Headline
RHSA-2023:4919: Red Hat Security Advisory: Red Hat Single Sign-On 7.6.5 security update on RHEL 8
New Red Hat Single Sign-On 7.6.5 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
Related CVEs:
- CVE-2021-46877: A flaw was found in Jackson Databind. This issue may allow a malicious user to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.
- CVE-2023-1436: A flaw was found in Jettison. Infinite recursion is triggered in Jettison when constructing a JSONArray from a Collection that contains a self-reference in one of its elements. This issue leads to a StackOverflowError exception being thrown.
- CVE-2023-3223: A flaw was found in undertow. Servlets annotated with @MultipartConfig may cause an OutOfMemoryError due to large multipart content. This may allow unauthorized users to cause remote Denial of Service (DoS) attack. If the server uses fileSizeThreshold to limit the file size, it’s possible to bypass the limit by setting the file name in the request to null.
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Issued:
2023-08-31
Updated:
2023-08-31
RHSA-2023:4919 - Security Advisory
- Overview
- Updated Packages
Synopsis
Important: Red Hat Single Sign-On 7.6.5 security update on RHEL 8
Type/Severity
Security Advisory: Important
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
View affected systems
Topic
New Red Hat Single Sign-On 7.6.5 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 7.6 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 8 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.
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 7.6 for RHEL 8 x86_64
Fixes
- BZ - 2182788 - CVE-2023-1436 jettison: Uncontrolled Recursion in JSONArray
- BZ - 2185707 - CVE-2021-46877 jackson-databind: Possible DoS if using JDK serialization to serialize JsonNode
- BZ - 2209689 - CVE-2023-3223 undertow: OutOfMemoryError due to @MultipartConfig handling
Red Hat Single Sign-On 7.6 for RHEL 8
SRPM
rh-sso7-keycloak-18.0.9-1.redhat_00001.1.el8sso.src.rpm
SHA-256: ce42255dec08e0a925142b7ffb3f0ccc6f2bf5f0d56b1214b34cd245f9d204d0
x86_64
rh-sso7-keycloak-18.0.9-1.redhat_00001.1.el8sso.noarch.rpm
SHA-256: bf5e50e2d54fb20058d5d68d6616e3852a95cb40de40708685f227cda8407ba3
rh-sso7-keycloak-server-18.0.9-1.redhat_00001.1.el8sso.noarch.rpm
SHA-256: b994ef7813d74d61c83e111ab8a0e110755eac692f6258efbd3676020badc03d
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
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An infinite recursion is triggered in Jettison when constructing a JSONArray from a Collection that contains a self-reference in one of its elements. This leads to a StackOverflowError exception being thrown.
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jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.
jackson-databind 2.10.x through 2.12.x before 2.12.6 and 2.13.x before 2.13.1 allows attackers to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization.