Issued:
2021-09-14
Updated:
2021-09-14

RHSA-2021:3528 - Moderate: Red Hat Single Sign-On 7.4.9 security update on RHEL 7

Synopsis

Moderate: Red Hat Single Sign-On 7.4.9 security update on RHEL 7

Type/Severity

Security Advisory Moderate

Topic

New Red Hat Single Sign-On 7.4.9 packages are now available for Red Hat Enterprise Linux 7.

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 7.4 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 7.4.9 serves as a replacement for Red Hat Single Sign-On 7.4.8, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

  • jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception (CVE-2020-28491)

  • keycloak: Brute force attack is possible even after the account lockout (CVE-2021-3513)

  • keycloak: Anyone can register a new device when there is no device registered for passwordless login (CVE-2021-3632)

  • keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly could lead to a DoS attack (CVE-2021-3637)

  • keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity (CVE-2020-35509)

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

ProductVersionArch
Red Hat Single Sign-On7.4x86_64

Updated Packages

  • rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el7sso.noarch.rpm
  • rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el7sso.src.rpm
  • rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el7sso.noarch.rpm

Fixes

CVEs

References

Additional information