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CVE-2021-1723: ASP.NET Core and Visual Studio Denial of Service Vulnerability

May 24, 2022 (updated October 9, 2024)

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.

References

  • github.com/advisories/GHSA-242j-2gm6-5rwx
  • github.com/dotnet/announcements/issues/170
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3L27CGRVEWUPELNJOGTCW6GLEDBECB4B
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RRXHERXW4KR5WCP76UDW5PC7GX3YQLUW
  • msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1723
  • nvd.nist.gov/vuln/detail/CVE-2021-1723

Code Behaviors & Features

Detect and mitigate CVE-2021-1723 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions starting from 5.0.1 before 5.0.2, version 5.0.1

Fixed versions

  • 5.0.2

Solution

Upgrade to version 5.0.2 or above.

Impact 7.5 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Source file

nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm/CVE-2021-1723.yml

Spotted a mistake? Edit the file on GitLab.

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