USN-6362-1: .NET vulnerability

12 September 2023

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

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Releases

Packages

  • dotnet6 - dotNET CLI tools and runtime
  • dotnet7 - dotNET CLI tools and runtime

Details

Kevin Jones discovered that .NET did not properly process certain
X.509 certificates. An attacker could possibly use this issue to
cause a denial of service.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 23.04
Ubuntu 22.04

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

References

Related notices

  • USN-6438-1: dotnet-sdk-7.0-source-built-artifacts, dotnet-host, dotnet-templates-7.0, dotnet-sdk-6.0, netstandard-targeting-pack-2.1-7.0, aspnetcore-targeting-pack-6.0, netstandard-targeting-pack-2.1, aspnetcore-targeting-pack-7.0, aspnetcore-runtime-6.0, dotnet-runtime-6.0, dotnet7, dotnet-apphost-pack-6.0, dotnet-host-7.0, dotnet-runtime-7.0, dotnet6, dotnet-targeting-pack-7.0, dotnet-apphost-pack-7.0, dotnet-templates-6.0, dotnet-hostfxr-6.0, dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-targeting-pack-6.0, dotnet-hostfxr-7.0, dotnet-sdk-7.0
  • USN-6438-2: dotnet-sdk-7.0-source-built-artifacts, dotnet-host, dotnet-templates-7.0, dotnet-sdk-6.0, netstandard-targeting-pack-2.1-7.0, aspnetcore-targeting-pack-6.0, netstandard-targeting-pack-2.1, aspnetcore-targeting-pack-7.0, aspnetcore-runtime-6.0, dotnet-runtime-6.0, dotnet7, dotnet-apphost-pack-6.0, dotnet-host-7.0, dotnet-runtime-7.0, dotnet6, dotnet-targeting-pack-7.0, dotnet-apphost-pack-7.0, dotnet-templates-6.0, dotnet-hostfxr-6.0, dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-targeting-pack-6.0, dotnet-hostfxr-7.0, dotnet-sdk-7.0
  • USN-6362-2: dotnet-sdk-7.0-source-built-artifacts, dotnet-host, dotnet-templates-7.0, dotnet-sdk-6.0, netstandard-targeting-pack-2.1-7.0, aspnetcore-targeting-pack-6.0, netstandard-targeting-pack-2.1, aspnetcore-targeting-pack-7.0, aspnetcore-runtime-6.0, dotnet-runtime-6.0, dotnet7, dotnet-apphost-pack-6.0, dotnet-host-7.0, dotnet-runtime-7.0, dotnet6, dotnet-targeting-pack-7.0, dotnet-apphost-pack-7.0, dotnet-templates-6.0, dotnet-hostfxr-6.0, dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-targeting-pack-6.0, dotnet-hostfxr-7.0, dotnet-sdk-7.0

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Further reading