--- title: 'USN-6362-2: .Net regressions | Ubuntu security notices' description: Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things. url: https://ubuntu.com/security/notices/USN-6362-2 --- 1. [Ubuntu Security Notices](https://ubuntu.com/security/notices) 2. USN-6362-2 --- # USN-6362-2: .Net regressions Publication date 25 October 2023 Overview An incomplete fix was discovered in .Net. Releases [23.04](https://ubuntu.com/security/notices?release=lunar) [22.04 LTS](https://ubuntu.com/security/notices?release=jammy) --- Open side navigation ## Packages * [dotnet6](https://ubuntu.com/security/cves?package=dotnet6) - dotNET CLI tools and runtime * [dotnet7](https://ubuntu.com/security/cves?package=dotnet7) - dotNET CLI tools and runtime ## Details USN-6362-1 fixed vulnerabilities in .Net. It was discovered that the fix for [[CVE-2023-36799](https://ubuntu.com/security/CVE-2023-36799)](https://ubuntu.com/security/CVE-2023-36799) was incomplete. This update fixes the problem. Original advisory 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. ## Update instructions In general, a standard system update will make all the necessary changes. [Learn more about how to get the fixes.](https://ubuntu.com/security/cves/about#security) 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](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [aspnetcore-runtime-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | [dotnet-host](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [dotnet-host-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | [dotnet-hostfxr-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [dotnet-hostfxr-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | [dotnet-runtime-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [dotnet-runtime-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | [dotnet-sdk-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [dotnet-sdk-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | [dotnet6](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1) | | | | [dotnet7](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~23.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1) | | | | 22.04 LTS jammy | [aspnetcore-runtime-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [aspnetcore-runtime-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | | [dotnet-host](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [dotnet-host-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | | [dotnet-hostfxr-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [dotnet-hostfxr-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | | [dotnet-runtime-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [dotnet-runtime-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | | [dotnet-sdk-6.0](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [dotnet-sdk-7.0](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | | [dotnet6](https://launchpad.net/ubuntu/+source/dotnet6) –  [6.0.124-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1) | | | | [dotnet7](https://launchpad.net/ubuntu/+source/dotnet7) –  [7.0.113-0ubuntu1~22.04.1](https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1) | | | --- ### 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. [Get Ubuntu Pro](https://ubuntu.com/pro) ## References * * * [CVE-2023-36799](https://ubuntu.com/security/CVE-2023-36799) ## Related notices * [USN-6438-1](https://ubuntu.com/security/notices/USN-6438-1) * [USN-6438-2](https://ubuntu.com/security/notices/USN-6438-2) * [USN-6362-1](https://ubuntu.com/security/notices/USN-6362-1)