SUSE SLES12 Security Update : systemd (SUSE-SU-2019:0054-1)

Critical Nessus Plugin ID 121061

Synopsis

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

Description

This update for systemd fixes the following issues :

Fix security vulnerabilities CVE-2018-16864 and CVE-2018-16865 (bsc#1120323): Both issues were memory corruptions via attacker-controlled alloca which could have been used to gain root privileges by a local attacker.

Fix security vulnerability CVE-2018-15686 (bsc#1113665): A vulnerability in unit_deserialize of systemd used to allow an attacker to supply arbitrary state across systemd re-execution via NotifyAccess. This could have been used to improperly influence systemd execution and possibly lead to root privilege escalation.

Remedy 2048 character line-length limit in systemd-sysctl code that would cause parser failures if /etc/sysctl.conf contained lines that exceeded this length (bsc#1071558).

Fix a bug in systemd's core timer code that would cause timer looping under certain conditions, resulting in hundreds of syslog messages being written to the journal (bsc#1068588).

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 the SUSE recommended installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 12-SP1-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-SP1-2019-54=1

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1068588

https://bugzilla.suse.com/show_bug.cgi?id=1071558

https://bugzilla.suse.com/show_bug.cgi?id=1113665

https://bugzilla.suse.com/show_bug.cgi?id=1120323

https://www.suse.com/security/cve/CVE-2018-15686/

https://www.suse.com/security/cve/CVE-2018-16864/

https://www.suse.com/security/cve/CVE-2018-16865/

http://www.nessus.org/u?e7f91623

Plugin Details

Severity: Critical

ID: 121061

File Name: suse_SU-2019-0054-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2019/01/10

Updated: 2019/09/10

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.8

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

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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:libgudev-1_0-0, p-cpe:/a:novell:suse_linux:libgudev-1_0-0-32bit, p-cpe:/a:novell:suse_linux:libgudev-1_0-0-debuginfo, p-cpe:/a:novell:suse_linux:libgudev-1_0-0-debuginfo-32bit, p-cpe:/a:novell:suse_linux:libgudev-1_0-devel, p-cpe:/a:novell:suse_linux:libudev-devel, 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-devel, p-cpe:/a:novell:suse_linux:systemd-sysvinit, p-cpe:/a:novell:suse_linux:typelib-1_0-GUdev-1_0, 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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2019/01/09

Vulnerability Publication Date: 2018/10/26

Reference Information

CVE: CVE-2018-15686, CVE-2018-16864, CVE-2018-16865