Red Hat Product Errata RHSA-2021:3528 - Security Advisory
Issued:
2021-09-14
Updated:
2021-09-14

RHSA-2021:3528 - Security Advisory

Synopsis

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

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

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

  • Red Hat Single Sign-On 7.4 for RHEL 7 x86_64

Fixes

  • BZ - 1912427 - CVE-2020-35509 keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity
  • BZ - 1930423 - CVE-2020-28491 jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception
  • BZ - 1953439 - CVE-2021-3513 keycloak: Brute force attack is possible even after the account lockout
  • BZ - 1978196 - CVE-2021-3632 keycloak: Anyone can register a new device when there is no device registered for passwordless login
  • BZ - 1979638 - CVE-2021-3637 keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly could lead to a DoS attack

Red Hat Single Sign-On 7.4 for RHEL 7

SRPM
rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el7sso.src.rpm SHA-256: f4f7fc109527c71681ab172e893525671f01f1b255b4dbb949b8878ce75c96fd
x86_64
rh-sso7-keycloak-9.0.15-1.redhat_00002.1.el7sso.noarch.rpm SHA-256: 505d711cd478ce97b381e313c796d3f87a9ec7a7b6ee052452a9f37c2174414f
rh-sso7-keycloak-server-9.0.15-1.redhat_00002.1.el7sso.noarch.rpm SHA-256: c45d3b793755bdb1b5a96ee594390c3f8fa193bdba597aed13827b14c583c88f

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.