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TencentOS Server 3: ruby:2.5 (TSSA-2023:0312)

high Nessus Plugin ID 276331

Synopsis

The remote TencentOS Server 3 host is missing one or more security updates.

Description

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0312 advisory.

 Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

 CVE-2021-33621:
 The cgi gem before 0.1.0.2, 0.2.x before 0.2.2, and 0.3.x before 0.3.5 for Ruby allows HTTP response splitting. This is relevant to applications that use untrusted user input either to generate an HTTP response or to create a CGI::Cookie object.

 CVE-2022-28739:
 There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including Kernel#Float and String#to_f.

 CVE-2023-28755:
 A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.

 CVE-2023-28756:
 A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.

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-20230312.xml

Plugin Details

Severity: High

ID: 276331

File Name: tencentos_TSSA_2023_0312.nasl

Version: 1.2

Type: local

Published: 11/20/2025

Updated: 12/5/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2022-28739

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2021-33621

Vulnerability Information

CPE: p-cpe:/a:tencent:tencentos_server:rubygem-mysql2, cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:rubygem-mongo, p-cpe:/a:tencent:tencentos_server:rubygem-bson, p-cpe:/a:tencent:tencentos_server:ruby, p-cpe:/a:tencent:tencentos_server:rubygem-pg, p-cpe:/a:tencent:tencentos_server:rubygem-bundler, p-cpe:/a:tencent:tencentos_server:rubygem-abrt

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/19/2024

Vulnerability Publication Date: 4/13/2022

Reference Information

CVE: CVE-2021-33621, CVE-2022-28739, CVE-2023-28755, CVE-2023-28756