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TencentOS Server 4: microcode_ctl (TSSA-2025:0227)

high Nessus Plugin ID 276024

Synopsis

The remote TencentOS Server 4 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0227 advisory.

 Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

 CVE-2024-39355:
 Improper handling of physical or environmental conditions in some Intel(R) Processors may allow an authenticated user to enable denial of service via local access.

 CVE-2024-39279:
 Insufficient granularity of access control in UEFI firmware in some Intel(R) processors may allow a authenticated user to potentially enable denial of service via local access.

 CVE-2024-37020:
 Sequence of processor instructions leads to unexpected behavior in the Intel(R) DSA V1.0 for some Intel(R) Xeon(R) Processors may allow an authenticated user to potentially enable denial of service via local access.

 CVE-2024-36293:
 Improper access control in the EDECCSSA user leaf function for some Intel(R) Processors with Intel(R) SGX may allow an authenticated user to potentially enable denial of service via local access.

 CVE-2024-31157:
 Improper initialization in UEFI firmware OutOfBandXML module in some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

 CVE-2024-31068:
 Improper Finite State Machines (FSMs) in Hardware Logic for some Intel(R) Processors may allow privileged user to potentially enable denial of service via local access.

 CVE-2024-29214:
 Improper input validation in UEFI firmware CseVariableStorageSmm for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

 CVE-2024-28127:
 Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

 CVE-2024-28047:
 Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable information disclosure via local access.

 CVE-2024-24582:
 Improper input validation in XmlCli feature for UEFI firmware for some Intel(R) processors may allow privileged user to potentially enable escalation of privilege via local access.

 CVE-2023-43758:
 Improper input validation in UEFI firmware for some Intel(R) processors may allow a privileged user to potentially enable escalation of privilege via local access.

 CVE-2023-34440:
 Improper input validation in UEFI firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

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

Solution

Update the affected packages.

See Also

https://mirrors.tencent.com/tlinux/errata/tssa-20250227.xml

Plugin Details

Severity: High

ID: 276024

File Name: tencentos_TSSA_2025_0227.nasl

Version: 1.1

Type: local

Published: 11/20/2025

Updated: 11/20/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2023-43758

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 5.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

CVSS Score Source: CVE-2024-29214

Vulnerability Information

CPE: p-cpe:/a:tencent:tencentos_server:microcode_ctl, cpe:/o:tencent:tencentos_server:4

Required KB Items: Host/local_checks_enabled, Host/etc/os-release, Host/TencentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 3/22/2025

Vulnerability Publication Date: 2/12/2025

Reference Information

CVE: CVE-2023-34440, CVE-2023-43758, CVE-2024-24582, CVE-2024-28047, CVE-2024-28127, CVE-2024-29214, CVE-2024-31068, CVE-2024-31157, CVE-2024-36293, CVE-2024-37020, CVE-2024-39279, CVE-2024-39355