GHSA-JC6Q-27MW-P55W

Vulnerability from github – Published: 2018-10-18 16:49 – Updated: 2022-09-13 23:31
VLAI?
Summary
Keycloak vulnerable to infinite loop based Denial of Service
Details

When Keycloak versions prior to 2.5.5 receive a Logout request with an Extensions in the middle of the request, the SAMLSloRequestParser.parse() method ends in an infinite loop. An attacker could use this flaw to conduct denial of service attacks.

Severity ?
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.keycloak:keycloak-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.5.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-2646"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:42:58Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "When Keycloak versions prior to 2.5.5 receive a Logout request with an Extensions in the middle of the request, the SAMLSloRequestParser.parse() method ends in an infinite loop. An attacker could use this flaw to conduct denial of service attacks.",
  "id": "GHSA-jc6q-27mw-p55w",
  "modified": "2022-09-13T23:31:40Z",
  "published": "2018-10-18T16:49:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-2646"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-jc6q-27mw-p55w"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/keycloak/keycloak"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Keycloak vulnerable to infinite loop based Denial of Service"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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