7.5 - RHSA-2019:3045

Problem Description:

New Red Hat Single Sign-On 7.3.4 packages are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Single Sign-On 7.3 for RHEL 7 Server - noarch, x86_64

3. Description:

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 7.3.4 on RHEL 7 serves as a replacement for Red Hat Single Sign-On 7.3.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

* keycloak: cross-realm user access auth bypass (CVE-2019-14832)

* keycloak: adapter endpoints are exposed via arbitrary URLs (CVE-2019-14820)

* jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server via crafted JSON message (CVE-2019-12814)

* jackson-databind: default typing mishandling leading to remote code execution (CVE-2019-14379)

* jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server (CVE-2019-12086)

* undertow: Information leak in requests for directories without trailing slashes (CVE-2019-10184)

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.

4. Solution:

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1649870 - CVE-2019-14820 keycloak: adapter endpoints are exposed via arbitrary URLs 1713068 - CVE-2019-10184 undertow: Information leak in requests for directories without trailing slashes 1713468 - CVE-2019-12086 jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server. 1725795 - CVE-2019-12814 jackson-databind: polymorphic typing issue allows attacker to read arbitrary local files on the server via crafted JSON message. 1737517 - CVE-2019-14379 jackson-databind: default typing mishandling leading to remote code execution 1749487 - CVE-2019-14832 keycloak: cross-realm user access auth bypass