========================================================================== Ubuntu Security Notice USN-6362-2 October 25, 2023
.Net regressions ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.04 - Ubuntu 22.04 LTS Summary: An incomplete fix was discovered in .Net. Software Description: - dotnet6: dotNET CLI tools and runtime - 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) 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: The problem can be corrected by updating your system to the following package versions: Ubuntu 23.04: aspnetcore-runtime-6.0 6.0.124-0ubuntu1~23.04.1 aspnetcore-runtime-7.0 7.0.113-0ubuntu1~23.04.1 dotnet-host 6.0.124-0ubuntu1~23.04.1 dotnet-host-7.0 7.0.113-0ubuntu1~23.04.1 dotnet-hostfxr-6.0 6.0.124-0ubuntu1~23.04.1 dotnet-hostfxr-7.0 7.0.113-0ubuntu1~23.04.1 dotnet-runtime-6.0 6.0.124-0ubuntu1~23.04.1 dotnet-runtime-7.0 7.0.113-0ubuntu1~23.04.1 dotnet-sdk-6.0 6.0.124-0ubuntu1~23.04.1 dotnet-sdk-7.0 7.0.113-0ubuntu1~23.04.1 dotnet6 6.0.124-0ubuntu1~23.04.1 dotnet7 7.0.113-0ubuntu1~23.04.1 Ubuntu 22.04 LTS: aspnetcore-runtime-6.0 6.0.124-0ubuntu1~22.04.1 aspnetcore-runtime-7.0 7.0.113-0ubuntu1~22.04.1 dotnet-host 6.0.124-0ubuntu1~22.04.1 dotnet-host-7.0 7.0.113-0ubuntu1~22.04.1 dotnet-hostfxr-6.0 6.0.124-0ubuntu1~22.04.1 dotnet-hostfxr-7.0 7.0.113-0ubuntu1~22.04.1 dotnet-runtime-6.0 6.0.124-0ubuntu1~22.04.1 dotnet-runtime-7.0 7.0.113-0ubuntu1~22.04.1 dotnet-sdk-6.0 6.0.124-0ubuntu1~22.04.1 dotnet-sdk-7.0 7.0.113-0ubuntu1~22.04.1 dotnet6 6.0.124-0ubuntu1~22.04.1 dotnet7 7.0.113-0ubuntu1~22.04.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-6362-2 https://ubuntu.com/security/notices/USN-6362-1 CVE-2023-36799, https://launchpad.net/bugs/2040207, https://launchpad.net/bugs/2040208 Package Information: https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~23.04.1 https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~23.04.1 https://launchpad.net/ubuntu/+source/dotnet6/6.0.124-0ubuntu1~22.04.1 https://launchpad.net/ubuntu/+source/dotnet7/7.0.113-0ubuntu1~22.04.1
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