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FreeBSD : www/varnish7 -- client-side desync vulnerability (26f6733d-06a9-11f0-ba0b-641c67a117d8)

medium Nessus Plugin ID 233280

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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 26f6733d-06a9-11f0-ba0b-641c67a117d8 advisory.

 The Varnish Development Team reports:
 A client-side desync vulnerability can be triggered in Varnish Cache and Varnish Enterprise. This vulnerability can be triggered under specific circumstances involving malformed HTTP/1 requests.

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

https://varnish-cache.org/security/VSV00015.html#vsv00015

http://www.nessus.org/u?32c6f959

Plugin Details

Severity: Medium

ID: 233280

File Name: freebsd_pkg_26f6733d06a911f0ba0b641c67a117d8.nasl

Version: 1.1

Type: local

Published: 3/23/2025

Updated: 3/23/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2025-30346

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

CPE: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:varnish7

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/22/2025

Vulnerability Publication Date: 3/21/2025

Reference Information

CVE: CVE-2025-30346