Denial of Service (DoS) Affecting cumulative-distribution-function package, versions <2.0.0
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Test your applications- Snyk ID SNYK-JS-CUMULATIVEDISTRIBUTIONFUNCTION-1278985
- published 3 May 2021
- disclosed 2 May 2021
- credit Unknown
Introduced: 2 May 2021
CVE-2021-29486 Open this link in a new tabHow to fix?
Upgrade cumulative-distribution-function to version 2.0.0 or higher.
Overview
cumulative-distribution-function is a create empirical cumulative distribution function from array of values
Affected versions of this package are vulnerable to Denial of Service (DoS). In the case of a NodeJS server-app using this library to act on invalid non-numeric data, the NodeJS server may crash. This may affect other users of this server and/or require the server to be rebooted for proper operation. In the case of a browser app using this library to act on invalid non-numeric data, that browser may crash or lock up.
A flaw enabling an infinite-loop was discovered in the code for evaluating the cumulative-distribution-function of input data. Although the documentation explains that numeric data is required, some users may confuse an array of strings like ["1","2","3","4","5"] for numeric data [1,2,3,4,5] when it is in fact string data. An infinite loop is possible when the cumulative-distribution-function is evaluated for a given point when the input data is string data rather than type number.
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
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