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Fedora 43 systemd Important Bugfix for Privilege Escalation 2026-0e8eeb6a8a

fedora
Calendar Grey March 15, 2026
Dist Fedora Esm H88
Bugfixes for systemd in Fedora 43 enhance sanitization against invalid firmware values.
A bunch of bugfixes More sanitization for invalid values received from hardware and firmware

Summary

systemd is a system and service manager that runs as PID 1 and starts the rest

of the system. It provides aggressive parallelization capabilities, uses socket

and D-Bus activation for starting services, offers on-demand starting of

daemons, keeps track of processes using Linux control groups, maintains mount

and automount points, and implements an elaborate transactional dependency-based

service control logic. systemd supports SysV and LSB init scripts and works as a

replacement for sysvinit. Other parts of this package are a logging daemon,

utilities to control basic system configuration like the hostname, date, locale,

maintain a list of logged-in users, system accounts, runtime directories and

settings, and a logging daemons.

This package was built from the v258-stable branch of systemd.

Update Information:

A bunch of bugfixes More sanitization for invalid values received from hardware and firmware

Change Log

* Fri Mar 13 2026 Zbigniew J\u0119drzejewski-Szmek - 258.7-1 - Version 258.7 - Even more fixes, incl. a fix for a bad patch in .6 * Thu Mar 12 2026 Zbigniew J\u0119drzejewski-Szmek - 258.6-1 - Version 258.6 - A bunch of bugfixes - More sanitization for invalid values received from hardware and firmware

References


[ 1 ] Bug #2447267 - CVE-2026-4105 systemd: systemd: Privilege escalation via improper access control in RegisterMachine D-Bus method [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=2447267

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2026-0e8eeb6a8a' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
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Critical

Name: systemd
Product: Fedora 43
Version: 258.7
Release: 1.fc43
Summary: System and Service Manager

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