.NET June 2023 Updates – .NET 7.0.7, .NET 6.0.18

Today, we are releasing the .NET June 2023 Updates. These updates contain security and non-security improvements. Your app may be vulnerable if you have not deployed a recent .NET update.

You can download 7.0.7 and 6.0.18 versions for Windows, macOS, and Linux, for x86, x64, Arm32, and Arm64.

Windows Package Manager CLI (winget)

You can now install .NET updates using the Windows Package Manager CLI (winget):

• To install the .NET 7 runtime: winget install dotnet-runtime-7
• To install the .NET 7 SDK: winget install dotnet-sdk-7
• To update an existing installation: winget upgrade

See Install with Windows Package Manager (winget) for more information.

Improvements

• ASP.NET Core: 7.0.7 | 6.0.18
• Entity Framework Core: 7.0.7
• Runtime: 7.0.7 | 6.0.18
• Winforms: 7.0.7 | 6.0.18
• WPF: 7.0.7 | 6.0.18

Security

CVE-2023-24895 – .NET Remote Code Execution Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in how WPF for .NET handles certain XAML Frame elements which may result in remote code execution.

CVE-2023-24897 – .NET Remote Code Execution Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in how .NET reads debugging symbols, where reading a malicious symbols file may result in remote code execution.

CVE-2023-24936 – .NET Elevation of Privilege Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET when deserializing a DataSet or DataTable from XML which may result in elevation of privileges.

CVE-2023-29331 – .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET when processing X.509 certificates that may result in Denial of Service.

CVE-2023-29337 – NuGet Client Remote Code Execution Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET and NuGet on Linux. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in nuget where a potential race condition that can lead to a symlink attack

CVE-2023-32032 – .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET using extracting the contents of a Tar file which may result in elevation of privileges.

CVE-2023-33126 – .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET during crash and stack trace scenarios that could lead to loading arbitrary binaries.

CVE-2023-33128 – .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in .NET source generator for P/Invokes that can lead to generated code freeing uninitialized memory and crashing.

CVE-2023-33135 – .NET Denial of Service Vulnerability

Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability.

A vulnerability exists in the .NET SDK during tool restore which can lead to an elevation of privilege.

Visual Studio

See release notes for Visual Studio compatibility for .NET 7.0 and .NET 6.0.