CVE-2021-1723
published 2021-01-12CVE-2021-1723: ASP.NET Core and Visual Studio Denial of Service Vulnerability
PriorityP335high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
4.91%
91.1th percentile
ASP.NET Core and Visual Studio Denial of Service Vulnerability
Affected
36 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| microsoft | asp.net_core | 3.1 – 3.1.10 | — |
| microsoft | asp.net_core | 5.0 – 5.0.1 | — |
| microsoft | asp.net_core_3.1 | >= 3.0 < publication | publication |
| microsoft | asp.net_core_5.0 | >= 5.0 < publication | publication |
| microsoft | microsoft.aspnetcore.app.runtime.linux-arm | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-arm | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-arm64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-arm64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-musl-arm | >= 5.0.1 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-musl-arm64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-musl-arm64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-musl-x64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-musl-x64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-x64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.linux-x64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.osx-x64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.osx-x64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.win-arm | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.win-arm | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.win-arm64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.win-arm64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
| microsoft | microsoft.aspnetcore.app.runtime.win-x64 | >= 3.1.0 < 3.1.11 | 3.1.11 |
| microsoft | microsoft.aspnetcore.app.runtime.win-x64 | >= 5.0.0 < 5.0.2 | 5.0.2 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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OSV
ASP.NET Core and Visual Studio Denial of Service Vulnerability
osv·2022-05-24
CVE-2021-1723 [HIGH] ASP.NET Core and Visual Studio Denial of Service Vulnerability
ASP.NET Core and Visual Studio Denial of Service Vulnerability
A denial-of-service vulnerability exists in the way Kestrel parses HTTP/2 requests. The security update addresses the vulnerability by fixing the way the Kestrel parses HTTP/2 requests. Users are advised to upgrade.
GHSA
ASP.NET Core and Visual Studio Denial of Service Vulnerability
ghsa·2022-05-24
CVE-2021-1723 [HIGH] ASP.NET Core and Visual Studio Denial of Service Vulnerability
ASP.NET Core and Visual Studio Denial of Service Vulnerability
A denial-of-service vulnerability exists in the way Kestrel parses HTTP/2 requests. The security update addresses the vulnerability by fixing the way the Kestrel parses HTTP/2 requests. Users are advised to upgrade.
Microsoft
ASP.NET Core and Visual Studio Denial of Service Vulnerability
vendor_msrc·2021-01-12·CVSS 7.5
CVE-2021-1723 [HIGH] ASP.NET Core and Visual Studio Denial of Service Vulnerability
ASP.NET Core and Visual Studio Denial of Service Vulnerability
ASP.NET core & .NET core: ASP.NET core & .NET core
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Denial of Service
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Remediation: Release Notes
Reference: https://dotnet.microsoft.com/download/dotnet-core/3.1
Reference: https://dotnet.microsoft.com/download/dotnet/5.0
Reference: https://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.4
Reference: http://aka.ms/vs/16/release/latest
Reference: https://my.visualstudio.com/Downloads?q=Visual Studio 2019 version 16.7
Red Hat
dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2
vendor_redhat·2021-01-12·CVSS 7.5
CVE-2021-1723 [HIGH] CWE-833 dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2
dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2
ASP.NET Core and Visual Studio Denial of Service Vulnerability
A flaw was found in dotnet. Running callbacks outside of locks results in Krestel deadlock using HTTP2. The highest threat from this vulnerability is to system availability.
Package: rh-dotnet21 (.NET Core 2.1 on Red Hat Enterprise Linux) - Not affected
Package: dotnet (Red Hat Enterprise Linux 8) - Not affected
Package: dotnet3.1 (Red Hat Enterprise Linux 9) - Not affected
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-01-12
Published