TencentOS Server 3: avahi (TSSA-2023:0322)

high Nessus Plugin ID 239643

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-2023:0322 advisory.

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

CVE-2021-3468:
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from this vulnerability is to the availability of the avahi service, which becomes unresponsive after this flaw is triggered.

CVE-2023-38469:
A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record.

CVE-2023-38470:
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function.

CVE-2023-38471:
A vulnerability was found in Avahi. A reachable assertion exists in the dbus_set_host_name function.

CVE-2023-38472:
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_rdata_parse() function.

CVE-2023-38473:
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_alternative_host_name() function.

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.

Plugin Details

Severity: High

ID: 239643

File Name: tencentos_TSSA_2023_0322.nasl

Version: 1.1

Type: local

Family: Tencent Local Security Checks

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:avahi

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: 1/19/2024

Vulnerability Publication Date: 1/19/2024

Detections

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