SUSE SLES11 Security Update : microcode_ctl (SUSE-SU-2018:0009-1) (Spectre)

Medium Nessus Plugin ID 105541

Synopsis

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

Description

This update for microcode_ctl fixes the following issues: Added microcode_amd_fam17h.bin (bsc#1068032 CVE-2017-5715) This new firmware disables branch prediction on AMD family 17h processor. Also the CPU microcode for Intel Haswell-X, Skylake-X and Broadwell-X chipsets was updated to report both branch prediction control via CPUID flag and ability to control branch prediction via an MSR register. This update is part of a mitigation for a branch predictor based information disclosure attack, and needs additional code in the Linux Kernel to be active (bsc#1068032 CVE-2017-5715)

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 11-SP4:zypper in -t patch slessp4-microcode_ctl-13390=1

SUSE Linux Enterprise Server 11-SP3-LTSS:zypper in -t patch slessp3-microcode_ctl-13390=1

SUSE Linux Enterprise Point of Sale 11-SP3:zypper in -t patch sleposp3-microcode_ctl-13390=1

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

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1068032

https://www.suse.com/security/cve/CVE-2017-5715/

http://www.nessus.org/u?552cb8c2

Plugin Details

Severity: Medium

ID: 105541

File Name: suse_SU-2018-0009-1.nasl

Version: 3.11

Type: local

Agent: unix

Published: 2018/01/04

Updated: 2019/09/10

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.7

Temporal Score: 4.1

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

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

CVSS v3.0

Base Score: 5.6

Temporal Score: 5.4

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:microcode_ctl, cpe:/o:novell:suse_linux:11

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: 2018/01/03

Vulnerability Publication Date: 2018/01/04

Reference Information

CVE: CVE-2017-5715

IAVA: 2018-A-0020