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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-6563 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2023:7854 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7854 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7855 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7855 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7856 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7856 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7857 Exploit 
https://access.redhat.com/errata/RHSA-2023:7857 Exploit 
https://access.redhat.com/errata/RHSA-2023:7858 Vendor Advisory 
https://access.redhat.com/errata/RHSA-2023:7858 Vendor Advisory 
https://access.redhat.com/security/cve/CVE-2023-6563 Vendor Advisory 
https://access.redhat.com/security/cve/CVE-2023-6563 Vendor Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2253308 Issue Tracking 
https://bugzilla.redhat.com/show_bug.cgi?id=2253308 Issue Tracking 
https://github.com/keycloak/keycloak/issues/13340 Issue Tracking 
https://github.com/keycloak/keycloak/issues/13340 Issue Tracking 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-6563
NVD Published Date:
12/14/2023
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.