CVE-2017-0247

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

12/05/2017

Last modified:

20/04/2025

Description

A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

Base Score 3.x

7.50

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.0:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.1:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.2:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.3:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.0:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.1:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.2:::::::*
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.0:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.1:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.2:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.3:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.0:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.1:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.2:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.apiexplorer:1.0.0:::::asp.net::

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.0:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.1:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.2:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.0.3:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.0:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.1:::::::*
cpe:2.3:a:microsoft:asp.net_model_view_controller:1.1.2:::::::*
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.0:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.1:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.2:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.0.3:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.0:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.1:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.abstractions:1.1.2:::::asp.net::
cpe:2.3:a:microsoft:microsoft.aspnetcore.mvc.apiexplorer:1.0.0:::::asp.net::

CVE-2017-0247

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools