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Red Hat Enterprise Linux 8 RHSA-2020:4553-01 Low: Systemd Memory Leak Issue

red hat
Calendar Grey November 4, 2020
Dist Redhat Esm H88
New release for systemd in Red Hat Enterprise Linux 8 addresses minor security concerns and includes various bug corrections.
An update for systemd is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

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: memory leak in button_open() in login/logind-button.c when udev events are received (CVE-2019-20386)
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 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix low severity systemd

References

https://access.redhat.com/security/cve/CVE-2019-20386 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/index

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: systemd-239-40.el8.src.rpm
aarch64: systemd-239-40.el8.aarch64.rpm systemd-container-239-40.el8.aarch64.rpm systemd-container-debuginfo-239-40.el8.aarch64.rpm systemd-debuginfo-239-40.el8.aarch64.rpm systemd-debugsource-239-40.el8.aarch64.rpm systemd-devel-239-40.el8.aarch64.rpm systemd-journal-remote-239-40.el8.aarch64.rpm systemd-journal-remote-debuginfo-239-40.el8.aarch64.rpm systemd-libs-239-40.el8.aarch64.rpm systemd-libs-debuginfo-239-40.el8.aarch64.rpm systemd-pam-239-40.el8.aarch64.rpm systemd-pam-debuginfo-239-40.el8.aarch64.rpm systemd-tests-239-40.el8.aarch64.rpm systemd-tests-debuginfo-239-40.el8.aarch64.rpm systemd-udev-239-40.el8.aarch64.rpm systemd-udev-debuginfo-239-40.el8.aarch64.rpm
ppc64le: systemd-239-40.el8.ppc64le.rpm systemd-container-239-40.el8.ppc64le.rpm systemd-container-debuginfo-239-40.el8.ppc64le.rpm systemd-debuginfo-239-40.el8.ppc64le.rpm systemd-debugsource-239-40.el8.ppc64le.rpm systemd-devel-239-40.el8.ppc64le.rpm systemd-journal-remote-239-40.el8.ppc64le.rpm systemd-journal-remote-debuginfo-239-40.el8.ppc64le.rpm systemd-libs-239-40.el8.ppc64le.rpm systemd-libs-debuginfo-239-40.el8.ppc64le.rpm systemd-pam-239-40.el8.ppc64le.rpm systemd-pam-debuginfo-239-40.el8.ppc64le.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:4553-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4553
Issue date: 2020-11-03

Topic

An update for systemd is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix low severity systemd

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1737283 - backport ExecCondition

1748840 - script generated by systemd-fstab-generator which is mounting a plain file under /tmp can start tmp.mount

1763435 - Backport support for MemoryMin1766479 - Systemd does not attempt to kill child processes if ExecStopPost is set

1770379 - RFE: backport CPUQuotaPeriodSec support

1793533 - systemd sends tons of useless PropertiesChanged messages when a mount happens

1793979 - CVE-2019-20386 systemd: memory leak in button_open() in login/logind-button.c when udev events are received

1796128 - Lazy setup of inotify_fd in sd-journal may cause clients to leak file descriptors1798046 - Services with Restart=always fail to restart when it has a dependent service with StopWhenUnneeded=true

1808051 - "systemd-udevd: inotify_add_watch(11, /dev/dm-1, 10) failed: No such file or directory" when converting to dm-writecache

1812894 - please backport systemd.cpu_affinity= for OpenShift performance tuning

1816908 - add more info about "OnCalendar=" in systemd man page

1820112 - Veritas NetBackup Engineering would like an official RHEL method to create /etc/udev/rules.d/60-persistent-tape.rules

1823767 - Backport necessary test suite patches for TEST-24-UNIT-TESTS

1829798 - backport: core: coldplug possible nop_job

1829867 - systemd segfaults reloading while serializing a service executing a ExecStartPost command

1830861 - Backport support for cgroup v2 freezer

Read the Full Advisory

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