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Ubuntu 24.04 LTS 7058-1 critical: dotnet6 & dotnet8 remote execution risk

Several security issues were fixed in dotnet6, dotnet8.. ========================================================================== Ubuntu Security Notice USN-7058-1 October 08, 2024 dotnet6, dotnet8 vulnerabilities ========================================================================== 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 . The latest releases of dotnet6 and dotnet8 tackle major vulnerabilities impacting Ubuntu versions 22.04 and 24.04. Ensure your systems are secure today!. Ubuntu Security Notice,dotnet updates,remote execution fix,software patch. . Severity: Critical. LinuxSecurity.com Team

Oct 08, 2024 •Critical Ubuntu