This script is Copyright (C) 2007-2015 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
Squid advisory 2007:1 notes :
Due to an internal error Squid-2.6 is vulnerable to a denial of
service attack when processing the TRACE request method.
To work around the problem deny access to using the TRACE method by
inserting the following two lines before your first http_access rule.
acl TRACE method TRACE
http_access deny TRACE
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 5.0