RHSA-2021:4489 — Security Advisory
Red Hat Security Advisory: rpm security, bug fix, and enhancement update
Severity
LowRed Hat Product Security
Products
Official CSAF product identity
Published · November 10, 2021
Updated · June 25, 2026
Topic
An update for rpm is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Low. 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
The RPM Package Manager (RPM) is a command-line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages.
Security Fix(es):
- rpm: missing length checks in hdrblobInit() (CVE-2021-20266)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.