Infinite loop in Keycloak - CVE-2017-2646
Published: August 8, 2018
Vulnerability identifier: #VU14268
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-2646
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Keycloak
Affected software:
Keycloak
Keycloak
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability existsdue to improper processing of logout requests that contain an extension element. A remote attacker can send a specially crafted logout request that submits malicious input, make the SAMLSloRequestParser.parse() method end in an infinite loop and cause the service to crash.
How to mitigate CVE-2017-2646
Update to version 2.5.5.