Detections
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TencentOS Server 4: linux-firmware (TSSA-2024:0602)

medium Nessus Plugin ID 239421

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-2024:0602 advisory.

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

 CVE-2023-20577:
 A vulnerability was found in AMD hardware due to a heap overflow in the SMM module. This issue could allow a local unauthenticated attacker to enable writing to SPI flash to execute arbitrary code.

 CVE-2023-20576:
 A vulnerability was found in AMD hardware due to insufficient verification of data authenticity in AGESA.
 This issue may allow a local unauthenticated attacker to update SPI ROM data, potentially resulting in denial of service or privilege escalation.

 CVE-2023-20579:
 Improper Access Control in the AMD SPI protection feature may allow a user with Ring0 (kernel mode) privileged access to bypass protections potentially resulting in loss of integrity and availability.

 CVE-2023-20587:
 Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code execution.

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-20240602.xml

Plugin Details

Severity: Medium

ID: 239421

File Name: tencentos_TSSA_2024_0602.nasl

Version: 1.2

Type: local

Published: 6/16/2025

Updated: 11/20/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.4

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

CVSS Score Source: CVE-2023-20579

CVSS v3

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.2

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

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

Vulnerability Information

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

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: 10/23/2024

Vulnerability Publication Date: 10/23/2024

Reference Information

CVE: CVE-2023-20576, CVE-2023-20577, CVE-2023-20579, CVE-2023-20587