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Red Hat RHEL 9 RHSA-2023-4920-01 Critical: Single Sign-On Update Details

red hat
Calendar Grey August 31, 2023
Dist Redhat Esm H88
Crucial Red Hat Single Sign-On 7.6.5 security patch for RHEL 9 revealed, encompassing comprehensive insights on associated vulnerabilities and remedial measures.
New Red Hat Single Sign-On 7.6.5 packages are now available for Red Hat Enterprise Linux 9

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 7.6.5 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.4, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
* undertow: OutOfMemoryError due to @MultipartConfig handling (CVE-2023-3223)
* jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode (CVE-2021-46877)
* jettison: Uncontrolled Recursion in JSONArray (CVE-2023-1436)
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 red hat security fix important RHEL single sign-on doS issue

References

https://access.redhat.com/security/cve/CVE-2021-46877 https://access.redhat.com/security/cve/CVE-2023-1436 https://access.redhat.com/security/cve/CVE-2023-3223 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Single Sign-On 7.6 for RHEL 9:
Source: rh-sso7-keycloak-18.0.9-1.redhat_00001.1.el9sso.src.rpm
noarch: rh-sso7-keycloak-18.0.9-1.redhat_00001.1.el9sso.noarch.rpm rh-sso7-keycloak-server-18.0.9-1.redhat_00001.1.el9sso.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-2023:4920-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4920
Issue date: 2023-08-31

Topic

New Red Hat Single Sign-On 7.6.5 packages are now available for Red HatEnterprise Linux 9.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 red hat security fix important RHEL single sign-on doS issue

Relevant Releases Architectures

Red Hat Single Sign-On 7.6 for RHEL 9 - noarch

Bugs Fixed

2182788 - CVE-2023-1436 jettison: Uncontrolled Recursion in JSONArray

2185707 - CVE-2021-46877 jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode

2209689 - CVE-2023-3223 undertow: OutOfMemoryError due to @MultipartConfig handling

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