bd85bf54-2ubuntu3.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Laszlo Ersek discovered that EDK II incorrectly handled recursion. A\nremote attacker could possibly use this issue to cause EDK II to consume\nresources, leading to a denial of service. (CVE-2021-28210)\n\nSatoshi Tanda discovered that EDK II incorrectly handled decompressing\ncertain images. A remote attacker could use this issue to cause EDK II to\ncrash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2021-28211)\n",
  "id": "USN-4923-1",
  "modified": "2026-02-10T04:42:09Z",
  "published": "2021-04-20T17:08:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4923-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-28210"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-28211"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "edk2 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-28210",
    "UBUNTU-CVE-2021-28211"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.