CVE-2020-0134: 
NixOS vulnerability analysis and mitigation

CVE-2020-0134 was identified in .NET Core, affecting both version 3.0 and 3.1 of the framework. The vulnerability was disclosed and addressed in January 2020, impacting .NET Core on Red Hat Enterprise Linux systems (Red Hat Advisory).

The vulnerability was part of a security update that included fixes for .NET Core SDK 3.0.102, .NET Core Runtime 3.0.2, .NET Core SDK 3.1.101, and .NET Core Runtime 3.1.1. Red Hat rated this security update as having a Critical severity level (Red Hat Advisory).

The vulnerability affected .NET Core installations on Red Hat Enterprise Linux Server, Workstation, and Compute Node environments. Users were required to rebuild their applications to implement the security fixes (Red Hat Advisory).

Red Hat released updated versions of rh-dotnet30-dotnet and rh-dotnet31-dotnet packages to address the vulnerability. The fix required users to update to .NET Core SDK 3.0.102, Runtime 3.0.2, SDK 3.1.101, and Runtime 3.1.1, followed by rebuilding their applications (Red Hat Advisory).