KLA12257
Multiple vulnerabilities in Microsoft Developer Tools

Updated: 08/12/2021
Detect date
?
08/10/2021
Severity
?
High
Description

Multiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to obtain sensitive information, cause denial of service.

Below is a complete list of vulnerabilities:

  1. An information disclosure vulnerability in .NET Core and Visual Studio can be exploited remotely to obtain sensitive information.
  2. An information disclosure vulnerability in ASP.NET Core and Visual Studio can be exploited remotely to obtain sensitive information.
  3. A denial of service vulnerability in .NET Core and Visual Studio can be exploited remotely to cause denial of service.
Affected products

.NET 5.0
.NET Core 2.1
.NET Core 3.1

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Original advisories

CVE-2021-34485
CVE-2021-34532
CVE-2021-26423

Impacts
?
OSI 
[?]

DoS 
[?]
Related products
Microsoft .NET Framework
Microsoft Visual Studio
Microsoft ASP.NET MVC
CVE-IDS
?
CVE-2021-344850.0Unknown
CVE-2021-345320.0Unknown
CVE-2021-264230.0Unknown
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