High severity7.5NVD Advisory· Published Jan 8, 2019· Updated Jun 17, 2026
CVE-2019-0564
CVE-2019-0564
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
Microsoft.AspNetCore.WebSocketsNuGet | >= 2.2.0, < 2.2.1 | 2.2.1 |
Microsoft.AspNetCore.WebSocketsNuGet | >= 2.1.0, < 2.1.7 | 2.1.7 |
Microsoft.AspNetCore.Server.Kestrel.CoreNuGet | >= 2.1.0, < 2.1.7 | 2.1.7 |
System.Net.WebSockets.WebSocketProtocolNuGet | >= 4.5.0, < 4.5.3 | 4.5.3 |
Microsoft.NETCore.AppNuGet | >= 2.2.0, < 2.2.1 | 2.2.1 |
Microsoft.NETCore.AppNuGet | >= 2.1.0, < 2.1.7 | 2.1.7 |
Microsoft.AspNetCore.AppNuGet | >= 2.2.0, < 2.2.1 | 2.2.1 |
Microsoft.AspNetCore.AppNuGet | >= 2.1.0, < 2.1.7 | 2.1.7 |
Microsoft.AspNetCore.AllNuGet | >= 2.2.0, < 2.2.1 | 2.2.1 |
Microsoft.AspNetCore.AllNuGet | >= 2.1.0, < 2.1.7 | 2.1.7 |
Affected products
8- cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*
- ghsa-coords6 versionspkg:nuget/microsoft.aspnetcore.allpkg:nuget/microsoft.aspnetcore.apppkg:nuget/microsoft.aspnetcore.server.kestrel.corepkg:nuget/microsoft.aspnetcore.websocketspkg:nuget/microsoft.netcore.apppkg:nuget/system.net.websockets.websocketprotocol
>= 2.2.0, < 2.2.1+ 5 more
- (no CPE)range: >= 2.2.0, < 2.2.1
- (no CPE)range: >= 2.2.0, < 2.2.1
- (no CPE)range: >= 2.1.0, < 2.1.7
- (no CPE)range: >= 2.2.0, < 2.2.1
- (no CPE)range: >= 2.2.0, < 2.2.1
- (no CPE)range: >= 4.5.0, < 4.5.3
Patches
Vulnerability mechanics
References
7- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0564nvdPatchVendor AdvisoryWEB
- www.securityfocus.com/bid/106413nvdThird Party AdvisoryVDB EntryWEB
- access.redhat.com/errata/RHSA-2019:0040nvdThird Party AdvisoryWEB
- github.com/advisories/GHSA-6px8-22w5-w334ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2019-0564ghsaADVISORY
- github.com/aspnet/Announcements/issues/334ghsaWEB
- github.com/github/advisory-database/issues/302ghsaWEB
News mentions
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