CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
50.2%
Xpdf is prone to multiple denial of service (DoS)
vulnerabilities.
# Copyright (C) 2020 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.
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.113752");
script_version("2021-09-09T07:27:17+0000");
script_tag(name:"last_modification", value:"2021-09-09 07:27:17 +0000 (Thu, 09 Sep 2021)");
script_tag(name:"creation_date", value:"2020-09-08 08:03:57 +0000 (Tue, 08 Sep 2020)");
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_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-09-11 17:25:00 +0000 (Fri, 11 Sep 2020)");
script_tag(name:"qod_type", value:"executable_version_unreliable");
script_tag(name:"solution_type", value:"WillNotFix");
script_cve_id("CVE-2020-24996", "CVE-2020-24999");
script_name("Xpdf <= 4.02 Multiple DoS Vulnerabilities");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
script_family("Denial of Service");
script_dependencies("secpod_xpdf_detect.nasl");
script_mandatory_keys("Xpdf/Linux/Ver");
script_tag(name:"summary", value:"Xpdf is prone to multiple denial of service (DoS)
vulnerabilities.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"The following vulnerabilities exist:
- CVE-2020-24996: Denial of service (DoS) in the pdftohtml binary because of an invalid memory
access in the function TextString::~TextString() located in Catalog.cc.
- CVE-2020-24999: Denial of service (DoS) in the pdftohtml binary because of an invalid memory
access in the function fprintf located in Error.cc.");
script_tag(name:"impact", value:"Successful exploitation would allow an attacker to crash the
application.");
script_tag(name:"affected", value:"Xpdf through version 4.02.");
script_tag(name:"solution", value:"No known solution was made available for at least one year since
the disclosure of this vulnerability. Likely none will be provided anymore. General solution options
are to upgrade to a newer release, disable respective features, remove the product or replace the
product by another one.");
script_xref(name:"URL", value:"https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028");
script_xref(name:"URL", value:"https://forum.xpdfreader.com/viewtopic.php?f=3&t=42029");
exit(0);
}
CPE = "cpe:/a:foolabs:xpdf";
include( "host_details.inc" );
include( "version_func.inc" );
if( ! infos = get_app_version_and_location( cpe: CPE, exit_no_version: TRUE ) )
exit( 0 );
version = infos["version"];
location = infos["location"];
if( version_is_less_equal( version: version, test_version: "4.02" ) ) {
report = report_fixed_ver( installed_version: version, fixed_version: "None Available", install_path: location );
security_message( data: report, port: 0 );
exit( 0 );
}
exit( 99 );
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
50.2%