Intel Microcode Updates for Windows 10 / Windows Server 2016 / Windows Server 2019 (May 2019) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)

medium Nessus Plugin ID 125149

Synopsis

The remote Windows host is missing a microcode update.

Description

The remote Windows host is missing a security update. It is, therefore, missing microcode updates to address the following vulnerabilities:

- Microarchitectural Data Sampling Uncacheable Memory (MDSUM) (CVE-2019-11091)
- Microarchitectural Store Buffer Data Sampling (MSBDS) (CVE-2018-12126)
- Microarchitectural Load Port Data Sampling (MLPDS) (CVE-2018-12127)
- Microarchitectural Fill Buffer Data Sampling (MFBDS) (CVE-2018-12130)

Note that Nessus did not actually test for these flaws nor checked the target processor architecture but instead, has relied on the version of mcupdate_GenuineIntel.dll to be latest for supported Windows release.

Solution

Microsoft has released security updates for Windows 10, Windows Server 2016 and Windows Server 2019.

See Also

http://www.nessus.org/u?d6715877

http://www.nessus.org/u?9c600e5d

http://www.nessus.org/u?16fb167c

http://www.nessus.org/u?bc221b4a

http://www.nessus.org/u?f1b3721e

http://www.nessus.org/u?8c467280

Plugin Details

Severity: Medium

ID: 125149

File Name: smb_nt_ms19_may_microcode.nasl

Version: 1.7

Type: local

Agent: windows

Published: 5/15/2019

Updated: 3/19/2021

Configuration: Enable paranoid mode

Risk Information

VPR

Risk Factor: High

Score: 7.1

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.5

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2018-12126

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2019

Vulnerability Publication Date: 5/14/2019

Reference Information

CVE: CVE-2019-11091, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130

BID: 108330

MSKB: 4494175, 4494452, 4494453, 4494454, 4497165

MSFT: MS19-4494175, MS19-4494452, MS19-4494453, MS19-4494454, MS19-4497165