Medium severity · published Jul 23, 2018
CVE-2018-10912
keycloak before version 4.0.0.final is vulnerable to a infinite loop in session replacement
4.9
CVSS
1.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Redhat
before 4.0.0 · source: NVD
SS
Single Sign-on · Redhat
7.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-10912
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-10912
Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:2428
Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0877
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10912
More from Keycloak
9.8
CVE-2022-1245
A privilege escalation flaw was found in the token exchange feature of keycloak
9.8
CVE-2019-14910
A vulnerability was found in keycloak 7.x, when keycloak is configured with LDAP user federation and StartTLS is used instead of SSL/TLS from the LDAP server (ldaps), in this case…
9.6
CVE-2021-20195
A flaw was found in keycloak in versions before 13.0.0
9.1
CVE-2022-3782
keycloak: path traversal via double URL encoding
9.1
CVE-2019-14837
A flaw was found in keycloack before version 8.0.0