Vulnerability identifier: #VU13997

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10912

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Keycloak
Server applications / Directory software, identity management

Vendor: Keycloak

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The vulnerability exists due to mishandling of expired session replacement. A remote attacker who has access to a Keycloak cluster with multiple nodes can trigger an infinite loop and cause the service to crash.

Mitigation
Update to version 4.0.0.

Vulnerable software versions

Keycloak: 3.2.1 - 3.4.2, 2.0.0 - 2.5.1, 1.8.0 - 1.9.8, 0.6.0

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External links
http://access.redhat.com/security/cve/cve-2018-10912

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.