1. Ubuntu Security Notices
  2. USN-6362-1

USN-6362-1: .NET vulnerability

Publication date

12 September 2023

Overview

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

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.

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.

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
23.04 lunar aspnetcore-runtime-6.0 –  6.0.122-0ubuntu1~23.04.1
aspnetcore-runtime-7.0 –  7.0.111-0ubuntu1~23.04.1
dotnet-host –  6.0.122-0ubuntu1~23.04.1
dotnet-host-7.0 –  7.0.111-0ubuntu1~23.04.1
dotnet-hostfxr-6.0 –  6.0.122-0ubuntu1~23.04.1
dotnet-hostfxr-7.0 –  7.0.111-0ubuntu1~23.04.1
dotnet-runtime-6.0 –  6.0.122-0ubuntu1~23.04.1
dotnet-runtime-7.0 –  7.0.111-0ubuntu1~23.04.1
dotnet-sdk-6.0 –  6.0.122-0ubuntu1~23.04.1
dotnet-sdk-7.0 –  7.0.111-0ubuntu1~23.04.1
dotnet6 –  6.0.122-0ubuntu1~23.04.1
dotnet7 –  7.0.111-0ubuntu1~23.04.1
22.04 jammy aspnetcore-runtime-6.0 –  6.0.122-0ubuntu1~22.04.1
aspnetcore-runtime-7.0 –  7.0.111-0ubuntu1~22.04.1
dotnet-host –  6.0.122-0ubuntu1~22.04.1
dotnet-host-7.0 –  7.0.111-0ubuntu1~22.04.1
dotnet-hostfxr-6.0 –  6.0.122-0ubuntu1~22.04.1
dotnet-hostfxr-7.0 –  7.0.111-0ubuntu1~22.04.1
dotnet-runtime-6.0 –  6.0.122-0ubuntu1~22.04.1
dotnet-runtime-7.0 –  7.0.111-0ubuntu1~22.04.1
dotnet-sdk-6.0 –  6.0.122-0ubuntu1~22.04.1
dotnet-sdk-7.0 –  7.0.111-0ubuntu1~22.04.1
dotnet6 –  6.0.122-0ubuntu1~22.04.1
dotnet7 –  7.0.111-0ubuntu1~22.04.1

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References

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