CVE-2019-0564

Core: Kestrel - WebSocket DoS via CancellationToken (CoreFX and ASP.NET)

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A denial of service vulnerability exists when ASP.NET Core improperly handles web requests, aka "ASP.NET Core Denial of Service Vulnerability." This affects ASP.NET Core 2.1. This CVE ID is unique from CVE-2019-0548.

Existe una vulnerabilidad de denegación de servicio (DoS) cuando ASP.NET Core gestiona de manera indebida peticiones web. Esta vulnerabilidad también se conoce como "ASP.NET Core Denial of Service Vulnerability". Esto afecta a ASP.NET Core 2.1. El ID de este CVE es diferente de CVE-2019-0548.

.NET Core is a managed software framework. It implements a subset of the .NET framework APIs and several new APIs, and it includes a CLR implementation. New versions of .NET Core that address security vulnerabilities are now available. The updated versions are .NET Core 2.1.5 and 2.2.1. Issues addressed include a denial of service vulnerability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-11-26 CVE Reserved
2019-01-08 CVE Published
2024-08-04 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-19: Data Processing Errors
CWE-400: Uncontrolled Resource Consumption

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/106413	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0564	2019-01-11

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:0040	2019-01-11
https://access.redhat.com/security/cve/CVE-2019-0564	2019-01-09
https://bugzilla.redhat.com/show_bug.cgi?id=1660634	2019-01-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Microsoft Search vendor "Microsoft"		Asp.net Core Search vendor "Microsoft" for product "Asp.net Core"				2.1 Search vendor "Microsoft" for product "Asp.net Core" and version "2.1"		-		Affected