1. Ubuntu Security Notices
  2. USN-7563-1

USN-7563-1: .NET vulnerability

Publication date

10 June 2025

Overview

.NET could be made to crash or run programs if it received specially crafted network traffic.

Releases

Packages

  • dotnet8 - .NET CLI tools and runtime
  • dotnet9 - .NET CLI tools and runtime

Details

It was discovered that .NET did not properly validate search path in
Microsoft.NETCore.App.Runtime. An attacker could possibly use this issue
to execute arbitrary code.

It was discovered that .NET did not properly validate search path in
Microsoft.NETCore.App.Runtime. An attacker could possibly use this issue
to execute arbitrary code.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
25.04 plucky aspnetcore-runtime-8.0 –  8.0.17-0ubuntu1~25.04.1
aspnetcore-runtime-9.0 –  9.0.6-0ubuntu1~25.04.1
dotnet-host-8.0 –  8.0.17-0ubuntu1~25.04.1
dotnet-host-9.0 –  9.0.6-0ubuntu1~25.04.1
dotnet-hostfxr-8.0 –  8.0.17-0ubuntu1~25.04.1
dotnet-hostfxr-9.0 –  9.0.6-0ubuntu1~25.04.1
dotnet-runtime-8.0 –  8.0.17-0ubuntu1~25.04.1
dotnet-runtime-9.0 –  9.0.6-0ubuntu1~25.04.1
dotnet-sdk-8.0 –  8.0.117-0ubuntu1~25.04.1
dotnet-sdk-9.0 –  9.0.107-0ubuntu1~25.04.1
dotnet8 –  8.0.117-8.0.17-0ubuntu1~25.04.1
dotnet9 –  9.0.107-9.0.6-0ubuntu1~25.04.1
24.10 oracular aspnetcore-runtime-8.0 –  8.0.17-0ubuntu1~24.10.1
aspnetcore-runtime-9.0 –  9.0.6-0ubuntu1~24.10.1
dotnet-host-8.0 –  8.0.17-0ubuntu1~24.10.1
dotnet-host-9.0 –  9.0.6-0ubuntu1~24.10.1
dotnet-hostfxr-8.0 –  8.0.17-0ubuntu1~24.10.1
dotnet-hostfxr-9.0 –  9.0.6-0ubuntu1~24.10.1
dotnet-runtime-8.0 –  8.0.17-0ubuntu1~24.10.1
dotnet-runtime-9.0 –  9.0.6-0ubuntu1~24.10.1
dotnet-sdk-8.0 –  8.0.117-0ubuntu1~24.10.1
dotnet-sdk-9.0 –  9.0.107-0ubuntu1~24.10.1
dotnet8 –  8.0.117-8.0.17-0ubuntu1~24.10.1
dotnet9 –  9.0.107-9.0.6-0ubuntu1~24.10.1
24.04 noble aspnetcore-runtime-8.0 –  8.0.17-0ubuntu1~24.04.1
dotnet-host-8.0 –  8.0.17-0ubuntu1~24.04.1
dotnet-hostfxr-8.0 –  8.0.17-0ubuntu1~24.04.1
dotnet-runtime-8.0 –  8.0.17-0ubuntu1~24.04.1
dotnet-sdk-8.0 –  8.0.117-0ubuntu1~24.04.1
dotnet8 –  8.0.117-8.0.17-0ubuntu1~24.04.1
22.04 jammy aspnetcore-runtime-8.0 –  8.0.17-0ubuntu1~22.04.1
dotnet-host-8.0 –  8.0.17-0ubuntu1~22.04.1
dotnet-hostfxr-8.0 –  8.0.17-0ubuntu1~22.04.1
dotnet-runtime-8.0 –  8.0.17-0ubuntu1~22.04.1
dotnet-sdk-8.0 –  8.0.117-0ubuntu1~22.04.1
dotnet8 –  8.0.117-8.0.17-0ubuntu1~22.04.1

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References

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