cumulative-distribution-function is an open source npm library used which calculates statistical cumulative distribution function from data array of x values. In versions prior to 2.0.0 apps using this library on improper data may crash or go into an infinite-loop. 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`. This vulnerability enables an infinite-cpu-loop denial-of-service-attack on any app using npm:cumulative-distribution-function v1.0.3 or earlier if the attacker can supply malformed data to the library. The vulnerability could also manifest if a data source to be analyzed changes data type from Arrays of number (proper) to Arrays of string (invalid, but undetected by earlier version of the library). Users should upgrade to at least v2.0.0, or the latest version. Tests for several types of invalid data have been created, and version 2.0.0 has been tested to reject this invalid data by throwing a `TypeError()` instead of processing it. Developers using this library may wish to adjust their app's code slightly to better tolerate or handle this TypeError. Apps performing proper numeric data validation before sending data to this library should be mostly unaffected by this patch. The vulnerability can be mitigated in older versions by ensuring that only finite numeric data of type `Array[number]` or `number` is passed to `cumulative-distribution-function` and its `f(x)` function, respectively.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - cumulative-distribution-function is an open source npm library used which calculates statistical
    cumulative distribution function from data array of x values. In versions prior to 2.0.0 apps using this
    library on improper data may crash or go into an infinite-loop. 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`. This vulnerability enables an infinite-cpu-loop
    denial-of-service-attack on any app using npm:cumulative-distribution-function v1.0.3 or earlier if the
    attacker can supply malformed data to the library. The vulnerability could also manifest if a data source
    to be analyzed changes data type from Arrays of number (proper) to Arrays of string (invalid, but
    undetected by earlier version of the library). Users should upgrade to at least v2.0.0, or the latest
    version. Tests for several types of invalid data have been created, and version 2.0.0 has been tested to
    reject this invalid data by throwing a `TypeError()` instead of processing it. Developers using this
    library may wish to adjust their app's code slightly to better tolerate or handle this TypeError. Apps
    performing proper numeric data validation before sending data to this library should be mostly unaffected
    by this patch. The vulnerability can be mitigated in older versions by ensuring that only finite numeric
    data of type `Array[number]` or `number` is passed to `cumulative-distribution-function` and its `f(x)`
    function, respectively. (CVE-2021-29486)

ID	Name	Product	Family	Severity
410696	SCA: security update for cumulative-distribution-function (GHSA-58qp-5328-v7mh)	Tenable Cloud Security	SCA Checks	high
410696	SCA: security update for cumulative-distribution-function (GHSA-58qp-5328-v7mh)	Tenable Self-Hosted Container Security	SCA Checks	high

Detections

Analytics

CVE-2021-29486

high

Tenable Plugins

high

high