SUSE SLES12 Security Update : systemd (SUSE-SU-2020:0353-1)

high Nessus Plugin ID 133547

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Synopsis

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

Description

This update for systemd provides the following fixes :

CVE-2020-1712 (bsc#bsc#1162108) Fix a heap use-after-free vulnerability, when asynchronous Polkit queries were performed while handling Dbus messages. A local unprivileged attacker could have abused this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted Dbus messages.

sd-bus: Deal with cookie overruns. (bsc#1150595)

rules: Add by-id symlinks for persistent memory. (bsc#1140631)

Drop the old fds used for logging and reopen them in the sub process before doing any new logging. (bsc#1154948)

Fix warnings thrown during package installation (bsc#1154043)

Fix for systemctl hanging by restart. (bsc#1139459)

man: mention that alias names are only effective after 'systemctl enable'. (bsc#1151377)

ask-password: improve log message when inotify limit is reached.
(bsc#1155574)

udevd: wait for workers to finish when exiting. (bsc#1106383)

core: fragments of masked units ought not be considered for NeedDaemonReload. (bsc#1156482)

udev: fix 'NULL' deref when executing rules. (bsc#1151506)

Introduce function for reading virtual files in 'sysfs' and 'procfs'.
(bsc#1133495, bsc#1159814)

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 Software Development Kit 12-SP5 :

zypper in -t patch SUSE-SLE-SDK-12-SP5-2020-353=1

SUSE Linux Enterprise Server 12-SP5 :

zypper in -t patch SUSE-SLE-SERVER-12-SP5-2020-353=1

Plugin Details

Severity: High

ID: 133547

File Name: suse_SU-2020-0353-1.nasl

Version: 1.4

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 2/7/2020

Updated: 1/13/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-1712

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/6/2020

Vulnerability Publication Date: 3/31/2020

Reference Information

CVE: CVE-2020-1712

Detections

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