GitHub Advisoryadvisory · Maven
GHSA-54f3-c6hg-865h Allocation of Resources Without Limits in Keycloak
HIGH
Official page ↗
- Aliases
- CVE-2023-6563
- Ecosystem
- Maven
- Packages
- org.keycloak:keycloak-model-jpa
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-770
- Reviewed
- 2023-12-15
Affected packages
• Maven org.keycloak:keycloak-model-jpa: < 21.0.0 → fixed in 21.0.0
Description
An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the "consents" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system.
Related
Alias · CVE (1)
- CVE-2023-6563 An unconstrained memory consumption vulnerability was discovered in Keycloak. vulnerability
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-6563 advisory
- https://github.com/keycloak/keycloak/issues/13340 web
- https://github.com/keycloak/keycloak/pull/15463 web
- https://github.com/keycloak/keycloak/commit/556146f961f7c8ddf64de15e2117a58d045f72b5 web
- https://access.redhat.com/errata/RHSA-2023:7854 web
- https://access.redhat.com/errata/RHSA-2023:7855 web
- https://access.redhat.com/errata/RHSA-2023:7856 web
- https://access.redhat.com/errata/RHSA-2023:7857 web
- https://access.redhat.com/errata/RHSA-2023:7858 web
- https://access.redhat.com/security/cve/CVE-2023-6563 web
- https://bugzilla.redhat.com/show_bug.cgi?id=2253308 web
- https://github.com/keycloak/keycloak package