Detections
Analytics

TencentOS Server 4: microcode_ctl (TSSA-2025:0368)

medium Nessus Plugin ID 275973

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-2025:0368 advisory.

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

 CVE-2025-24495:
 Incorrect initialization of resource in the branch prediction unit for some Intel(R) Core Ultra Processors may allow an authenticated user to potentially enable information disclosure via local access.

 CVE-2025-20623:
 Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel(R) Core processors (10th Generation) may allow an authenticated user to potentially enable information disclosure via local access.

 CVE-2025-20103:
 Insufficient resource pool in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access.

 CVE-2025-20054:
 Uncaught exception in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access.

 CVE-2025-20012:
 Incorrect behavior order for some Intel(R) Core Ultra Processors may allow an unauthenticated user to potentially enable information disclosure via physical access.

 CVE-2024-45332:
 Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution in the indirect branch predictors for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

 CVE-2024-43420:
 Exposure of sensitive information caused by shared microarchitectural predictor state that influences transient execution for some Intel Atom(R) processors may allow an authenticated user to potentially enable information disclosure via local access.

 CVE-2024-28956:
 Exposure of Sensitive Information in Shared Microarchitectural Structures during Transient Execution for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure 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-20250368.xml

Plugin Details

Severity: Medium

ID: 275973

File Name: tencentos_TSSA_2025_0368.nasl

Version: 1.1

Type: local

Published: 11/20/2025

Updated: 11/20/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-20012

CVSS v3

Risk Factor: Medium

Base Score: 5.6

Temporal Score: 4.9

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

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

CVSS Score Source: CVE-2025-24495

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 3.3

Threat Vector: CVSS:4.0/E:U

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

CVSS Score Source: CVE-2025-24495

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/cpu, Host/etc/os-release, Host/TencentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/3/2025

Vulnerability Publication Date: 5/13/2025

Reference Information

CVE: CVE-2024-28956, CVE-2024-43420, CVE-2024-45332, CVE-2025-20012, CVE-2025-20054, CVE-2025-20103, CVE-2025-20623, CVE-2025-24495