CVE-2023-38180: 
C# vulnerability analysis and mitigation

CVE-2023-38180 is a Denial of Service (DoS) vulnerability affecting Microsoft Visual Studio, .NET versions 6.0 and 7.0, and ASP.NET Core 2.1. The vulnerability was discovered and disclosed in August 2023, and was confirmed to be exploited in the wild as a zero-day. The vulnerability received a CVSSv3 score of 7.5 (High) and was added to CISA's Known Exploited Vulnerabilities Catalog (Tenable Blog).

The vulnerability specifically affects the Kestrel component and is susceptible to slow read attacks that can lead to a Denial of Service condition. It has been assigned a CVSSv3 base score of 7.5 (High) with the following vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. This indicates that the vulnerability can be exploited remotely with no privileges or user interaction required, and while it doesn't impact confidentiality or integrity, it can have a high impact on availability (NVD).

When successfully exploited, this vulnerability allows an unauthenticated remote attacker to create a denial of service condition on vulnerable servers. The attack specifically targets the availability of the system, with no direct impact on confidentiality or integrity of the system (Tenable Blog).

Microsoft has released patches to address this vulnerability. For .NET 6.0, users should update to version 6.0.21 or later, and for .NET 7.0, users should update to version 7.0.10 or later. Visual Studio 2022 users should update to versions 17.2.18, 17.4.10, or later versions depending on their installation. CISA recommends either applying the vendor-provided mitigations or discontinuing use of the product if mitigations are unavailable (Tenable Blog).