FKIE_CVE-2023-6563

Vulnerability from fkie_nvd - Published: 2023-12-14 18:15 - Updated: 2024-11-21 08:44
Severity ?
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7854Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7855Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7856Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7857Exploit
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2023:7858Vendor Advisory
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2023-6563Vendor Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2253308Issue Tracking
secalert@redhat.comhttps://github.com/keycloak/keycloak/issues/13340Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7854Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7855Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7856Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7857Exploit
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:7858Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-6563Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2253308Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://github.com/keycloak/keycloak/issues/13340Issue Tracking
Impacted products
Vendor Product Version
redhat keycloak *
redhat single_sign-on 7.6
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
redhat single_sign-on -
redhat openshift_container_platform 4.11
redhat openshift_container_platform 4.12
redhat enterprise_linux 8.0
redhat openshift_container_platform_for_power 4.9
redhat openshift_container_platform_for_power 4.10
redhat enterprise_linux 8.0
redhat openshift_container_platform_for_ibm_linuxone 4.9
redhat openshift_container_platform_for_ibm_linuxone 4.10
redhat enterprise_linux 8.0
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.