ClamAV <= 0.101.4, 0.102.0 DoS Vulnerability - Windows

# SPDX-FileCopyrightText: 2020 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

CPE = "cpe:/a:clamav:clamav";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.113624");
  script_version("2025-07-03T05:42:54+0000");
  script_tag(name:"last_modification", value:"2025-07-03 05:42:54 +0000 (Thu, 03 Jul 2025)");
  script_tag(name:"creation_date", value:"2020-01-20 11:14:38 +0000 (Mon, 20 Jan 2020)");
  script_tag(name:"cvss_base", value:"7.1");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-03-19 23:15:00 +0000 (Thu, 19 Mar 2020)");

  script_cve_id("CVE-2019-15961");

  script_tag(name:"qod_type", value:"remote_banner");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("ClamAV <= 0.101.4, 0.102.0 DoS Vulnerability - Windows");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Denial of Service");
  script_dependencies("gb_clamav_consolidation.nasl", "os_detection.nasl");
  script_mandatory_keys("clamav/detected", "Host/runs_windows");

  script_tag(name:"summary", value:"ClamAV is prone to a denial of service (DoS) vulnerability.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"The vulnerability is due to inefficient MIME parsing routines
  that result in extremely long scan times of specially formatted email files. An attacker could
  exploit this vulnerability by sending a crafted email file to an affected device.");

  script_tag(name:"impact", value:"Successful exploitation would allow an attacker to cause the
  ClamAV scanning process to scan the crafted email file indefinitely, resulting in a denial of
  service.");

  script_tag(name:"affected", value:"ClamAV version 0.101.4 and prior and 0.102.0 only.");

  script_tag(name:"solution", value:"Update to version 0.101.5, 0.102.1 or later.");

  script_xref(name:"URL", value:"https://bugzilla.clamav.net/show_bug.cgi?id=12380");
  script_xref(name:"URL", value:"https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010");

  exit(0);
}

include("host_details.inc");
include("version_func.inc");

if (isnull(port = get_app_port(cpe: CPE)))
  exit(0);

if (!infos = get_app_version_and_location(cpe: CPE, port: port, exit_no_version: TRUE))
  exit(0);

version = infos["version"];
location = infos["location"];

if (version_is_less(version: version, test_version: "0.101.5")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "0.101.5", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

if (version_is_equal(version: version, test_version: "0.102.0")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "0.102.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);