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CVE-2021-1721

Good to know:

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Date: February 25, 2021

.NET Core and Visual Studio Denial of Service Vulnerability

Language: C#

Severity Score

Related Resources (6)

https://github.com/dotnet/runtime/issues/48067
https://nvd.nist.gov/vuln/detail/CVE-2021-1721
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1721
https://access.redhat.com/security/cve/CVE-2021-1721
https://github.com/dotnet/announcements/issues/175
https://www.mend.io/vulnerability-database/CVE-2021-1721

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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Upgrade Version

Upgrade to version microsoft.netcore.app - 2.1.25;microsoft.netcore.app.host.linux-arm - 3.1.12;microsoft.netcore.app.host.linux-arm64 - 3.1.12;microsoft.netcore.app.host.linux-musl-arm64 - 3.1.12;microsoft.netcore.app.host.linux-musl-x64 - 3.1.12;microsoft.netcore.app.host.linux-x64 - 3.1.12;microsoft.netcore.app.host.osx-x64 - 3.1.12;microsoft.netcore.app.host.rhel.6-x64 - 3.1.12;microsoft.netcore.app.host.win-arm - 3.1.12;microsoft.netcore.app.host.win-arm64 - 3.1.12;microsoft.netcore.app.host.win-x64 - 3.1.12;microsoft.netcore.app.host.win-x86 - 3.1.12;microsoft.netcore.app.runtime.linux-arm - 3.1.12;microsoft.netcore.app.runtime.linux-arm - 5.0.3;microsoft.netcore.app.runtime.linux-arm64 - 3.1.12;microsoft.netcore.app.runtime.linux-arm64 - 5.0.3;microsoft.netcore.app.runtime.linux-musl-arm64 - 3.1.12;microsoft.netcore.app.runtime.linux-musl-arm64 - 5.0.3;microsoft.netcore.app.runtime.linux-musl-x64 - 3.1.12;microsoft.netcore.app.runtime.linux-musl-x64 - 5.0.3;microsoft.netcore.app.runtime.linux-x64 - 3.1.12;microsoft.netcore.app.runtime.linux-x64 - 5.0.3;microsoft.netcore.app.runtime.osx-x64 - 3.1.12;microsoft.netcore.app.runtime.osx-x64 - 5.0.3;microsoft.netcore.app.runtime.rhel.6-x64 - 3.1.12;microsoft.netcore.app.runtime.win-arm - 3.1.12;microsoft.netcore.app.runtime.win-arm - 5.0.3;microsoft.netcore.app.runtime.win-arm64 - 3.1.12;microsoft.netcore.app.runtime.win-arm64 - 5.0.3;microsoft.netcore.app.runtime.win-x64 - 3.1.12;microsoft.netcore.app.runtime.win-x64 - 5.0.3;microsoft.netcore.app.runtime.win-x86 - 3.1.12;microsoft.netcore.app.runtime.win-x86 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.aot.linux-arm64 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.aot.linux-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.aot.osx-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.linux-arm64 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.linux-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.llvm.osx-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.linux-arm - 5.0.3;microsoft.netcore.app.runtime.mono.linux-arm64 - 5.0.3;microsoft.netcore.app.runtime.mono.linux-musl-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.linux-x64 - 5.0.3;microsoft.netcore.app.runtime.mono.osx-x64 - 5.0.3;microsoft.netcore.app.runtime.android-arm - 5.0.3;microsoft.netcore.app.runtime.android-arm64 - 5.0.3;microsoft.netcore.app.runtime.android-x64 - 5.0.3;microsoft.netcore.app.runtime.android-x86 - 5.0.3;microsoft.netcore.app.runtime.browser-wasm - 5.0.3;microsoft.netcore.app.runtime.ios-arm - 5.0.3;microsoft.netcore.app.runtime.ios-x64 - 5.0.3;microsoft.netcore.app.runtime.ios-x86 - 5.0.3;microsoft.netcore.app.runtime.linux-musl-arm - 5.0.3;microsoft.netcore.app.runtime.tvos-arm64 - 5.0.3;microsoft.netcore.app.runtime.tvos-x64 - 5.0.3

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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