Denial of Service (DoS) Affecting package, versions [2.0.0,2.0.5)

  • Attack Complexity


  • Availability


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  • snyk-id


  • published

    18 Apr 2019

  • disclosed

    9 Jan 2018

  • credit


How to fix?

Upgrade runtime.osx-x64.Microsoft.NETCore.App to version 2.0.5 or higher.


runtime.osx-x64.Microsoft.NETCore.App is a internal implementation package not meant for direct consumption.

Affected versions of this package are vulnerable to Denial of Service (DoS) when specially crafted requests are submitted. This is because of the way .NET applications process XML documents. This CVE is different from CVE-2018-0765.


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