RHSA-2020:2108 - Security Advisory

Topic

New Red Hat Single Sign-On 7.3.8 packages are now available for Red Hat
Enterprise Linux 8.

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.

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 7.3.8 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.3.7, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• keycloak: security issue on reset credential flow (CVE-2020-1718)
• keycloak: improper verification of certificate with host mismatch could result in information disclosure (CVE-2020-1758)
• keycloak: problem with privacy after user logout (CVE-2020-1724)

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.

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

Affected Products

• Red Hat Single Sign-On 7.3 for RHEL 8 x86_64

Fixes

• BZ - 1796756 - CVE-2020-1718 keycloak: security issue on reset credential flow
• BZ - 1800527 - CVE-2020-1724 keycloak: problem with privacy after user logout
• BZ - 1812514 - CVE-2020-1758 keycloak: improper verification of certificate with host mismatch could result in information disclosure

CVEs

• CVE-2020-1718
• CVE-2020-1724
• CVE-2020-1758

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.3/