GHSA-54f3-c6hg-865h
Allocation of Resources Without Limits in Keycloak
At a glance
- Published
- Updated
- CVE
- CVE-2023-6563
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.keycloak:keycloak-model-jpa | introduced 0, fixed 21.0.0 |
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
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |