10 - RHSA-2019:2091

Problem Description:

An update for systemd is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

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: line splitting via fgets() allows for state injection during daemon-reexec (CVE-2018-15686)

* systemd: out-of-bounds read when parsing a crafted syslog message (CVE-2018-16866)

* systemd: kills privileged process if unprivileged PIDFile was tampered (CVE-2018-16888)

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 7.7 Release Notes linked from the References section.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1267552 - systemd-journal-remote fails with a cryptic error message if output file doesn't have extension .journal 1272485 - Difference in multilib ppc64 and ppc in case of intltool translation 1463678 - Cannot use "-b" and "-D" parameters to journalctl command simultaneously 1585913 - systemd backport fix for nofile improvements in containerized environments 1619543 - Assertion failure when system journal rotation fails 1631625 - [RHEL7.6]hostnamectl set-hostname fail with 63 characters hostname 1639071 - CVE-2018-15686 systemd: line splitting via fgets() allows for state injection during daemon-reexec 1641764 - Backport patch to allow tmpfiles e directive to accept glob-style wildcards 1643172 - escaped systemd unit returns wrongly escaped (and different) Id 1651257 - access to automounted dir with expiration time set can hang 1653867 - CVE-2018-16866 systemd: out-of-bounds read when parsing a crafted syslog message 1660422 - rescue.service announces itself as emergency mode, not rescue mode. 1662867 - CVE-2018-16888 systemd: kills privileged process if unprivileged PIDFile was tampered 1663365 - systemd-networkd ignores UseRoutes=false in [DHCP] of .network file 1666612 - Rules "uname -p" and "systemd-detect-virt" kill the system boot time on large systems 1691511 - Repeated systemd-run --scope -- mount -t tmpfs tmpfs / under directories bind-mounted to themselves result in E2BIG failures 1693559 - sd-bus: deal with cookie overruns 1693716 - core/shutdown.c: in_container is used before it is defined 1697909 - [RHEL7.7] Failed to start udev Wait for Complete Device Initialization.