Detections
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MiracleLinux 7 : microcode_ctl-2.1-29.16.el7 (AXEA:2018-3321:06)

medium Nessus Plugin ID 291432

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Synopsis

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

Description

The remote MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXEA:2018-3321:06 advisory.

 - Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis. (CVE-2018-3620)

 - Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4. (CVE-2018-3639)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected microcode_ctl package.

See Also

https://tsn.miraclelinux.com/en/node/9767

Plugin Details

Severity: Medium

ID: 291432

File Name: miracle_linux_AXEA-2018-3321.nasl

Version: 1.1

Type: local

Published: 1/19/2026

Updated: 1/19/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: N/a

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.9

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

CVSS Score Source: CVE-2018-3620

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 5.2

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:miracle:linux:7, p-cpe:/a:miracle:linux:microcode_ctl

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/MiracleLinux/release, Host/MiracleLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/11/2018

Vulnerability Publication Date: 5/21/2018

Reference Information

CVE: CVE-2018-3620, CVE-2018-3639

IAVA: 2018-A-0170