Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

USN-6427-2: .NET vulnerability

19 October 2023

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

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

Releases

Packages

  • dotnet8 - .NET CLI tools and runtime

Details

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 handle
HTTP/2 requests. A remote 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 23.10

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

References

Related notices

  • USN-6427-1: aspnetcore-targeting-pack-6.0, dotnet-hostfxr-7.0, dotnet6, dotnet-runtime-6.0, dotnet-templates-6.0, dotnet-targeting-pack-7.0, dotnet7, dotnet-sdk-7.0, dotnet-host-7.0, dotnet-runtime-7.0, netstandard-targeting-pack-2.1-7.0, dotnet-host, dotnet-sdk-6.0, netstandard-targeting-pack-2.1, dotnet-apphost-pack-6.0, dotnet-sdk-7.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-targeting-pack-6.0, dotnet-templates-7.0, aspnetcore-targeting-pack-7.0, dotnet-apphost-pack-7.0, dotnet-hostfxr-6.0, dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-6.0
  • USN-6438-1: aspnetcore-targeting-pack-6.0, dotnet-hostfxr-7.0, dotnet6, dotnet-runtime-6.0, dotnet-templates-6.0, dotnet-targeting-pack-7.0, dotnet7, dotnet-sdk-7.0, dotnet-host-7.0, dotnet-runtime-7.0, netstandard-targeting-pack-2.1-7.0, dotnet-host, dotnet-sdk-6.0, netstandard-targeting-pack-2.1, dotnet-apphost-pack-6.0, dotnet-sdk-7.0-source-built-artifacts, aspnetcore-runtime-7.0, dotnet-targeting-pack-6.0, dotnet-templates-7.0, aspnetcore-targeting-pack-7.0, dotnet-apphost-pack-7.0, dotnet-hostfxr-6.0, dotnet-sdk-6.0-source-built-artifacts, aspnetcore-runtime-6.0
  • USN-6505-1: nghttp2-proxy, libnghttp2-14, nghttp2-server, libnghttp2-doc, nghttp2-client, libnghttp2-dev, nghttp2
  • USN-6574-1: golang-1.21-doc, golang-1.20-doc, golang-1.21-go, golang-1.20-go, golang-1.20, golang-1.20-src, golang-1.21-src, golang-1.21
  • USN-6754-1: nghttp2-proxy, libnghttp2-14, nghttp2-server, libnghttp2-doc, nghttp2-client, libnghttp2-dev, nghttp2
  • USN-6994-1: netty, libnetty-java
  • USN-7067-1: vim-haproxy, haproxy-doc, haproxy

Join the discussion

Need help with your security needs?

Ubuntu Pro provides up to ten-year security coverage for over 23,000 open-source packages within the Ubuntu Main and Universe repositories.

Talk to an expert to find out what would work best for you

Further reading