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Ubuntu 25.04: USN-7563-1 moderate: .NET network code execution

ubuntu
Calendar Grey June 11, 2025
Dist Ubuntu Esm H88
The Ubuntu Security Team has issued a warning about vulnerabilities in the .NET runtime that may allow code execution and system compromises
.NET could be made to crash or run programs if it received specially crafted network traffic.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: .NET could be made to crash or run programs if it received specially crafted network traffic. Software Description: - 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.

Topics%20covered

Topics Covered

security advisory Ubuntu update instructions execution network threat dotnet

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 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 Ubuntu 24.10 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 Ubuntu 24.04 LTS 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 Ubuntu 22.04 LTS 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 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7563-1

CVE-2025-30399

Ubuntu Security Notice USN-7563-1

Topics%20covered

Topics Covered

security advisory Ubuntu update instructions execution network threat dotnet

Package Information

https://launchpad.net/ubuntu/+source/dotnet8/8.0.117-8.0.17-0ubuntu1~25.04.1 https://launchpad.net/ubuntu/+source/dotnet9/9.0.107-9.0.6-0ubuntu1~25.04.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.117-8.0.17-0ubuntu1~24.10.1 https://launchpad.net/ubuntu/+source/dotnet9/9.0.107-9.0.6-0ubuntu1~24.10.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.117-8.0.17-0ubuntu1~24.04.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.117-8.0.17-0ubuntu1~22.04.1

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