Denial of Service (DoS) Affecting microsoft.aspnetcore.app.runtime.linux-musl-x64 package, versions [5.0.0,5.0.14) [6.0.0,6.0.2)
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Test your applications- Snyk ID SNYK-DOTNET-MICROSOFTASPNETCOREAPPRUNTIMELINUXMUSLX64-3060152
- published 23 Oct 2022
- disclosed 21 Oct 2022
- credit Unknown
Introduced: 21 Oct 2022
CVE-2022-21986 Open this link in a new tabHow to fix?
Upgrade Microsoft.AspNetCore.App.Runtime.linux-musl-x64
to version 5.0.14, 6.0.2 or higher.
Overview
Microsoft.AspNetCore.App.Runtime.linux-musl-x64 is a package providing a default set of APIs for building an ASP.NET Core application. Contains assets used for self-contained deployments.
Affected versions of this package are vulnerable to Denial of Service (DoS) when the Kestrel
web server processes certain HTTP/2 and HTTP/3 requests.
Details
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm
ws
package