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FreeBSD : ISC KEA -- kea-dhcp4 aborts if client sends a broadcast request with particular options (f727fe60-8389-11f0-8438-001b217e4ee5)

high Nessus Plugin ID 258123

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the f727fe60-8389-11f0-8438-001b217e4ee5 advisory.

 Internet Systems Consortium, Inc. reports:
 We corrected an issue in `kea-dhcp4` that caused the server to abort if a client sent a broadcast request with particular options, and Kea failed to find an appropriate subnet for that client.
 This addresses CVE-2025-40779 [#4055, #4048].

Tenable has extracted the preceding description block directly from the FreeBSD 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

http://www.nessus.org/u?94969f89

Plugin Details

Severity: High

ID: 258123

File Name: freebsd_pkg_f727fe60838911f08438001b217e4ee5.nasl

Version: 1.1

Type: local

Published: 8/29/2025

Updated: 8/29/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-40779

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/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:freebsd:freebsd:kea-devel, p-cpe:/a:freebsd:freebsd:kea, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 8/27/2025

Vulnerability Publication Date: 8/27/2025

Reference Information

CVE: CVE-2025-40779