.NET vulnerability

[Ian Constantin]

==========================================================================
Ubuntu Security Notice USN-6006-1
April 11, 2023

dotnet6, dotnet7 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS

Summary:

.NET could be made to run programs as your login.

Software Description:
- dotnet6: dotNET CLI tools and runtime
- dotnet7: dotNET CLI tools and runtime

Details:

It was discovered that .NET did not properly manage dll files. An
attacker could potentially use this issue to execute arbitrary code.

Update instructions:

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

Ubuntu 22.10:
   aspnetcore-runtime-6.0          6.0.116-0ubuntu1~22.10.1
   aspnetcore-runtime-7.0          7.0.105-0ubuntu1~22.10.1
   dotnet-host                             6.0.116-0ubuntu1~22.10.1
   dotnet-host-7.0                       7.0.105-0ubuntu1~22.10.1
   dotnet-hostfxr-6.0                   6.0.116-0ubuntu1~22.10.1
   dotnet-hostfxr-7.0                   7.0.105-0ubuntu1~22.10.1
   dotnet-runtime-6.0                 6.0.116-0ubuntu1~22.10.1
   dotnet-runtime-7.0                 7.0.105-0ubuntu1~22.10.1
   dotnet-sdk-6.0                        6.0.116-0ubuntu1~22.10.1
   dotnet-sdk-7.0                        7.0.105-0ubuntu1~22.10.1
   dotnet6                                   6.0.116-0ubuntu1~22.10.1
   dotnet7                                   7.0.105-0ubuntu1~22.10.1

Ubuntu 22.04 LTS:
   aspnetcore-runtime-6.0          6.0.116-0ubuntu1~22.04.1
   dotnet-host                             6.0.116-0ubuntu1~22.04.1
   dotnet-hostfxr-6.0                   6.0.116-0ubuntu1~22.04.1
   dotnet-runtime-6.0                  6.0.116-0ubuntu1~22.04.1
   dotnet-sdk-6.0                        6.0.116-0ubuntu1~22.04.1
   dotnet6                                   6.0.116-0ubuntu1~22.04.1

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

References:
   https://ubuntu.com/security/notices/USN-6006-1
   CVE-2023-28260

Package Information:
https://launchpad.net/ubuntu/+source/dotnet6/6.0.116-0ubuntu1~22.10.1
https://launchpad.net/ubuntu/+source/dotnet7/7.0.105-0ubuntu1~22.10.1
https://launchpad.net/ubuntu/+source/dotnet6/6.0.116-0ubuntu1~22.04.1
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