(RHSA-2023:2707) Moderate: Red Hat Single Sign-On 7.6.3 security update on RHEL 9

Red Hat Single Sign-On 7.6 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 7.6.3 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.2, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• okhttp: information disclosure via improperly used cryptographic function (CVE-2021-0341)

• undertow: Server identity in https connection is not checked by the undertow client (CVE-2022-4492)

• snakeyaml: Uncaught exception in java.base/java.util.ArrayList.hashCode (CVE-2022-38752)

• dev-java/snakeyaml: DoS via stack overflow (CVE-2022-41854)

• codec-haproxy: HAProxyMessageDecoder Stack Exhaustion DoS (CVE-2022-41881)

• apache-james-mime4j: Temporary File Information Disclosure in MIME4J TempFileStorageProvider (CVE-2022-45787)

• RESTEasy: creation of insecure temp files (CVE-2023-0482)

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.