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RHEL 7 : systemd (RHSA-2019:1502)

medium Nessus Plugin ID 126025

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Synopsis

The remote Red Hat host is missing a security update for systemd.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:1502 advisory.

 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: Insufficient input validation in bus_process_object() resulting in PID 1 crash (CVE-2019-6454)

 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.

 Bug Fix(es):

 * Race between systemctl start (and likely others) vs systemctl daemon-reload (BZ#1709184)

 * systemd segfaults running test case https://github.com/systemd/systemd-fedora-ci/tree/master/issue-1981 (BZ#1709185)

 * systemd doesn't delete stub unit files created for session scopes (BZ#1709187)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL systemd package based on the guidance in RHSA-2019:1502.

See Also

http://www.nessus.org/u?8ca04890

https://access.redhat.com/errata/RHSA-2019:1502

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1667032

https://bugzilla.redhat.com/show_bug.cgi?id=1709184

https://bugzilla.redhat.com/show_bug.cgi?id=1709185

https://bugzilla.redhat.com/show_bug.cgi?id=1709187

Plugin Details

Severity: Medium

ID: 126025

File Name: redhat-RHSA-2019-1502.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/19/2019

Updated: 11/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2019-6454

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:systemd, p-cpe:/a:redhat:enterprise_linux:systemd-sysv, p-cpe:/a:redhat:enterprise_linux:libgudev1-devel, p-cpe:/a:redhat:enterprise_linux:systemd-python, p-cpe:/a:redhat:enterprise_linux:systemd-libs, p-cpe:/a:redhat:enterprise_linux:systemd-networkd, cpe:/o:redhat:rhel_eus:7.4, p-cpe:/a:redhat:enterprise_linux:libgudev1, p-cpe:/a:redhat:enterprise_linux:systemd-resolved, p-cpe:/a:redhat:enterprise_linux:systemd-journal-gateway, p-cpe:/a:redhat:enterprise_linux:systemd-devel

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: 6/18/2019

Vulnerability Publication Date: 3/21/2019

Reference Information

CVE: CVE-2019-6454

CWE: 20

RHSA: 2019:1502