RedHat: RHSA-2021-2065:01 Moderate: Red Hat Single Sign-On 7.4.7 security
Summary
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 7.4.7 serves as a replacement for
Red Hat Single Sign-On 7.4.6, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.
Security Fix(es):
* keycloak: Backchannel logout not working when Principal Type is set to
Attribute Name for external SAML IDP (CVE-2021-3461)
* keycloak: Internationalized domain name (IDN) homograph attack to
impersonate users (CVE-2021-3424)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2021-3424 https://access.redhat.com/security/cve/CVE-2021-3461 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/html/release_notes/index
Package List
Red Hat Single Sign-On 7.4 for RHEL 8:
Source:
rh-sso7-keycloak-9.0.13-1.redhat_00006.1.el8sso.src.rpm
noarch:
rh-sso7-keycloak-9.0.13-1.redhat_00006.1.el8sso.noarch.rpm
rh-sso7-keycloak-server-9.0.13-1.redhat_00006.1.el8sso.noarch.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
New Red Hat Single Sign-On 7.4.7 packages are now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Single Sign-On 7.4 for RHEL 8 - noarch
Bugs Fixed
1933320 - CVE-2021-3424 keycloak: Internationalized domain name (IDN) homograph attack to impersonate users1941565 - CVE-2021-3461 keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP
