Amazon Linux 2023 : microcode_ctl (ALAS2023-2024-559)

medium Nessus Plugin ID 192032

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-559 advisory.

- Non-transparent sharing of return predictor targets between contexts in some Intel Processors may allow an authorized user to potentially enable information disclosure via local access. (CVE-2023-38575) (CVE-2023-38575, CVE-2023-39368)

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

Solution

Run 'dnf update microcode_ctl --releasever 2023.3.20240312' to update your system.

Plugin Details

Severity: Medium

ID: 192032

File Name: al2023_ALAS2023-2024-559.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/13/2024

Updated: 3/15/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, 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-2023-39368

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

CVSS Score Source: CVE-2023-38575

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:microcode_ctl, cpe:/o:amazon:linux:2023

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/13/2024

Vulnerability Publication Date: 3/12/2024

Reference Information

CVE: CVE-2023-38575, CVE-2023-39368

Detections

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