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openSUSE 16 Security Update : c-ares (openSUSE-SU-2026:20698-1)

medium Nessus Plugin ID 313692

Synopsis

The remote openSUSE host is missing a security update.

Description

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20698-1 advisory.

 This update for c-ares fixes the following issue

 - CVE-2025-62408: use after free in read_answers() (bsc#1254738).

 Changes for c-ares:

 - c-ares 1.35.6:
 * Ignore Windows IDN Search Domains until proper IDN support is added
 * Various bug fixes

Tenable has extracted the preceding description block directly from the SUSE 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 c-ares-devel, c-ares-utils and / or libcares2 packages.

See Also

https://bugzilla.suse.com/1254738

https://www.suse.com/security/cve/CVE-2025-62408

Plugin Details

Severity: Medium

ID: 313692

File Name: openSUSE-2026-20698-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 5/10/2026

Updated: 5/10/2026

Supported Sensors: Continuous Assessment, Nessus Agent, 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:novell:opensuse:c-ares-devel, cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:libcares2, p-cpe:/a:novell:opensuse:c-ares-utils

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 5/7/2026

Vulnerability Publication Date: 12/8/2025

Reference Information

CVE: CVE-2025-62408