Описание
A denial of service vulnerability was found in Keycloak that could allow an administrative user with the right to change realm settings to disrupt the service. This action is done by modifying any of the security headers and inserting newlines, which causes the Keycloak server to write to a request that has already been terminated, leading to the failure of said request.
Отчет
Red Hat has evaluated this vulnerability and its impact is restricted to Keycloak. No Keycloak connectors/adapters are affected.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat JBoss Enterprise Application Platform 8 | org.keycloak/keycloak-quarkus-server | Not affected | ||
| Red Hat JBoss Enterprise Application Platform Expansion Pack | org.keycloak/keycloak-quarkus-server | Not affected | ||
| Red Hat build of Keycloak 26.0 | rhbk/keycloak-operator-bundle | Fixed | RHSA-2025:0299 | 13.01.2025 |
| Red Hat build of Keycloak 26.0 | rhbk/keycloak-rhel9 | Fixed | RHSA-2025:0299 | 13.01.2025 |
| Red Hat build of Keycloak 26.0 | rhbk/keycloak-rhel9-operator | Fixed | RHSA-2025:0299 | 13.01.2025 |
| RHBK 26.0.8 | org.keycloak/keycloak-quarkus-server | Fixed | RHSA-2025:0300 | 13.01.2025 |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
A denial of service vulnerability was found in Keycloak that could allow an administrative user with the right to change realm settings to disrupt the service. This action is done by modifying any of the security headers and inserting newlines, which causes the Keycloak server to write to a request that has already been terminated, leading to the failure of said request.
A denial of service vulnerability was found in Keycloak that could all ...
Denial of Service in Keycloak Server via Security Headers
EPSS
6.5 Medium
CVSS3