Vulnerability-Lookup

FKIE_CVE-2018-10912

Vulnerability from fkie_nvd - Published: 2018-07-23 22:29 - Updated: 2026-06-17 01:34

Severity

4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Summary

keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement. A Keycloak cluster with multiple nodes could mishandle an expired session replacement and lead to an infinite loop. A malicious authenticated user could use this flaw to achieve Denial of Service on the server.

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2018:2428	Vendor Advisory
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2019:0877	Vendor Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10912	Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2018:2428	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2019:0877	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10912	Issue Tracking, Vendor Advisory

Impacted products

	Vendor	Product	Version
	redhat	keycloak	*
	redhat	single_sign-on	7.2

JSON

To clipboard

{
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      "affectedData": [
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          "product": "keycloak",
          "vendor": "[UNKNOWN]",
          "versions": [
            {
              "status": "affected",
              "version": "Keycloak 4.0.0.Final"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "D641ED2C-0624-4B8E-B902-DA34A9BC3D4C",
              "versionEndExcluding": "4.0.0",
              "vulnerable": true
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          "negate": false,
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              "vulnerable": true
            }
          ],
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          "operator": "OR"
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    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement. A Keycloak cluster with multiple nodes could mishandle an expired session replacement and lead to an infinite loop. A malicious authenticated user could use this flaw to achieve Denial of Service on the server."
    },
    {
      "lang": "es",
      "value": "keycloak en versiones anteriores a la 4.0.0.final es vulnerable a un bucle infinito en el reemplazo de sesiones. Un cl\u00faster de Keycloak con m\u00faltiples nodos podr\u00eda gestionar err\u00f3neamente un reemplazo de sesi\u00f3n err\u00f3neo y conducir a un bucle infinito. Un usuario autenticado malicioso podr\u00eda emplear este error para lograr una denegaci\u00f3n de servicio (DoS) en el servidor."
    }
  ],
  "id": "CVE-2018-10912",
  "lastModified": "2026-06-17T01:34:54.237",
  "metrics": {
    "cvssMetricV2": [
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        "baseSeverity": "MEDIUM",
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          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.0,
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          "integrityImpact": "NONE",
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        "impactScore": 2.9,
        "obtainAllPrivilege": false,
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          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
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    },
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    },
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    },
    {
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        "Issue Tracking",
        "Vendor Advisory"
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    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
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        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2018-10912 (GCVE-0-2018-10912)

Vulnerability from cvelistv5 – Published: 2018-07-23 22:00 – Updated: 2024-08-05 07:54

Summary

Severity

4.4 (Medium)


                        
                          CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-835

Assigner

redhat redhat root

References

3 references

URL	Tags
https://access.redhat.com/errata/RHSA-2018:2428	vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2019:0877	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
[UNKNOWN]	keycloak	Affected: Keycloak 4.0.0.Final

Date Public

2018-07-23 00:00

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.