(RHSA-2022:0151) Important: Red Hat Single Sign-On 7.5.1 security update on RHEL 7

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 7.5.1 on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.5.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• Keycloak: Incorrect authorization allows unpriviledged users to create other users (CVE-2021-4133)

• keycloak-server-spi-private: ECP SAML binding bypasses authentication flows (CVE-2021-3827)

• xml-security: XPath Transform abuse allows for information disclosure (CVE-2021-40690)

• resteasy: Error message exposes endpoint class information (CVE-2021-20289)

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