Debian dsa-6084 : libc-ares-dev - security update

medium Nessus Plugin ID 279112

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6084 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6084-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso December 18, 2025 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : c-ares CVE ID : CVE-2025-62408

It was discovered that c-ares, a library that performs DNS requests and name resolution asynchronously, does not properly handle termination of queries which may result in denial of service.

For the stable distribution (trixie), this problem has been fixed in version 1.34.5-1+deb13u1.

We recommend that you upgrade your c-ares packages.

For the detailed security status of c-ares please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/c-ares

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

Tenable has extracted the preceding description block directly from the Debian 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

Upgrade the libc-ares-dev packages.

Plugin Details

Severity: Medium

ID: 279112

File Name: debian_DSA-6084.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/18/2025

Updated: 12/18/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2025-62408

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libc-ares-dev, p-cpe:/a:debian:debian_linux:libc-ares2, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:libcares2

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/18/2025

Vulnerability Publication Date: 12/8/2025

Reference Information

CVE: CVE-2025-62408

Detections

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