Vulnerabilities in pkg:nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64

PACKAGE
Advisory Identifier: GHSA-g5vf-38cp-4px9
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Advisory Summary

CVE-2020-1147 is a HIGH (CVSS 7.8) remote code execution vulnerability (General Security Weakness) affecting Microsoft.NETCore.App libraries in the NuGet ecosystem. The issue involves .net framework, sharepoint server, and visual studio remote code execution vulnerability. Remediation is available by upgrading affected packages to version 2.1.20, 3.1.6.

5 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64

5 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-g5vf-38cp-4px9 CVE-2020-1147 HIGH .NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability
GHSA-3gp9-h8hw-pxpw CVE-2021-1721 MODERATE Denial of service in .NET core
GHSA-rh58-r7jh-xhx3 CVE-2021-26423 HIGH .NET Core Elevation of Privilege Vulnerability
GHSA-3w5p-jhp5-c29q CVE-2020-1108 HIGH .NET Core & .NET Framework Denial of Service Vulnerability
GHSA-vgwq-hfqc-58wv CVE-2021-34485 MODERATE .NET Core Information Disclosure Vulnerability

CVE-2020-1147 at a Glance

CVE Identifier CVE-2020-1147
GHSA Identifier GHSA-g5vf-38cp-4px9
Severity HIGH
CVSS v3.1 Base Score 7.8
CWE Classification General Security Weakness
Affected Product Microsoft.NETCore.App
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 7.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H).

Attack Vector Local (AV:L)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-1147

To remediate this vulnerability, upgrade all affected Microsoft.NETCore.App dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Microsoft.NETCore.App fixed: 2.1.20 
Upgrade Microsoft.NETCore.App to 2.1.20
Microsoft.NETCore.App.Runtime.linux-arm fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.linux-arm to 3.1.6
Microsoft.NETCore.App.Runtime.linux-arm64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.linux-arm64 to 3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-arm64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.linux-musl-arm64 to 3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-x64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.linux-musl-x64 to 3.1.6
Microsoft.NETCore.App.Runtime.linux-x64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.linux-x64 to 3.1.6
Microsoft.NETCore.App.Runtime.osx-x64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.osx-x64 to 3.1.6
Microsoft.NETCore.App.Runtime.rhel.6-x64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.rhel.6-x64 to 3.1.6
Microsoft.NETCore.App.Runtime.win-arm fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.win-arm to 3.1.6
Microsoft.NETCore.App.Runtime.win-arm64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.win-arm64 to 3.1.6
Microsoft.NETCore.App.Runtime.win-x64 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.win-x64 to 3.1.6
Microsoft.NETCore.App.Runtime.win-x86 fixed: 3.1.6 
Upgrade Microsoft.NETCore.App.Runtime.win-x86 to 3.1.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Microsoft.NETCore.App

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-1147, inspect your project dependencies for Microsoft.NETCore.App:

inspect dependencies for Microsoft.NETCore.App

Analyze the terminal output to locate any version of Microsoft.NETCore.App in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.20), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Microsoft.NETCore.App, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.

CVE-2020-1147 Affected Microsoft.NETCore.App Versions

12 component(s)
Fixed Versions:
2.1.203.1.6
Product / Package Ecosystem Affected Versions Fixed Version
Microsoft.NETCore.App
nuget/Microsoft.NETCore.App
NuGet
≥ 2.1.0
< 2.1.20
2.1.20
Microsoft.NETCore.App.Runtime.linux-arm
nuget/Microsoft.NETCore.App.Runtime.linux-arm
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.linux-arm64
nuget/Microsoft.NETCore.App.Runtime.linux-arm64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-arm64
nuget/Microsoft.NETCore.App.Runtime.linux-musl-arm64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.linux-musl-x64
nuget/Microsoft.NETCore.App.Runtime.linux-musl-x64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.linux-x64
nuget/Microsoft.NETCore.App.Runtime.linux-x64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.osx-x64
nuget/Microsoft.NETCore.App.Runtime.osx-x64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.rhel.6-x64
nuget/Microsoft.NETCore.App.Runtime.rhel.6-x64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.win-arm
nuget/Microsoft.NETCore.App.Runtime.win-arm
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.win-arm64
nuget/Microsoft.NETCore.App.Runtime.win-arm64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.win-x64
nuget/Microsoft.NETCore.App.Runtime.win-x64
NuGet
≥ 3.1.0
< 3.1.6
3.1.6
Microsoft.NETCore.App.Runtime.win-x86
nuget/Microsoft.NETCore.App.Runtime.win-x86
NuGet
≥ 3.1.0
< 3.1.6
3.1.6

