USN-6278-2: .NET vulnerabilities

Published Aug 10, 2023
·
Updated

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)

Affected Software

24 affected componentsFixes available
All of the following
ubuntu/aspnetcore-runtime-6.0<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/aspnetcore-runtime-7.0<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-host<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-host-7.0<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-hostfxr-6.0<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-hostfxr-7.0<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-runtime-6.0<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-runtime-7.0<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-sdk-6.0<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet-sdk-7.0<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet6<6.0.121-0ubuntu1~22.04.1
6.0.121-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04
All of the following
ubuntu/dotnet7<7.0.110-0ubuntu1~22.04.1
7.0.110-0ubuntu1~22.04.1
Ubuntu Ubuntu=22.04

Event History

Aug 10, 2023
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the vulnerability ID for the .NET vulnerabilities?

The vulnerability ID for the .NET vulnerabilities is USN-6278-2.

2

What is the severity of USN-6278-2?

The severity of USN-6278-2 is not specified in the provided information.

3

Which Ubuntu versions are affected by USN-6278-2?

The Ubuntu version affected by USN-6278-2 is 22.04.

4

What is the remedy for the .NET vulnerabilities?

The remedy for the .NET vulnerabilities is to update the affected software packages to the specified versions: 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).

5

Where can I find more information about the vulnerabilities?

You can find more information about the vulnerabilities on the following references: [CVE-2023-38180](https://ubuntu.com/security/CVE-2023-38180), [CVE-2023-35390](https://ubuntu.com/security/CVE-2023-35390), [CVE-2023-38178](https://ubuntu.com/security/CVE-2023-38178).

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