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

Medium Nessus Plugin ID 107022

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'.

See Also

https://bugzilla.suse.com/1057974

https://bugzilla.suse.com/1068588

https://bugzilla.suse.com/1071224

https://bugzilla.suse.com/1071311

https://bugzilla.suse.com/1075801

https://bugzilla.suse.com/1077925

https://www.suse.com/security/cve/CVE-2017-18078.html

http://www.nessus.org/u?104eee07

Plugin Details

Severity: Medium

ID: 107022

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

Version: 3.5

Type: local

Agent: unix

Published: 2018/02/27

Modified: 2018/08/15

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4.6

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

CVSSv3

Base Score: 7.8

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

Vulnerability Information

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

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

Patch Publication Date: 2018/02/26

Reference Information

CVE: CVE-2017-18078