- Vulnerability/
- RHSA-2021:2070
RHSA-2021:2070: Moderate: Red Hat Single Sign-On 7.4.7 security update
First published: Thu May 20 2021(Updated: )
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.<br>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.<br>Security Fix(es):<br><li> netty: Information disclosure via the local system temporary directory (CVE-2021-21290)</li> <li> netty: possible request smuggling in HTTP/2 due missing validation (CVE-2021-21295)</li> <li> keycloak: Backchannel logout not working when Principal Type is set to Attribute Name for external SAML IDP (CVE-2021-3461)</li> <li> keycloak: Internationalized domain name (IDN) homograph attack to impersonate users (CVE-2021-3424)</li> 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Single Sign On | ||
| Red Hat Single Sign On | <7.4.7 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1927028
- https://bugzilla.redhat.com/show_bug.cgi?id=1933320
- https://bugzilla.redhat.com/show_bug.cgi?id=1937364
- https://bugzilla.redhat.com/show_bug.cgi?id=1941565
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.4
- https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/
- https://access.redhat.com/errata/RHSA-2021:2070 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2021:2070?
The severity of RHSA-2021:2070 is classified as Critical.
How do I fix RHSA-2021:2070?
To fix RHSA-2021:2070, you should update Red Hat Single Sign-On to the latest version provided in the advisory.
What versions of Red Hat Single Sign-On are affected by RHSA-2021:2070?
Red Hat Single Sign-On versions prior to 7.4.7 are affected by RHSA-2021:2070.
What vulnerabilities are addressed in RHSA-2021:2070?
RHSA-2021:2070 addresses multiple vulnerabilities related to improper authorization in Red Hat Single Sign-On.
Is a restart required after applying the fix for RHSA-2021:2070?
Yes, a restart of the Red Hat Single Sign-On service is recommended after applying the fix for RHSA-2021:2070.
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