==========================================================================
Ubuntu Security Notice USN-7563-1
June 10, 2025
dotnet8, dotnet9 vulnerability
==========================================================================
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.
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
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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