Ubuntu 7058-1: .NET Security Advisory Updates
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in dotnet6, dotnet8. Software Description: - dotnet8: .NET CLI tools and runtime - dotnet6: .NET CLI tools and runtime Details: Brennan Conroy discovered that the .NET Kestrel web server did not properly handle closing HTTP/3 streams under certain circumstances. An attacker could possibly use this issue to achieve remote code execution. This vulnerability only impacted Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-38229) It was discovered that .NET components designed to process malicious input were susceptible to hash flooding attacks. An attacker could possibly use this issue to cause a denial of service, resulting in a crash. (CVE-2024-43483) It was discovered that the .NET System.IO.Packaging namespace did not properly process SortedList data structures. An attacker could possibly use this issue to cause a denial of service, resulting in a crash. (CVE-2024-43484) It was discovered that .NET did not properly handle the deserialization of of certain JSON properties. An attacker could possibly use this issue to cause a denial of service, resulting in a crash. (CVE-2024-43485)
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS aspnetcore-runtime-8.0 8.0.10-0ubuntu1~24.04.1 dotnet-host-8.0 8.0.10-0ubuntu1~24.04.1 dotnet-hostfxr-8.0 8.0.10-0ubuntu1~24.04.1 dotnet-runtime-8.0 8.0.10-0ubuntu1~24.04.1 dotnet-sdk-8.0 8.0.110-0ubuntu1~24.04.1 dotnet8 8.0.110-8.0.10-0ubuntu1~24.04.1 Ubuntu 22.04 LTS aspnetcore-runtime-6.0 6.0.135-0ubuntu1~22.04.1 aspnetcore-runtime-8.0 8.0.10-0ubuntu1~22.04.1 dotnet-host 6.0.135-0ubuntu1~22.04.1 dotnet-host-8.0 8.0.10-0ubuntu1~22.04.1 dotnet-hostfxr-6.0 6.0.135-0ubuntu1~22.04.1 dotnet-hostfxr-8.0 8.0.10-0ubuntu1~22.04.1 dotnet-runtime-6.0 6.0.135-0ubuntu1~22.04.1 dotnet-runtime-8.0 8.0.10-0ubuntu1~22.04.1 dotnet-sdk-6.0 6.0.135-0ubuntu1~22.04.1 dotnet-sdk-8.0 8.0.110-0ubuntu1~22.04.1 dotnet6 6.0.135-0ubuntu1~22.04.1 dotnet8 8.0.110-8.0.10-0ubuntu1~22.04.1 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-7058-1
CVE-2024-38229, CVE-2024-43483, CVE-2024-43484, CVE-2024-43485
Package Information
https://launchpad.net/ubuntu/+source/dotnet8/8.0.110-8.0.10-0ubuntu1~24.04.1 https://launchpad.net/ubuntu/+source/dotnet6/6.0.135-0ubuntu1~22.04.1 https://launchpad.net/ubuntu/+source/dotnet8/8.0.110-8.0.10-0ubuntu1~22.04.1
