Ubuntu 6278-2: .NET vulnerabilities
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS Summary: Several security issues were fixed in .NET. Software Description: - dotnet6: dotNET CLI tools and runtime - dotnet7: dotNET CLI tools and runtime Details: USN-6278-1 fixed several vulnerabilities in .NET. This update provides the corresponding updates for Ubuntu 22.04 LTS. Original advisory details: It was discovered that .NET did properly handle the execution of certain commands. An attacker could possibly use this issue to achieve remote code execution. (CVE-2023-35390) Benoit Foucher discovered that .NET did not properly implement the QUIC stream limit in HTTP/3. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-38178) It was discovered that .NET did not properly handle the disconnection of potentially malicious clients interfacing with a Kestrel server. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-38180)
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: aspnetcore-runtime-6.0 6.0.121-0ubuntu1~22.04.1 aspnetcore-runtime-7.0 7.0.110-0ubuntu1~22.04.1 dotnet-host 6.0.121-0ubuntu1~22.04.1 dotnet-host-7.0 7.0.110-0ubuntu1~22.04.1 dotnet-hostfxr-6.0 6.0.121-0ubuntu1~22.04.1 dotnet-hostfxr-7.0 7.0.110-0ubuntu1~22.04.1 dotnet-runtime-6.0 6.0.121-0ubuntu1~22.04.1 dotnet-runtime-7.0 7.0.110-0ubuntu1~22.04.1 dotnet-sdk-6.0 6.0.121-0ubuntu1~22.04.1 dotnet-sdk-7.0 7.0.110-0ubuntu1~22.04.1 dotnet6 6.0.121-0ubuntu1~22.04.1 dotnet7 7.0.110-0ubuntu1~22.04.1 In general, a standard system update will make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-6278-2
https://ubuntu.com/security/notices/USN-6278-1
CVE-2023-35390, CVE-2023-38178, CVE-2023-38180
![Dist Ubuntu](/images/distros/dist-ubuntu.png)
Package Information
https://launchpad.net/ubuntu/+source/dotnet6/6.0.121-0ubuntu1~22.04.1 https://launchpad.net/ubuntu/+source/dotnet7/7.0.110-0ubuntu1~22.04.1