Detections
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Amazon Linux 2 : microcode_ctl (ALAS-2021-1663)

medium Nessus Plugin ID 150979

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of microcode_ctl installed on the remote host is prior to 2.1-47. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1663 advisory.

 - Improper removal of sensitive information before storage or transfer in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2020-8696)

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

Solution

Run 'yum update microcode_ctl' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1663.html

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

Plugin Details

Severity: Medium

ID: 150979

File Name: al2_ALAS-2021-1663.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/23/2021

Updated: 6/23/2021

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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 Score Source: CVE-2020-8696

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: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:microcode_ctl-debuginfo, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:microcode_ctl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/16/2021

Vulnerability Publication Date: 11/11/2020

Reference Information

CVE: CVE-2020-8696

ALAS: 2021-1663