(RHSA-2023:4919) Important: Red Hat Single Sign-On 7.6.5 security update on RHEL 8

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 7.6.5 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.6.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• undertow: OutOfMemoryError due to @MultipartConfig handling (CVE-2023-3223)

• jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode (CVE-2021-46877)

• jettison: Uncontrolled Recursion in JSONArray (CVE-2023-1436)

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.