The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit.
Security Fix(es):
systemd: Spoofing of XDG_SEAT allows for actions to be checked against “allow_active” instead of “allow_any” (CVE-2019-3842)
systemd: Mishandles numerical usernames beginning with decimal digits or 0x followed by hexadecimal digits (CVE-2020-13776)
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 Rocky Linux 8.4 Release Notes linked from the References section.
bugzilla.redhat.com/show_bug.cgi?id=1668521
bugzilla.redhat.com/show_bug.cgi?id=1740657
bugzilla.redhat.com/show_bug.cgi?id=1755287
bugzilla.redhat.com/show_bug.cgi?id=1764282
bugzilla.redhat.com/show_bug.cgi?id=1812972
bugzilla.redhat.com/show_bug.cgi?id=1819868
bugzilla.redhat.com/show_bug.cgi?id=1845534
bugzilla.redhat.com/show_bug.cgi?id=1862714
bugzilla.redhat.com/show_bug.cgi?id=1865840
bugzilla.redhat.com/show_bug.cgi?id=1868831
bugzilla.redhat.com/show_bug.cgi?id=1868877
bugzilla.redhat.com/show_bug.cgi?id=1870638
bugzilla.redhat.com/show_bug.cgi?id=1871139
bugzilla.redhat.com/show_bug.cgi?id=1880270
bugzilla.redhat.com/show_bug.cgi?id=1885553
bugzilla.redhat.com/show_bug.cgi?id=1887181
bugzilla.redhat.com/show_bug.cgi?id=1888912
bugzilla.redhat.com/show_bug.cgi?id=1889996
errata.rockylinux.org/RLSA-2021:1611