References

NVD — CVE-2020-1147 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-1147
Microsoft.NETCore.App Source Repository REPOSITORY
https://github.com/dotnet/announcements/issues/159
Microsoft.NETCore.App Security Information SECURITY
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1147
www.cisa.gov/known-exploited-vul... WEB
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-1147
www.exploitalert.com/view-details.html WEB
https://www.exploitalert.com/view-details.html?id=35992
Microsoft.NETCore.App Security Information SECURITY
http://packetstormsecurity.com/files/158694/SharePoint-DataSet-DataTable-Deserialization.html
Microsoft.NETCore.App Security Information SECURITY
http://packetstormsecurity.com/files/158876/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html
Microsoft.NETCore.App Security Information SECURITY
http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html

Frequently Asked Questions

What is CVE-2020-1147?
CVE-2020-1147 is a security vulnerability in Microsoft.NETCore.App involving .NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability under General Security Weakness.
Which Microsoft.NETCore.App versions are affected?
Affected versions include releases prior to 2.1.20, 3.1.6 across affected packages: Microsoft.NETCore.App, Microsoft.NETCore.App.Runtime.linux-arm, Microsoft.NETCore.App.Runtime.linux-arm64, Microsoft.NETCore.App.Runtime.linux-musl-arm64, Microsoft.NETCore.App.Runtime.linux-musl-x64, Microsoft.NETCore.App.Runtime.linux-x64, Microsoft.NETCore.App.Runtime.osx-x64, Microsoft.NETCore.App.Runtime.rhel.6-x64, Microsoft.NETCore.App.Runtime.win-arm, Microsoft.NETCore.App.Runtime.win-arm64, Microsoft.NETCore.App.Runtime.win-x64, Microsoft.NETCore.App.Runtime.win-x86.
What version fixes CVE-2020-1147?
Upgrading to 2.1.20, 3.1.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Microsoft.NETCore.App affected?
Yes, Microsoft.NETCore.App is affected in releases prior to 2.1.20. Upgrade your dependency to 2.1.20 or later.
Is Microsoft.NETCore.App.Runtime.linux-arm affected?
Yes, Microsoft.NETCore.App.Runtime.linux-arm is affected in releases prior to 3.1.6. Upgrade your dependency to 3.1.6 or later.
What is the CVSS score of CVE-2020-1147?
CVE-2020-1147 has a CVSS v3.1 base score of 7.8 (HIGH) with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H.
What CWE is associated with CVE-2020-1147?
CVE-2020-1147 is classified under General Security Weakness.
How can I check NuGet dependencies for CVE-2020-1147?
Run the dependency tree command: 'inspect dependencies for Microsoft.NETCore.App'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g5vf-38cp-4px9",
  "modified" : "2025-10-22T17:53:55Z",
  "published" : "2022-05-24T17:22:57Z",
  "aliases" : [ "CVE-2020-1147" ],
  "summary" : ".NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability",
  "details" : "A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and Visual Studio when the software fails to check the source markup of XML file input, aka '.NET Framework, SharePoint Server, and Visual Studio Remote Code Execution Vulnerability'.",
  "severity" : [ {
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    "url" : "http://packetstormsecurity.com/files/163644/Microsoft-SharePoint-Server-2019-Remote-Code-Execution.html"
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  "database_specific" : {
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    "severity" : "HIGH",
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    "github_reviewed_at" : "2022-10-21T20:58:50Z",
    "nvd_published_at" : "2020-07-14T23:15:00Z"
  }
}