CVE-2020-26289: Date and time Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-r92x-f52r-x54g
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CVSS 7.5
CWE-400
Published
Advisory Summary

CVE-2020-26289 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Date and time libraries in the npm ecosystem. The issue involves regular expression denial of service (redos). Remediation is available by upgrading affected packages to version 0.14.2.

CVE-2020-26289 at a Glance

CVE Identifier CVE-2020-26289
GHSA Identifier GHSA-r92x-f52r-x54g
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Date and time
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2020-26289

To remediate this vulnerability, upgrade all affected Date and time dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

date-and-time fixed: 0.14.2 
npm install date-and-time@0.14.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls date-and-time

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-26289, inspect your project dependencies using npm:

npm ls date-and-time

Analyze the terminal output to locate any version of Date and time in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.14.2), your application is affected.

Note: The npm ls date-and-time command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Date and time, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

date-and-time is an npm package for manipulating date and time. In date-and-time before version 0.14.2, there a regular expression involved in parsing which can be exploited to to cause a denial of service. This is fixed in version 0.14.2.

CVE-2020-26289 Affected Date and time Versions

1 component(s)
Fixed Versions:
0.14.2
Product / Package Ecosystem Affected Versions Fixed Version
date-and-time
npm/date-and-time
npm
< 0.14.2
0.14.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/knowledgecode/date-and-time/security/advisories/GHSA-r92x-f52r-x54g
NVD — CVE-2020-26289 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26289
Security Fix Commit FIX COMMIT
https://github.com/knowledgecode/date-and-time/commit/9e4b501eacddccc8b1f559fb414f48472ee17c2a
www.npmjs.com/advisories/1592 WEB
https://www.npmjs.com/advisories/1592
www.npmjs.com/package/date-and-ti... WEB
https://www.npmjs.com/package/date-and-time

Frequently Asked Questions

What is CVE-2020-26289?
CVE-2020-26289 is a security vulnerability in Date and time involving regular expression denial of service (ReDoS) under CWE-400: Uncontrolled Resource Consumption.
Which Date and time versions are affected?
Affected versions include releases prior to 0.14.2 across affected packages: date-and-time.
What version fixes CVE-2020-26289?
Upgrading to 0.14.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is date-and-time affected?
Yes, date-and-time is affected in releases prior to 0.14.2. Upgrade your dependency to 0.14.2 or later.
What is the CVSS score of CVE-2020-26289?
CVE-2020-26289 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2020-26289?
CVE-2020-26289 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check npm dependencies for CVE-2020-26289?
Run the dependency tree command: 'npm ls date-and-time'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-r92x-f52r-x54g",
  "modified" : "2021-01-07T22:33:12Z",
  "published" : "2020-12-24T20:49:02Z",
  "aliases" : [ "CVE-2020-26289" ],
  "summary" : "regular expression denial of service (ReDoS)",
  "details" : "date-and-time is an npm package for manipulating date and time. In date-and-time before version 0.14.2, there a regular expression involved in parsing which can be exploited to to cause a denial of service. This is fixed in version 0.14.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "date-and-time"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.14.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/knowledgecode/date-and-time/security/advisories/GHSA-r92x-f52r-x54g"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-26289"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/knowledgecode/date-and-time/commit/9e4b501eacddccc8b1f559fb414f48472ee17c2a"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/1592"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/date-and-time"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-12-24T20:31:22Z",
    "nvd_published_at" : "2020-12-28T19:15:00Z"
  }
}