RHSA-2021:1983 — Security Advisory

Red Hat Security Advisory: idm:DL1 security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · May 19, 2021

Updated · November 22, 2025

Topic

An update for the idm:DL1 module is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. 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 Identity Management (IdM) is a centralized authentication, identity management, and authorization solution for both traditional and cloud-based enterprise environments.

Security Fix(es):

  • slapi-nis: NULL dereference (DoS) with specially crafted Binding DN (CVE-2021-3480)

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.

Related CVEs

RHSA-2021:1983 — Red Hat Security Advisory: idm:DL1 security update | PulseLinux