(RHSA-2022:6787) Moderate: Red Hat Single Sign-On 7.5.3 security update

Red Hat Single Sign-On 7.5 is a standalone server, based on the Keycloak project, that provides authentication and standards-based single sign-on capabilities for web and mobile applications.

This release of Red Hat Single Sign-On 7.5.3 serves as a replacement for Red Hat Single Sign-On 7.5.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)

• h2: Remote Code Execution in Console (CVE-2021-42392)

• netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)

• xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)

• keycloak: Stored XSS in groups dropdown (CVE-2022-0225)

• wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled (CVE-2022-0866)

• keycloak-saml-core: keycloak: Uploading of SAML javascript protocol mapper scripts through the admin (CVE-2022-2668)

• keycloak-core: keycloak: improper input validation permits script injection (CVE-2022-2256)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.