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OpenAdvisories
Critical ALAS2023-2025-1230 3 CVEs

Critical: dotnet8.0 security update (Amazon Linux 2023)

Published Oct 23, 2025 · Updated Oct 23, 2025

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-55315: Inconsistent interpretation of http requests ('http request/response smuggling') in ASP.NET Core allows an authorized attacker to bypass a security feature over a network. CVE-2025-55248: Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network. CVE-2025-55247: Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Fixed packages 22

ReleasePackageFixed in
Amazon Linux · 2023 aspnetcore-runtime-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 aspnetcore-runtime-dbg-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 aspnetcore-targeting-pack-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-apphost-pack-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-apphost-pack-8.0-debuginfo 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-host 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-host-debuginfo 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-hostfxr-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-hostfxr-8.0-debuginfo 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-runtime-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-runtime-8.0-debuginfo 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-runtime-dbg-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-sdk-8.0 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-sdk-8.0-debuginfo 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-sdk-8.0-source-built-artifacts 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-sdk-dbg-8.0 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-targeting-pack-8.0 0:8.0.21-1.amzn2023.0.1
Amazon Linux · 2023 dotnet-templates-8.0 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet8.0-debuginfo 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 dotnet8.0-debugsource 0:8.0.121-1.amzn2023.0.1
Amazon Linux · 2023 netstandard-targeting-pack-2.1 0:8.0.121-1.amzn2023.0.1

Vulnerabilities 3

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-55247.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-55248.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-55315.html