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CentOS Linux 8 [TuxCare] Security Update: dmidecode (CENTOS-STREAM8:CLSA-2026:1777040413)

high Nessus Plugin ID 351981

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 8 host has a package installed that is affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1777040413 advisory.

 - Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly). (CVE-2023-30630)

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 dmidecode package based on the guidance in TuxCare advisory CENTOS-STREAM8:CLSA-2026:1777040413.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1777040413

http://www.nessus.org/u?2eccefe8

Plugin Details

Severity: High

ID: 351981

File Name: tuxcare_centos_8_CLSA-2026-1777040413.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/30/2026

Updated: 9/30/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.04

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.9

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

CVSS Score Source: CVE-2023-30630

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/24/2026

Vulnerability Publication Date: 4/13/2023

Reference Information

CVE: CVE-2023-30630

CLSA: 2026:1777040413