Description
It was found that when Keycloak before 2.5.5 receives a Logout request with a Extensions in the middle of the request, the SAMLSloRequestParser.parse() method ends in a infinite loop. An attacker could use this flaw to conduct denial of service attacks.
References (2)
Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2646
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/96882
Scores
CVSS v3
7.5
EPSS
0.0050
EPSS Percentile
66.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (2)
org.keycloak/keycloak-core
0 - 2.5.5Maven
redhat/keycloak
< 2.5.5
Published
Jul 27, 2018
Tracked Since
Feb 18, 2026