RHSA-2022:7411 - Security Advisory

Topic

New Red Hat Single Sign-On 7.6.1 packages are now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 7.6.1 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.0, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• jackson-databind: denial of service via a large depth of nested objects (CVE-2020-36518)
• h2: Remote Code Execution in Console (CVE-2021-42392)
• netty: control chars in header names may lead to HTTP request smuggling (CVE-2021-43797)
• xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr (CVE-2022-0084)
• keycloak: Stored XSS in groups dropdown (CVE-2022-0225)
• wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled (CVE-2022-0866)
• keycloak: Uploading of SAML javascript protocol mapper scripts through the admin console (CVE-2022-2668)

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

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Single Sign-On 7.6 for RHEL 9 x86_64

Fixes

• BZ - 2031958 - CVE-2021-43797 netty: control chars in header names may lead to HTTP request smuggling
• BZ - 2039403 - CVE-2021-42392 h2: Remote Code Execution in Console
• BZ - 2040268 - CVE-2022-0225 keycloak: Stored XSS in groups dropdown
• BZ - 2060929 - CVE-2022-0866 wildfly: Wildfly management of EJB Session context returns wrong caller principal with Elytron Security enabled
• BZ - 2064226 - CVE-2022-0084 xnio: org.xnio.StreamConnection.notifyReadClosed log to debug instead of stderr
• BZ - 2064698 - CVE-2020-36518 jackson-databind: denial of service via a large depth of nested objects
• BZ - 2115392 - CVE-2022-2668 keycloak: Uploading of SAML javascript protocol mapper scripts through the admin console

CVEs

• CVE-2020-36518
• CVE-2021-42392
• CVE-2021-42575
• CVE-2021-43797
• CVE-2022-0084
• CVE-2022-0225
• CVE-2022-0853
• CVE-2022-0866
• CVE-2022-1319
• CVE-2022-2668
• CVE-2022-23913

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/articles/11258