SUSE SLES12 Security Update : dracut (SUSE-SU-2017:2696-1)

high Nessus Plugin ID 103771

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Synopsis

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

Description

This update for dracut fixes the following issues: Security issues fixed :

- CVE-2016-8637: When the early microcode loading was enabled during initrd creation, the initrd would be read-only available for all users, allowing local users to retrieve secrets stored in the initial ramdisk.
(bsc#1008340) Non-security issues fixed :

- Skip iBFT discovery for qla4xxx flashnode session.
(bsc#935320)

- Set MTU and LLADDR for DHCP if specified. (bsc#959803)

- Allow booting from degraded MD arrays with systemd.
(bsc#1017695)

- Start multipath services before local-fs-pre.target.
(bsc#1005410, bsc#1006118, bsc#1007925, bsc#986734, bsc#986838)

- Fixed /sbin/installkernel to handle kernel packages built with 'make bin-rpmpkg'. (bsc#1008648)

- Fixed typo in installkernel script. (bsc#1032576)

- Fixed subnet calculation in mkinitrd. (bsc#1035743)

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 Server 12-LTSS:zypper in -t patch SUSE-SLE-SERVER-12-2017-1669=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1005410

https://bugzilla.suse.com/show_bug.cgi?id=1006118

https://bugzilla.suse.com/show_bug.cgi?id=1007925

https://bugzilla.suse.com/show_bug.cgi?id=1008340

https://bugzilla.suse.com/show_bug.cgi?id=1008648

https://bugzilla.suse.com/show_bug.cgi?id=1017695

https://bugzilla.suse.com/show_bug.cgi?id=1032576

https://bugzilla.suse.com/show_bug.cgi?id=1035743

https://bugzilla.suse.com/show_bug.cgi?id=935320

https://bugzilla.suse.com/show_bug.cgi?id=959803

https://bugzilla.suse.com/show_bug.cgi?id=986734

https://bugzilla.suse.com/show_bug.cgi?id=986838

https://www.suse.com/security/cve/CVE-2016-8637/

http://www.nessus.org/u?37732efd

Plugin Details

Severity: High

ID: 103771

File Name: suse_SU-2017-2696-1.nasl

Version: 3.8

Type: local

Agent: unix

Published: 10/11/2017

Updated: 1/6/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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:dracut, p-cpe:/a:novell:suse_linux:dracut-debuginfo, p-cpe:/a:novell:suse_linux:dracut-debugsource, p-cpe:/a:novell:suse_linux:dracut-fips, 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: 10/10/2017

Vulnerability Publication Date: 8/1/2018

Reference Information

CVE: CVE-2016-8637