ghsa-54f3-c6hg-865h
Vulnerability from github
Published
2023-12-14 18:30
Modified
2023-12-29 00:14
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
Allocation of Resources Without Limits in Keycloak
Details

An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the "consents" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-model-jpa"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "21.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-6563"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-12-15T23:17:43Z",
    "nvd_published_at": "2023-12-14T18:15:45Z",
    "severity": "HIGH"
  },
  "details": "An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (\u003e 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the \"consents\" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system. ",
  "id": "GHSA-54f3-c6hg-865h",
  "modified": "2023-12-29T00:14:20Z",
  "published": "2023-12-14T18:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6563"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/issues/13340"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/pull/15463"
    },
    {
      "type": "WEB",
      "url": "https://github.com/keycloak/keycloak/commit/556146f961f7c8ddf64de15e2117a58d045f72b5"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:7854"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:7855"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:7856"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:7857"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2023:7858"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2023-6563"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253308"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Allocation of Resources Without Limits in Keycloak"
}


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