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Red Hat 8 RHSA-2021-2065: Enhancements in Keycloak Session Termination

red hat
Calendar Grey May 20, 2021
Dist Redhat Esm H88
The Red Hat Single Sign-On 7.4.7 release addresses key security issues, enhancing authentication and access control for safeguarding sensitive data and improving user experience
New Red Hat Single Sign-On 7.4.7 packages are now available for Red Hat Enterprise Linux 8

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

Summary

Red Hat Single Sign-On 7.4 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 7.4.7 serves as a replacement for Red Hat Single Sign-On 7.4.6, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP (CVE-2021-3461)
* keycloak: Internationalized domain name (IDN) homograph attack to impersonate users (CVE-2021-3424)
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.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Red Hat Enterprise Linux moderate severity authentication issue authentication Keycloak Keycloak fix backchannel logout

References

https://access.redhat.com/security/cve/CVE-2021-3424 https://access.redhat.com/security/cve/CVE-2021-3461 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_single_sign-on/7.4/html/release_notes/index

Package List

Red Hat Single Sign-On 7.4 for RHEL 8:
Source: rh-sso7-keycloak-9.0.13-1.redhat_00006.1.el8sso.src.rpm
noarch: rh-sso7-keycloak-9.0.13-1.redhat_00006.1.el8sso.noarch.rpm rh-sso7-keycloak-server-9.0.13-1.redhat_00006.1.el8sso.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Advisory ID: RHSA-2021:2065-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2065
Issue date: 2021-05-20

Topic

New Red Hat Single Sign-On 7.4.7 packages are now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Red Hat Enterprise Linux moderate severity authentication issue authentication Keycloak Keycloak fix backchannel logout

Relevant Releases Architectures

Red Hat Single Sign-On 7.4 for RHEL 8 - noarch

Bugs Fixed

1933320 - CVE-2021-3424 keycloak: Internationalized domain name (IDN) homograph attack to impersonate users1941565 - CVE-2021-3461 keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP

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