RHSA-2022:6783MediumCVSS 9.8

Red Hat Security Advisory: Red Hat Single Sign-On 7.5.3 security update on RHEL 8

Published
October 4, 2022
Last Modified
August 7, 2026

🔗 CVE IDs covered (8)

CVE-2022-0866 →CVE-2022-2256 →CVE-2022-2668 →CVE-2020-36518 →CVE-2021-42392 →CVE-2021-43797 →CVE-2022-0084 →CVE-2022-0225 →

📋 Description

CVE-2020-36518 — jackson-databind: denial of service via a large depth of nested objects CVE-2021-42392 — h2: Remote Code Execution in Console CVE-2021-43797 — netty: control chars in header names may lead to HTTP request smuggling CVE-2022-0084 — xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr CVE-2022-0225 — keycloak: Stored XSS in groups dropdown CVE-2022-0866 — wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled CVE-2022-2256 — keycloak: improper input validation permits script injection CVE-2022-2668 — keycloak: Uploading of SAML javascript protocol mapper scripts through the admin console

🎯 Affected products4

  • Red Hat Single Sign-On 7.5 for RHEL 8
  • rh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el8sso.noarch as a component of Red Hat Single Sign-On 7.5 for RHEL 8
  • rh-sso7-keycloak-0:15.0.8-1.redhat_00001.1.el8sso.src as a component of Red Hat Single Sign-On 7.5 for RHEL 8
  • rh-sso7-keycloak-server-0:15.0.8-1.redhat_00001.1.el8sso.noarch as a component of Red Hat Single Sign-On 7.5 for RHEL 8

✅ Remediation

Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 Workaround: In order to avoid the possibility of information access, review application source code for '@RunAs' and 'run-as-principal' usage. Also, make sure the application is using or not Elytron Security. It's possible to investigate by checking if the commands from '$JBOSS_HOME/docs/examples/enable-elytron.cli' or similar were executed.

🔗 References (11)