High severity · published Jul 9, 2021
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…
7.5
CVSS
1.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Redhat
before 14.0.0 · source: NVD
SS
Single Sign-on · Redhat
7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3637
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3637
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1979638
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