.Net Framework and .Net Core Denial of Service Vulnerability
CVE-2019-0980
Security Vulnerability
Released: May 14, 2019
Last updated: Mar 25, 2020
- Assigning CNA
- Microsoft
- CVE.org link
- CVE-2019-0980
Executive Summary
A denial of service vulnerability exists when .NET Framework or .NET Core improperly handle web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Framework or .NET Core web application. The vulnerability can be exploited remotely, without authentication.
A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Framework or .NET Core application.
The update addresses the vulnerability by correcting how .NET Framework or .NET Core web applications handles web requests.
Exploitability
The following table provides an exploitability assessment for this vulnerability at the time of original publication.
- Publicly disclosed
- No
- Exploited
- No
- Exploitability assessment
- Exploitation Less Likely
Acknowledgements
- Nemanja Mijailovic Nemanja Mijailovic's Blog
Security Updates
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle.
Release date Descending
Product
Platform
Impact
Max Severity
Article
Download
Build Number
May 14, 2019
Microsoft .NET Framework 4.8
Windows Server 2019
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1809 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1809 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1803 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1803 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1703 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.8
Windows 10 Version 1703 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7/4.7.1/4.7.2
Windows 10 Version 1703 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7.1/4.7.2
Windows 10 Version 1709 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7/4.7.1/4.7.2
Windows 10 Version 1703 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7.1/4.7.2
Windows 10 Version 1709 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 10 Version 1607 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows Server 2012 R2 (Server Core installation)
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows 10 Version 1607 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
Windows Server 2016
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2012 R2 (Server Core installation)
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2012 (Server Core installation)
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows RT 8.1
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows 7 for 32-bit Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows 7 for x64-based Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2
Windows 8.1 for 32-bit systems
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.7.2
Windows 10 Version 1809 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7.2
Windows 10 Version 1809 for x64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7.2
Windows 10 Version 1803 for ARM64-based Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.7.2
Windows 10 Version 1803 for 32-bit Systems
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2012 R2
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2012
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2008 for x64-based Systems Service Pack 2
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows Server 2008 for 32-bit Systems Service Pack 2
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows 7 for x64-based Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows RT 8.1
Denial of Service
Important
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows 8.1 for x64-based systems
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows 8.1 for 32-bit systems
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 4.5.2
Windows 7 for 32-bit Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 3.5.1
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Denial of Service
Important
- -
- -
May 14, 2019
Microsoft .NET Framework 3.5.1
Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1
Denial of Service
Important
- -
- -
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Revisions
version
revisionDate
description
2.1
Mar 25, 2020
The following revisions have been made in the Security Updates table: 1. Removed updates for .NET Framework installed on Windows 10 Version 1809 for ARM64-based Systems because .NET Framework is not supported on this architecture. 2. Corrected the Download to "Security Update" for all versions of Windows 10 version 1809. Customers who have successfully installed the updates for .NET Framework installed on Windows 10 version 1809 do not need to take any further action.
2.0
May 21, 2019
Revised the Security Updates table to include PowerShell Core 6.1 and 6.2 because they are affected by CVE-2019-0980. See https://github.com/PowerShell/Announcements/issues/16 for more information.
1.0
May 14, 2019
Information published.
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