[USN-6427-2] .NET vulnerability

Ian Constantin ian.constantin at canonical.com
Thu Oct 19 18:14:19 UTC 2023

Ubuntu Security Notice USN-6427-2
October 19, 2023

dotnet8 vulnerability

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

- Ubuntu 23.10


.NET could be made to crash if it received specially crafted network

Software Description:
- dotnet8: .NET CLI tools and runtime


USN-6427-1 fixed a vulnerability in .NET. This update
provides the corresponding update for .NET 8.

Original advisory details:

   It was discovered that the .NET Kestrel web server did not properly 
   HTTP/2 requests. A remote attacker could possibly use this issue to
   cause a denial of service.

Update instructions:

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

Ubuntu 23.10:
    aspnetcore-runtime-8.0    8.0.0~rc2-0ubuntu1
    dotnet-host-8.0                 8.0.0~rc2-0ubuntu1
    dotnet-hostfxr-8.0             8.0.0~rc2-0ubuntu1
    dotnet-runtime-8.0            8.0.0~rc2-0ubuntu1
    dotnet-sdk-8.0                   8.0.100~rc2-0ubuntu1
    dotnet8                              8.0.100-8.0.0~rc2-0ubuntu1

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


Package Information:

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