SB2018072506 - Denial of service in Red Hat Keycloak
Published: July 25, 2018
Security Bulletin ID
SB2018072506
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Infinite loop (CVE-ID: CVE-2018-10912)
CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
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.
Remediation
Install update from vendor's website.