OpenSSL is prone to a denial of service (DoS) vulnerability.
# Copyright (C) 2021 Greenbone Networks GmbH
# 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-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
CPE = "cpe:/a:openssl:openssl";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.117578");
script_version("2021-07-30T07:03:45+0000");
script_tag(name:"last_modification", value:"2021-07-30 07:03:45 +0000 (Fri, 30 Jul 2021)");
script_tag(name:"creation_date", value:"2021-07-19 12:38:23 +0000 (Mon, 19 Jul 2021)");
script_tag(name:"cvss_base", value:"6.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_cve_id("CVE-2014-3509");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("OpenSSL DoS Vulnerability (20140806) - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone Networks GmbH");
script_family("Denial of Service");
script_dependencies("gb_openssl_consolidation.nasl", "os_detection.nasl");
script_mandatory_keys("openssl/detected", "Host/runs_unixoide");
script_tag(name:"summary", value:"OpenSSL 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:"A race condition was found in ssl_parse_serverhello_tlsext. If a
multithreaded client connects to a malicious server using a resumed session and the server sends
an ec point format extension, it could write up to 255 bytes to freed memory.");
script_tag(name:"affected", value:"OpenSSL version 1.0.0 through 1.0.0m and 1.0.1 through 1.0.1h.");
script_tag(name:"solution", value:"Update to version 1.0.0n, 1.0.1i or later.");
script_xref(name:"URL", value:"https://www.openssl.org/news/secadv/20140806.txt");
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_in_range(version: version, test_version: "1.0.0", test_version2: "1.0.0m")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.0.0n", install_path: location);
security_message(port: port, data: report);
exit(0);
}
if (version_in_range(version: version, test_version: "1.0.1", test_version2: "1.0.1h")) {
report = report_fixed_ver(installed_version: version, fixed_version: "1.0.1i", install_path: location);
security_message(port: port, data: report);
exit(0);
}
exit(99);