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HIGH · 7.5

CVE-2021-3637

A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.

Vulnerability Description

A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
RedhatKeycloak< 14.0.0
RedhatSingle Sign-On7.0

Related Weaknesses (CWE)

CWE-770

References

FAQ

What is CVE-2021-3637?

CVE-2021-3637 is a vulnerability with a CVSS score of 7.5 (HIGH). A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.

How severe is CVE-2021-3637?

CVE-2021-3637 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3637?

Check the references section above for vendor advisories and patch information. Affected products include: Redhat Keycloak, Redhat Single Sign-On.