- Vulnerability/
- USN-6278-1
USN-6278-1: .NET vulnerabilities
First published: Tue Aug 08 2023(Updated: )
It was discovered that .NET did not 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)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/aspnetcore-runtime-6.0 | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/aspnetcore-runtime-7.0 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-host | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-host-7.0 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-hostfxr-6.0 | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-hostfxr-7.0 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-runtime-6.0 | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-runtime-7.0 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-sdk-6.0 | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet-sdk-7.0 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet6 | <6.0.121-0ubuntu1~23.04.1 | 6.0.121-0ubuntu1~23.04.1 |
| =23.04 | ||
| All of | ||
| ubuntu/dotnet7 | <7.0.110-0ubuntu1~23.04.1 | 7.0.110-0ubuntu1~23.04.1 |
| =23.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2023-38180
- https://ubuntu.com/security/CVE-2023-35390
- https://ubuntu.com/security/CVE-2023-38178
- https://ubuntu.com/security/notices/USN-6278-2
- https://launchpad.net/ubuntu/+source/dotnet6/6.0.121-0ubuntu1~23.04.1
- https://launchpad.net/ubuntu/+source/dotnet7/7.0.110-0ubuntu1~23.04.1
- https://ubuntu.com/security/notices/USN-6278-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2023-35390?
.NET vulnerabilities are classified as critical, which indicates a high risk of exploitation and potential for remote code execution.
How does CVE-2023-35390 impact Ubuntu 23.04?
CVE-2023-35390 affects .NET packages in Ubuntu 23.04, including aspnetcore-runtime-6.0, aspnetcore-runtime-7.0, dotnet-host, dotnet-host-7.0, dotnet-hostfxr-6.0, dotnet-hostfxr-7.0, dotnet-runtime-6.0, dotnet-runtime-7.0, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet6, and dotnet7.
How can I fix the CVE-2023-35390 vulnerability in Ubuntu 23.04?
To fix the vulnerability, update the affected .NET packages to the remedy versions provided by Ubuntu: aspnetcore-runtime-6.0 (6.0.121-0ubuntu1~23.04.1), aspnetcore-runtime-7.0 (7.0.110-0ubuntu1~23.04.1), dotnet-host (6.0.121-0ubuntu1~23.04.1), dotnet-host-7.0 (7.0.110-0ubuntu1~23.04.1), dotnet-hostfxr-6.0 (6.0.121-0ubuntu1~23.04.1), dotnet-hostfxr-7.0 (7.0.110-0ubuntu1~23.04.1), dotnet-runtime-6.0 (6.0.121-0ubuntu1~23.04.1), dotnet-runtime-7.0 (7.0.110-0ubuntu1~23.04.1), dotnet-sdk-6.0 (6.0.121-0ubuntu1~23.04.1), dotnet-sdk-7.0 (7.0.110-0ubuntu1~23.04.1), dotnet6 (6.0.121-0ubuntu1~23.04.1), and dotnet7 (7.0.110-0ubuntu1~23.04.1).
Where can I find more information about CVE-2023-35390?
More information about CVE-2023-35390 can be found at the following link: [CVE-2023-35390](https://ubuntu.com/security/CVE-2023-35390).
Are there any other related vulnerabilities?
Yes, there are other related vulnerabilities: CVE-2023-38180 and CVE-2023-38178. More information about these vulnerabilities can be found at the following links: [CVE-2023-38180](https://ubuntu.com/security/CVE-2023-38180) and [CVE-2023-38178](https://ubuntu.com/security/CVE-2023-38178).
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