Amazon Linux 2023 : microcode_ctl (ALAS2023-2023-055)

medium Nessus Plugin ID 173107

Synopsis

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

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-055 advisory.

- Sensitive information accessible by physical probing of JTAG interface for some Intel(R) Processors with SGX may allow an unprivileged user to potentially enable information disclosure via physical access.
(CVE-2022-0005)

- Improper access control for some Intel(R) Xeon(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. (CVE-2022-21131)

- Improper input validation for some Intel(R) Xeon(R) Processors may allow a privileged user to potentially enable denial of service via local access. (CVE-2022-21136)

- Processor optimization removal or modification of security-critical code for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
(CVE-2022-21151)

- Improper isolation of shared resources in some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access. (CVE-2022-21233)

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=2023.0.20230222 ' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-055.html

https://alas.aws.amazon.com/cve/html/CVE-2022-0005.html

https://alas.aws.amazon.com/cve/html/CVE-2022-21131.html

https://alas.aws.amazon.com/cve/html/CVE-2022-21136.html

https://alas.aws.amazon.com/cve/html/CVE-2022-21151.html

https://alas.aws.amazon.com/cve/html/CVE-2022-21233.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Medium

ID: 173107

File Name: al2023_ALAS2023-2023-055.nasl

Version: 1.0

Type: local

Agent: unix

Published: 3/21/2023

Updated: 3/21/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

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-2022-21151

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-2022-21233

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: 2/17/2023

Vulnerability Publication Date: 5/12/2022

Reference Information

CVE: CVE-2022-0005, CVE-2022-21131, CVE-2022-21136, CVE-2022-21151, CVE-2022-21233