RHEL 7 : systemd (RHSA-2019:0049)

high Nessus Plugin ID 121173


The remote Red Hat host is missing one or more security updates.


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 Important. 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.

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: Out-of-bounds heap write in systemd-networkd dhcpv6 option handling (CVE-2018-15688)

* systemd: stack overflow when calling syslog from a command with long cmdline (CVE-2018-16864)

* systemd: stack overflow when receiving many journald entries (CVE-2018-16865)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank Ubuntu Security Team for reporting CVE-2018-15688 and Qualys Research Labs for reporting CVE-2018-16864 and CVE-2018-16865. Upstream acknowledges Felix Wilhelm (Google) as the original reporter of CVE-2018-15688.


Update the affected packages.

See Also





Plugin Details

Severity: High

ID: 121173

File Name: redhat-RHSA-2019-0049.nasl

Version: 1.6

Type: local

Agent: unix

Published: 1/15/2019

Updated: 2/1/2022

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information


Risk Factor: Medium

Score: 6.7


Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.5

Vector: AV:A/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2018-15688


Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:libgudev1, p-cpe:/a:redhat:enterprise_linux:libgudev1-devel, p-cpe:/a:redhat:enterprise_linux:systemd, p-cpe:/a:redhat:enterprise_linux:systemd-debuginfo, p-cpe:/a:redhat:enterprise_linux:systemd-devel, p-cpe:/a:redhat:enterprise_linux:systemd-journal-gateway, p-cpe:/a:redhat:enterprise_linux:systemd-libs, p-cpe:/a:redhat:enterprise_linux:systemd-networkd, p-cpe:/a:redhat:enterprise_linux:systemd-python, p-cpe:/a:redhat:enterprise_linux:systemd-resolved, p-cpe:/a:redhat:enterprise_linux:systemd-sysv, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/14/2019

Vulnerability Publication Date: 10/26/2018

Reference Information

CVE: CVE-2018-15688, CVE-2018-16864, CVE-2018-16865

RHSA: 2019:0049