CVE-2023-6563

CVSS 3.1 Score 7.7 of 10 (high)

Details

Published Dec 14, 2023
Updated: Dec 27, 2023
CWE ID 770

Summary

CVE-2023-6563 is an unconstrained memory consumption vulnerability that affects Keycloak. This vulnerability can be triggered in environments with millions of offline tokens and could potentially crash the entire system. The vulnerability occurs when an attacker creates multiple user sessions and opens the "consents" tab of the admin User Interface, causing excessive memory and CPU consumption. The affected products include various versions of Keycloak. To remediate this vulnerability, users are advised to upgrade to the latest version of Keycloak. The potential danger posed by this vulnerability is high, as it can lead to system crashes and disrupt the normal functioning of an organization's operations.

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