(RHSA-2020:0445) Important: Red Hat Single Sign-On 7.3.6 security update

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Red Hat Single Sign-On 7.3 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 7.3.6 serves as a replacement for Red Hat Single Sign-On 7.3.5, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• jackson-databind: enabling default typing leads to code execution (CVE-2019-17531)
• netty: HTTP request smuggling by mishandled whitespace before the colon in HTTP headers (CVE-2019-16869)
• jackson-databind: Serialization gadgets in classes of the p6spy package (CVE-2019-16943)
• jackson-databind: Serialization gadgets in classes of the commons-dbcp package (CVE-2019-16942)
• jackson-databind: Serialization gadgets in classes of the xalan package (CVE-2019-14893)
• jackson-databind: Serialization gadgets in classes of the commons-configuration package (CVE-2019-14892)
• jackson-databind: Serialization gadgets in classes of the ehcache package (CVE-2019-17267)
• jackson-databind: polymorphic typing issue related to com.zaxxer.hikari.HikariConfig (CVE-2019-14540)
• jackson-databind: polymorphic typing issue related to com.zaxxer.hikari.HikariDataSource (CVE-2019-16335)
• hibernate-validator: safeHTML validator allows XSS (CVE-2019-10219)
• xstream: remote code execution due to insecure XML deserialization regression (CVE-2019-10173)

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.