CVE-2017-2646: High severity red hat keycloak vulnerability
Published Jul 27, 2018
·Updated
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.
Affected Software
1 affected component
redhat Keycloak<2.5.5
Event History
Jul 27, 2018
CVE Published
via MITRE·06:00 PM
Data Sourced
via MITRE·06:00 PM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the severity of CVE-2017-2646?
CVE-2017-2646 is classified as a denial of service vulnerability.
2
How do I fix CVE-2017-2646?
To fix CVE-2017-2646, upgrade Keycloak to version 2.5.5 or later.
3
What happens if CVE-2017-2646 is exploited?
If exploited, CVE-2017-2646 can lead to an infinite loop during logout requests, resulting in service unavailability.
4
Which versions of Keycloak are affected by CVE-2017-2646?
Keycloak versions prior to 2.5.5 are affected by CVE-2017-2646.
5
Can CVE-2017-2646 be used for denial of service attacks?
Yes, an attacker could leverage CVE-2017-2646 to perform denial of service attacks on vulnerable installations.