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FreeBSD : varnish -- Denial of Service Vulnerability (c3610f39-18f1-11ed-9854-641c67a117d8)

high Nessus Plugin ID 164048

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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 c3610f39-18f1-11ed-9854-641c67a117d8 advisory.

 - Varnish Cache Project reports: A denial of service attack can be performed against Varnish Cache servers by specially formatting the reason phrase of the backend response status line. In order to execute an attack, the attacker would have to be able to influence the HTTP/1 responses that the Varnish Server receives from its configured backends. A successful attack would cause the Varnish Server to assert and automatically restart. (c3610f39-18f1-11ed-9854-641c67a117d8)

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/VSV00009.html

http://www.nessus.org/u?7aca9fab

Plugin Details

Severity: High

ID: 164048

File Name: freebsd_pkg_c3610f3918f111ed9854641c67a117d8.nasl

Version: 1.2

Type: local

Published: 8/11/2022

Updated: 8/11/2022

Supported Sensors: Nessus

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:varnish7, 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: 8/10/2022

Vulnerability Publication Date: 8/9/2022