FreeBSD : squid -- remote DoS in HTTP response processing (660ebbf5-daeb-11e5-b2bd-002590263bf5)

high Nessus Plugin ID 88944
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


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


Squid security advisory 2016:2 reports :

Due to incorrect bounds checking Squid is vulnerable to a denial of service attack when processing HTTP responses.

These problems allow remote servers delivering certain unusual HTTP response syntax to trigger a denial of service for all clients accessing the Squid service.

HTTP responses containing malformed headers that trigger this issue are becoming common. We are not certain at this time if that is a sign of malware or just broken server scripting.


Update the affected package.

See Also

Plugin Details

Severity: High

ID: 88944

File Name: freebsd_pkg_660ebbf5daeb11e5b2bd002590263bf5.nasl

Version: 2.7

Type: local

Published: 2/25/2016

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P


Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

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

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

Patch Publication Date: 2/24/2016

Vulnerability Publication Date: 2/24/2016

Reference Information

CVE: CVE-2016-2569, CVE-2016-2570, CVE-2016-2571