TencentOS Server 3: c-ares (TSSA-2022:0198)

high Nessus Plugin ID 238551

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 a vulnerability as referenced in the TSSA-2022:0198 advisory.

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

CVE-2021-3672:
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.

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

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 packages.

See Also

https://mirrors.tencent.com/tlinux/errata/tssa-20220198.xml

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3672

Plugin Details

Severity: High

ID: 238551

File Name: tencentos_TSSA_2022_0198.nasl

Version: 1.1

Type: local

Published: 6/16/2025

Updated: 6/16/2025

Supported Sensors: Nessus

Vulnerability Information

CPE: cpe:/o:tencent:tencentos_server:3, p-cpe:/a:tencent:tencentos_server:c-ares

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: 12/2/2022

Vulnerability Publication Date: 12/2/2022