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Red Hat Enterprise Linux 8 RHSA-2023-3884-01 Important: SSO Update

red hat
Calendar Grey June 27, 2023
Dist Redhat Esm H88
Key announcement regarding Red Hat Single Sign-On version 7.6.4 emphasizes urgent security vulnerabilities, remedies, and improvements now accessible.
New Red Hat Single Sign-On 7.6.4 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 7.6 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 7.6.4 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.6.3, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* keycloak: Cross-site scripting when validating URI-schemes on SAML and OIDC (CVE-2022-4361)
* undertow: Infinite loop in SslConduit during close (CVE-2023-1108)
* keycloak: oauth client impersonation (CVE-2023-2422)
* keycloak: Untrusted Certificate Validation (CVE-2023-1664)
* keycloak: client access via device auth request spoof (CVE-2023-2585)
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 critical issue Red Hat authentication important update Single Sign-On RHEL 8

References

https://access.redhat.com/security/cve/CVE-2022-4361 https://access.redhat.com/security/cve/CVE-2023-1108 https://access.redhat.com/security/cve/CVE-2023-1664 https://access.redhat.com/security/cve/CVE-2023-2422 https://access.redhat.com/security/cve/CVE-2023-2585 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/articles/11258

Package List

Red Hat Single Sign-On 7.6 for RHEL 8:
Source: rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el8sso.src.rpm
noarch: rh-sso7-keycloak-18.0.8-1.redhat_00001.1.el8sso.noarch.rpm rh-sso7-keycloak-server-18.0.8-1.redhat_00001.1.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:3884-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2023:3884
Issue date: 2023-06-27

Topic

New Red Hat Single Sign-On 7.6.4 packages are now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory critical issue Red Hat authentication important update Single Sign-On RHEL 8

Relevant Releases Architectures

Red Hat Single Sign-On 7.6 for RHEL 8 - noarch

Bugs Fixed

2151618 - CVE-2022-4361 Keycloak | RHSSO: XSS due to lax URI scheme validation

2174246 - CVE-2023-1108 Undertow: Infinite loop in SslConduit during close

2182196 - CVE-2023-1664 keycloak: Untrusted Certificate Validation

2191668 - CVE-2023-2422 keycloak: oauth client impersonation

2196335 - CVE-2023-2585 keycloak: client access via device auth request spoof

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