Issued:
2016-07-19
Updated:
2016-07-19

RHSA-2016:1439 - Critical: Red Hat Single Sign-On security update

Synopsis

Critical: Red Hat Single Sign-On security update

Type/Severity

Security Advisory Critical

Topic

A security update is now available for Red Hat Single Sign-On 7.0 from the Customer Portal.

Red Hat Product Security has rated this update as having a security impact of Critical. 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 7.0 is a standalone server, based on the Keycloak project, that provides authentication and standards-based SSO capabilities for web and mobile applications.

This asynchronous patch is a security update for JGroups package in Red Hat Single Sign-On 7.0. More information about this vulnerability is available at: https://access.redhat.com/articles/2360521

Security Fix(es):

  • It was found that JGroups did not require necessary headers for encrypt and auth protocols from new nodes joining the cluster. An attacker could use this flaw to bypass security restrictions, and use this vulnerability to send and receive messages within the cluster, leading to information disclosure, message spoofing, or further possible attacks. (CVE-2016-2141)

The CVE-2016-2141 issue was discovered by Dennis Reed (Red Hat).

Solution

The References section of this erratum contains a download link (you must log in to download the update). Before applying this update, back up your existing Red Hat Single Sign-On installation.

Affected Products

ProductVersionArch
Red Hat Single Sign-OnText-Only Advisoriesx86_64

Fixes

CVEs

References

Additional information