CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.6%
Python is prone to a denial of service (DoS) vulnerability in the
# SPDX-FileCopyrightText: 2021 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:python:python";
if(description)
{
script_oid("1.3.6.1.4.1.25623.1.0.118242");
script_version("2023-07-05T05:06:18+0000");
script_tag(name:"last_modification", value:"2023-07-05 05:06:18 +0000 (Wed, 05 Jul 2023)");
script_tag(name:"creation_date", value:"2021-10-04 12:04:36 +0200 (Mon, 04 Oct 2021)");
script_tag(name:"cvss_base", value:"5.0");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2020-10-29 15:15:00 +0000 (Thu, 29 Oct 2020)");
script_cve_id("CVE-2018-20406");
script_tag(name:"qod_type", value:"remote_banner_unreliable");
script_tag(name:"solution_type", value:"VendorFix");
script_name("Python 3.4.x < 3.4.10, 3.5.x < 3.5.7, 3.6.x < 3.6.7, 3.7.x < 3.7.1 Python Issue (bpo-34656) - Linux");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 Greenbone AG");
script_family("Denial of Service");
script_dependencies("gb_python_consolidation.nasl", "os_detection.nasl");
script_mandatory_keys("python/detected", "Host/runs_unixoide");
script_tag(name:"summary", value:"Python is prone to a denial of service (DoS) vulnerability in the
'pickle.load()' function.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
script_tag(name:"insight", value:"'Modules/_pickle.c' has an integer overflow via a large
'LONG_BINPUT' value that is mishandled during a 'resize to twice the size' attempt.");
script_tag(name:"impact", value:"This issue might cause memory exhaustion, but is only relevant
if the pickle format is used for serializing tens or hundreds of gigabytes of data.");
script_tag(name:"affected", value:"Python version 3.4.0 through 3.4.9, 3.5.0 through 3.5.6, 3.6.0
through 3.6.6 and 3.7.x before 3.7.1.");
script_tag(name:"solution", value:"Update to version 3.4.10, 3.5.7, 3.6.7, 3.7.1 or later.");
script_xref(name:"URL", value:"https://python-security.readthedocs.io/vuln/pickle-load-dos.html");
script_xref(name:"Advisory-ID", value:"bpo-34656");
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, version_regex:"^[0-9]+\.[0-9]+\.[0-9]+" ) )
exit( 0 );
version = infos["version"];
location = infos["location"];
if( version_in_range( version:version, test_version:"3.4", test_version2:"3.4.9" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.4.10", install_path:location );
security_message( port:port, data:report );
exit( 0 );
}
if( version_in_range( version:version, test_version:"3.5", test_version2:"3.5.6" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.5.7", install_path:location );
security_message( port:port, data:report );
exit( 0 );
}
if( version_in_range( version:version, test_version:"3.6", test_version2:"3.6.6" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.6.7", install_path:location );
security_message( port:port, data:report );
exit( 0 );
}
if( version_is_greater_equal( version:version, test_version:"3.7.0" ) &&
version_is_less( version:version, test_version:"3.7.1" ) ) {
report = report_fixed_ver( installed_version:version, fixed_version:"3.7.1", install_path:location );
security_message( port:port, data:report );
exit( 0 );
}
exit( 99 );
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
79.6%