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RedHat Enterprise Linux 7 RHSA-2019-2091-01 Moderate: Systemd Security Fix

red hat
Calendar Grey August 6, 2019
Dist Redhat Esm H88
Red Hat has issued a significant security patch for systemd on RHEL 7, rectifying various vulnerabilities and implementing improvements.
An update for systemd is now available for Red Hat Enterprise Linux 7

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: 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.

Topics%20covered

Topics Covered

security advisory moderate security issue bug fix red hat enterprise linux systemd daemon process

References

https://access.redhat.com/security/cve/CVE-2018-15686 https://access.redhat.com/security/cve/CVE-2018-16866 https://access.redhat.com/security/cve/CVE-2018-16888 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: systemd-219-67.el7.src.rpm
x86_64: libgudev1-219-67.el7.i686.rpm libgudev1-219-67.el7.x86_64.rpm systemd-219-67.el7.x86_64.rpm systemd-debuginfo-219-67.el7.i686.rpm systemd-debuginfo-219-67.el7.x86_64.rpm systemd-libs-219-67.el7.i686.rpm systemd-libs-219-67.el7.x86_64.rpm systemd-python-219-67.el7.x86_64.rpm systemd-sysv-219-67.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libgudev1-devel-219-67.el7.i686.rpm libgudev1-devel-219-67.el7.x86_64.rpm systemd-debuginfo-219-67.el7.i686.rpm systemd-debuginfo-219-67.el7.x86_64.rpm systemd-devel-219-67.el7.i686.rpm systemd-devel-219-67.el7.x86_64.rpm systemd-journal-gateway-219-67.el7.x86_64.rpm systemd-networkd-219-67.el7.x86_64.rpm systemd-resolved-219-67.el7.i686.rpm systemd-resolved-219-67.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: systemd-219-67.el7.src.rpm
x86_64: libgudev1-219-67.el7.i686.rpm libgudev1-219-67.el7.x86_64.rpm systemd-219-67.el7.x86_64.rpm systemd-debuginfo-219-67.el7.i686.rpm systemd-debuginfo-219-67.el7.x86_64.rpm systemd-libs-219-67.el7.i686.rpm systemd-libs-219-67.el7.x86_64.rpm systemd-python-219-67.el7.x86_64.rpm systemd-sysv-219-67.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:

Read the Full Advisory


Advisory ID: RHSA-2019:2091-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2091
Issue date: 2019-08-06

Topic

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 impactof Moderate. 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 moderate security issue bug fix red hat enterprise linux systemd daemon process

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

Bugs Fixed

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

Read the Full Advisory

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