SUSE SLED12 / SLES12 Security Update : systemd (SUSE-SU-2018:0546-1)

high Nessus Plugin ID 107022

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for systemd fixes the following issues: Security issue fixed :

- CVE-2017-18078: tmpfiles: refuse to chown()/chmod() files which are hardlinked, unless protected_hardlinks sysctl is on. This could be used by local attackers to gain privileges (bsc#1077925) Non Security issues fixed :

- core: use id unit when retrieving unit file state (#8038) (bsc#1075801)

- cryptsetup-generator: run cryptsetup service before swap unit (#5480)

- udev-rules: all values can contain escaped double quotes now (#6890)

- strv: fix buffer size calculation in strv_join_quoted()

- tmpfiles: change ownership of symlinks too

- stdio-bridge: Correctly propagate error

- stdio-bridge: remove dead code

- remove bus-proxyd (bsc#1057974)

- core/timer: Prevent timer looping when unit cannot start (bsc#1068588)

- Make systemd-timesyncd use the openSUSE NTP servers by default Previously systemd-timesyncd used the Google Public NTP servers time{1..4}.google.com

- Don't ship /usr/lib/systemd/system/tmp.mnt at all (bsc#1071224) But we still ship a copy in /var. Users who want to use tmpfs on /tmp are supposed to add a symlink in /etc/ pointing to the copy shipped in /var.
To support the update path we automatically create the symlink if tmp.mount in use is located in /usr.

- Enable systemd-networkd on Leap distros only (bsc#1071311)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-355=1

SUSE Linux Enterprise Software Development Kit 12-SP2:zypper in -t patch SUSE-SLE-SDK-12-SP2-2018-355=1

SUSE Linux Enterprise Server for Raspberry Pi 12-SP2:zypper in -t patch SUSE-SLE-RPI-12-SP2-2018-355=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-355=1

SUSE Linux Enterprise Server 12-SP2:zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-355=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2018-355=1

SUSE Linux Enterprise Desktop 12-SP2:zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2018-355=1

SUSE CaaS Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2018-355=1

OpenStack Cloud Magnum Orchestration 7:zypper in -t patch SUSE-OpenStack-Cloud-Magnum-Orchestration-7-2018-355=1

To bring your system up-to-date, use 'zypper patch'.

Plugin Details

Severity: High

ID: 107022

File Name: suse_SU-2018-0546-1.nasl

Version: 3.10

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 2/27/2018

Updated: 10/27/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2017-18078

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:udev, p-cpe:/a:novell:suse_linux:systemd, p-cpe:/a:novell:suse_linux:libudev1-32bit, p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo, p-cpe:/a:novell:suse_linux:systemd-debugsource, p-cpe:/a:novell:suse_linux:libsystemd0-debuginfo-32bit, p-cpe:/a:novell:suse_linux:libsystemd0, p-cpe:/a:novell:suse_linux:systemd-sysvinit, p-cpe:/a:novell:suse_linux:systemd-debuginfo-32bit, p-cpe:/a:novell:suse_linux:libudev1, p-cpe:/a:novell:suse_linux:libudev1-debuginfo-32bit, p-cpe:/a:novell:suse_linux:udev-debuginfo, p-cpe:/a:novell:suse_linux:libudev1-debuginfo, p-cpe:/a:novell:suse_linux:libsystemd0-32bit, p-cpe:/a:novell:suse_linux:systemd-32bit, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:systemd-debuginfo

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/26/2018

Vulnerability Publication Date: 1/29/2018

Reference Information

CVE: CVE-2017-18078

Detections

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