Issued:
2020-08-18
Updated:
2020-08-18

RHSA-2020:3501 - Important: Red Hat Single Sign-On 7.4.2 security update

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

ProductVersionArch
Red Hat Single Sign-OnText-Only Advisoriesx86_64

Fixes

CVEs

References

Additional information