RHSA-2021:2721: Important: systemd security update
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.<br>Security Fix(es):<br><li> systemd: uncontrolled allocation on the stack in function unitnamepathescape leads to crash (CVE-2021-33910)</li> 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:2721?
The severity of RHSA-2021:2721 is classified as important.
How do I fix RHSA-2021:2721?
To fix RHSA-2021:2721, update systemd and related packages to version 239-31.el8_2.4 or later.
Who is affected by RHSA-2021:2721?
Systems running the affected versions of systemd on Red Hat Enterprise Linux 8.2 or compatible distributions are impacted.
What components are affected by RHSA-2021:2721?
RHSA-2021:2721 impacts several systemd packages including systemd, systemd-container, systemd-libs, and more.
Is there a workaround for RHSA-2021:2721 before applying the patch?
There are no recommended workarounds for RHSA-2021:2721; it is advised to apply the security update as soon as possible.