Synopsis
Important: Red Hat Single Sign-On 7.4.2 security update
Type/Severity
Security Advisory: Important
Topic
A security update is now available for Red Hat Single Sign-On 7.4 from the Customer Portal.
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 7.4 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 7.4.2 serves as a replacement for Red Hat Single Sign-On 7.4.1, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.
Security Fix(es):
- EAP: field-name is not parsed in accordance to RFC7230 (CVE-2020-1710)
- jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution (CVE-2020-10672)
- jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution (CVE-2020-10673)
- wildfly: unsafe deserialization in Wildfly Enterprise Java Beans (CVE-2020-10740)
- keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body (CVE-2020-10758)
- Wildfly: Improper authorization issue in WildFlySecurityManager when using alternative protection domain (CVE-2020-1748)
- dom4j: XML External Entity vulnerability in default SAX parser (CVE-2020-10683)
- Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests (CVE-2020-10687)
- hibernate-validator: Improper input validation in the interpolation of constraint error messages (CVE-2020-10693)
- wildfly-elytron: session fixation when using FORM authentication (CVE-2020-10714)
- wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API (CVE-2020-10718)
- wildfly: EJB SessionOpenInvocations may not be removed properly after a response is received causing Denial of Service (CVE-2020-14307)
- netty: compression/decompression codecs don't enforce limits on buffer allocation sizes (CVE-2020-11612)
- keycloak: security headers missing on REST endpoints (CVE-2020-1728)
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 the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.
The References section of this erratum contains a download link (you must log in to download the update).
Affected Products
-
Red Hat Single Sign-On Text-Only Advisories x86_64
Fixes
- BZ - 1694235 - CVE-2020-10683 dom4j: XML External Entity vulnerability in default SAX parser
- BZ - 1785049 - CVE-2020-10687 Undertow: Incomplete fix for CVE-2017-2666 due to permitting invalid characters in HTTP requests
- BZ - 1793970 - CVE-2020-1710 EAP: field-name is not parsed in accordance to RFC7230
- BZ - 1800585 - CVE-2020-1728 keycloak: security headers missing on REST endpoints
- BZ - 1805501 - CVE-2020-10693 hibernate-validator: Improper input validation in the interpolation of constraint error messages
- BZ - 1807707 - CVE-2020-1748 Wildfly: Improper authorization issue in WildFlySecurityManager when using alternative protection domain
- BZ - 1815470 - CVE-2020-10673 jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution
- BZ - 1815495 - CVE-2020-10672 jackson-databind: mishandles the interaction between serialization gadgets and typing which could result in remote command execution
- BZ - 1816216 - CVE-2020-11612 netty: compression/decompression codecs don't enforce limits on buffer allocation sizes
- BZ - 1825714 - CVE-2020-10714 wildfly-elytron: session fixation when using FORM authentication
- BZ - 1828476 - CVE-2020-10718 wildfly: exposed setting of TCCL via the EmbeddedManagedProcess API
- BZ - 1834512 - CVE-2020-10740 wildfly: unsafe deserialization in Wildfly Enterprise Java Beans
- BZ - 1843849 - CVE-2020-10758 keycloak: DoS by sending multiple simultaneous requests with a Content-Length header value greater than actual byte count of request body
- BZ - 1851327 - CVE-2020-14307 wildfly: EJB SessionOpenInvocations may not be removed properly after a response is received causing Denial of Service
CVEs
References
Vulmon