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Denial of service in .NET core

Moderate severity GitHub Reviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 30, 2023

Package

nuget Microsoft.NETCore.App (NuGet)

Affected versions

>= 2.1.0, < 2.1.25

Patched versions

2.1.25
nuget Microsoft.NETCore.App.Host.linux-arm (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.linux-arm64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.linux-musl-arm64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.linux-musl-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.linux-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.osx-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.rhel.6-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.win-arm (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.win-arm64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.win-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Host.win-x86 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.linux-arm (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.linux-arm64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.linux-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.Mono.osx-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.android-arm (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.android-arm64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.android-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.android-x86 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.browser-wasm (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.ios-arm (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.ios-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.ios-x86 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-arm (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-arm64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-musl-arm (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-musl-arm64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-musl-x64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.linux-x64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.osx-x64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.rhel.6-x64 (NuGet)
>= 3.1.0, < 3.1.12
3.1.12
nuget Microsoft.NETCore.App.Runtime.tvos-arm64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.tvos-x64 (NuGet)
>= 5.0.0, < 5.0.3
5.0.3
nuget Microsoft.NETCore.App.Runtime.win-arm (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.win-arm64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.win-x64 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3
nuget Microsoft.NETCore.App.Runtime.win-x86 (NuGet)
>= 3.1.0, < 3.1.12
>= 5.0.0, < 5.0.3
3.1.12
5.0.3

Description

.NET Core and Visual Studio Denial of Service Vulnerability due to a vulnerability which exists when creating HTTPS web request during X509 certificate chain building.

References

Published by the National Vulnerability Database Feb 25, 2021
Published to the GitHub Advisory Database May 24, 2022
Reviewed Nov 1, 2022
Last updated Jan 30, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS score

0.290%
(70th percentile)

Weaknesses

No CWEs

CVE ID

CVE-2021-1721

GHSA ID

GHSA-3gp9-h8hw-pxpw

Source code

No known source code
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