USN-7926-1 (UBUNTU-CVE-2021-3563)

Vulnerability from osv_ubuntu – Published: 2025-12-11 14:24 – Updated: 2026-04-27 14:11 – Source website
VLAI
Summary
keystone vulnerabilities
Details

Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens and s3tokens APIs. A remote attacker could possibly use this issue to obtain unauthorized access and escalate privileges. (CVE-2025-65073)

It was discovered that OpenStack Keystone only validated the first 72 bytes of an application secret. An attacker could possibly use this issue to bypass password complexity. (CVE-2021-3563)

It was discovered that OpenStack Keystone had a time lag before a token should be revoked by the security policy. A remote administrator could use this issue to maintain access for longer than expected. (CVE-2022-2447)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-3563",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-2447",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65073",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "keystone",
            "binary_version": "2:21.0.1-0ubuntu2.1"
          },
          {
            "binary_name": "keystone-common",
            "binary_version": "2:21.0.1-0ubuntu2.1"
          },
          {
            "binary_name": "python3-keystone",
            "binary_version": "2:21.0.1-0ubuntu2.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "keystone",
        "purl": "pkg:deb/ubuntu/keystone@2:21.0.1-0ubuntu2.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2:21.0.1-0ubuntu2.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:20.0.0-0ubuntu1",
        "2:20.0.0+git2021120815.2ddf8f321-0ubuntu1",
        "2:20.0.0+git2022011217.771c943ad-0ubuntu1",
        "2:20.0.0+git2022030313.a3fc9e7c3-0ubuntu1",
        "2:21.0.0-0ubuntu1",
        "2:21.0.1-0ubuntu1",
        "2:21.0.1-0ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Kay discovered that OpenStack Keystone incorrectly handled the ec2tokens\nand s3tokens APIs. A remote attacker could possibly use this issue to\nobtain unauthorized access and escalate privileges. (CVE-2025-65073)\n\nIt was discovered that OpenStack Keystone only validated the first 72\nbytes of an application secret. An attacker could possibly use this issue\nto bypass password complexity. (CVE-2021-3563)\n\nIt was discovered that OpenStack Keystone had a time lag before a token\nshould be revoked by the security policy. A remote administrator could use\nthis issue to maintain access for longer than expected. (CVE-2022-2447)",
  "id": "USN-7926-1",
  "modified": "2026-04-27T14:11:47Z",
  "published": "2025-12-11T14:24:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7926-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-3563"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-2447"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-65073"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "keystone vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-3563",
    "UBUNTU-CVE-2022-2447",
    "UBUNTU-CVE-2025-65073"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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

Author Source Type Date Other

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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.