RLSA-2021:1611

    Dashboard / Vulnerabilities / RLSA-2021:1611

    RLSA-2021:1611

    Published: 18 May 2021Last Modified: 4 Feb 2026

    Summary: Moderate: systemd security, bug fix, and enhancement update

    Details: 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.

    References: https://errata.rockylinux.org/RLSA-2021:1611, https://bugzilla.redhat.com/show_bug.cgi?id=1668521, https://bugzilla.redhat.com/show_bug.cgi?id=1740657, https://bugzilla.redhat.com/show_bug.cgi?id=1755287, https://bugzilla.redhat.com/show_bug.cgi?id=1764282, https://bugzilla.redhat.com/show_bug.cgi?id=1812972, https://bugzilla.redhat.com/show_bug.cgi?id=1819868, https://bugzilla.redhat.com/show_bug.cgi?id=1845534, https://bugzilla.redhat.com/show_bug.cgi?id=1862714, https://bugzilla.redhat.com/show_bug.cgi?id=1865840, https://bugzilla.redhat.com/show_bug.cgi?id=1868831, https://bugzilla.redhat.com/show_bug.cgi?id=1868877, https://bugzilla.redhat.com/show_bug.cgi?id=1870638, https://bugzilla.redhat.com/show_bug.cgi?id=1871139, https://bugzilla.redhat.com/show_bug.cgi?id=1880270, https://bugzilla.redhat.com/show_bug.cgi?id=1885553, https://bugzilla.redhat.com/show_bug.cgi?id=1887181, https://bugzilla.redhat.com/show_bug.cgi?id=1888912, https://bugzilla.redhat.com/show_bug.cgi?id=1889996

    Affected packages

    Package

    Name: systemd

    Purl: pkg:rpm/rocky-linux/systemd?distro=rocky-linux-8-4-legacy&epoch=0

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0:239-45.el8

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    RLSA-2021:1611 | CVE-DB