RHSA-2022:0448 - Security Advisory

Topic

New Red Hat Single Sign-On 7.5.1 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 7.5 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 7.5.1 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.5.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• undertow: client side invocation timeout raised when calling over HTTP and

HTTP2 (CVE-2021-3859)

• log4j: Remote code execution in Log4j 1.x when application is configured to

use JMSSink (CVE-2022-23302)

• log4j: SQL injection in Log4j 1.x when application is configured to use

JDBCAppender (CVE-2022-23305)

• log4j: Unsafe deserialization flaw in Chainsaw log viewer (CVE-2022-23307)
• log4j: Remote code execution in Log4j 1.x when application is configured to

use JMSAppender (CVE-2021-4104)

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 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 7.5 for RHEL 8 x86_64

Fixes

• BZ - 2010378 - CVE-2021-3859 undertow: client side invocation timeout raised when calling over HTTP2
• BZ - 2031667 - CVE-2021-4104 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSAppender
• BZ - 2041949 - CVE-2022-23302 log4j: Remote code execution in Log4j 1.x when application is configured to use JMSSink
• BZ - 2041959 - CVE-2022-23305 log4j: SQL injection in Log4j 1.x when application is configured to use JDBCAppender
• BZ - 2041967 - CVE-2022-23307 log4j: Unsafe deserialization flaw in Chainsaw log viewer
• CIAM-1976 - [CVE-2021-3859 (undertow)] RPMs for RH-SSO 7.5.1 ZIP distribution

CVEs

• CVE-2021-3859
• CVE-2021-4104
• CVE-2022-23302
• CVE-2022-23305
• CVE-2022-23307

References

• https://access.redhat.com/security/updates/classification/#important
• https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.5/