RHSA-2022:2110 — Security Advisory

Red Hat Security Advisory: grub2 security, bug fix, and enhancement update

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Severity

Low

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · May 10, 2022

Updated · July 20, 2026

Topic

An update for grub2 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 grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices.

Security Fix(es):

  • grub2: Incorrect permission in grub.cfg allow unprivileged user to read the file content (CVE-2021-3981)

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 8.6 Release Notes linked from the References section.

Related CVEs

RHSA-2022:2110 — Red Hat Security Advisory: grub2 security, bug fix, and enhancement update | PulseLinux