RHEL 7 : microcode_ctl (RHSA-2020:5188)

medium Nessus Plugin ID 143202

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:5188 advisory.

- hw: Information disclosure issue in Intel SGX via RAPL interface (CVE-2020-8695)

- hw: Vector Register Leakage-Active (CVE-2020-8696)

- hw: Fast forward store predictor (CVE-2020-8698)

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

Solution

Update the affected microcode_ctl package.

See Also

https://cwe.mitre.org/data/definitions/200.html

https://cwe.mitre.org/data/definitions/212.html

https://access.redhat.com/security/cve/CVE-2020-8695

https://access.redhat.com/security/cve/CVE-2020-8696

https://access.redhat.com/security/cve/CVE-2020-8698

https://access.redhat.com/errata/RHSA-2020:5188

https://bugzilla.redhat.com/1828583

https://bugzilla.redhat.com/1890355

https://bugzilla.redhat.com/1890356

Plugin Details

Severity: Medium

ID: 143202

File Name: redhat-RHSA-2020-5188.nasl

Version: 1.6

Type: local

Agent: unix

Published: 11/24/2020

Updated: 10/12/2021

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

Risk Information

CVSS Score Source: CVE-2020-8698

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:7.2, p-cpe:/a:redhat:enterprise_linux:microcode_ctl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2020

Vulnerability Publication Date: 11/11/2020

Reference Information

CVE: CVE-2020-8695, CVE-2020-8696, CVE-2020-8698

RHSA: 2020:5188

CWE: 200, 212