Sendmail < 8.13.8 Header Processing Overflow DoS

#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(17724);
  script_version("1.8");
  script_cvs_date("Date: 2018/09/17 21:46:53");

  script_cve_id("CVE-2006-4434");
  script_bugtraq_id(19714);

  script_name(english:"Sendmail < 8.13.8 Header Processing Overflow DoS");
  script_summary(english:"Checks the version of Sendmail.");

  script_set_attribute(attribute:"synopsis", value:
"The remote mail server is susceptible to a denial of service
attack.");
  script_set_attribute(attribute:"description", value:
"The remote mail server is running a version of Sendmail earlier than
8.13.8. Such versions are reportedly affected by a use-after-free flaw
that may allow an attacker to crash the server.");
  script_set_attribute(attribute:"see_also", value:"http://www.sendmail.org/releases/8.13.8.php");
  script_set_attribute(attribute:"solution", value:"Upgrade to Sendmail 8.13.8 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2006-4434");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2006/08/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2006/08/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/11/18");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:sendmail:sendmail");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SMTP problems");

  script_dependencies("sendmail_detect.nbin");
  script_require_keys("installed_sw/Sendmail");
  exit(0);
}

include("vcf.inc");

app_info = vcf::get_app_info(app:"Sendmail");

constraints = [{ "fixed_version" : "8.13.8" }];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);