CVE-2017-18214: Moment Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-446m-mv8f-q348
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CVSS 7.5
CWE-400
Published
Advisory Summary

CVE-2017-18214 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Moment libraries in the npm ecosystem. The issue involves regular expression denial of service in moment. Remediation is available by upgrading affected packages to version 2.19.3.

CVE-2017-18214 at a Glance

CVE Identifier CVE-2017-18214
GHSA Identifier GHSA-446m-mv8f-q348
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Moment
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-2017-18214

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

moment fixed: 2.19.3 
npm install moment@2.19.3
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 moment

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2017-18214, inspect your project dependencies using npm:

npm ls moment

Analyze the terminal output to locate any version of Moment in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.19.3), your application is affected.

Note: The npm ls moment 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 Moment, 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

Affected versions of `moment` are vulnerable to a low severity regular expression denial of service when parsing dates as strings. ## Recommendation Update to version 2.19.3 or later.

CVE-2017-18214 Affected Moment Versions

1 component(s)
Fixed Versions:
2.19.3
Product / Package Ecosystem Affected Versions Fixed Version
moment
npm/moment
npm
< 2.19.3
2.19.3

References

NVD — CVE-2017-18214 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18214
Moment Source Repository REPOSITORY
https://github.com/moment/moment/issues/4163
Moment Source Repository REPOSITORY
https://github.com/moment/moment/pull/4326
Security Fix Commit FIX COMMIT
https://github.com/moment/moment/commit/69ed9d44957fa6ab12b73d2ae29d286a857b80eb
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-446m-mv8f-q348
Moment Source Repository REPOSITORY
https://github.com/moment/moment
www.npmjs.com/advisories/532 WEB
https://www.npmjs.com/advisories/532
Moment Security Information SECURITY
https://www.tenable.com/security/tns-2019-02

Frequently Asked Questions

What is CVE-2017-18214?
CVE-2017-18214 is a security vulnerability in Moment involving Regular Expression Denial of Service in moment under CWE-400: Uncontrolled Resource Consumption.
Which Moment versions are affected?
Affected versions include releases prior to 2.19.3 across affected packages: moment.
What version fixes CVE-2017-18214?
Upgrading to 2.19.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is moment affected?
Yes, moment is affected in releases prior to 2.19.3. Upgrade your dependency to 2.19.3 or later.
What is the CVSS score of CVE-2017-18214?
CVE-2017-18214 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-2017-18214?
CVE-2017-18214 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-2017-18214?
Run the dependency tree command: 'npm ls moment'. 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-446m-mv8f-q348",
  "modified" : "2021-08-31T21:44:15Z",
  "published" : "2018-03-05T18:35:09Z",
  "aliases" : [ "CVE-2017-18214" ],
  "summary" : "Regular Expression Denial of Service in moment",
  "details" : "Affected versions of `moment` are vulnerable to a low severity regular expression denial of service when parsing dates as strings.\n\n\n## Recommendation\n\nUpdate to version 2.19.3 or later.",
  "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" : "moment"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.19.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-18214"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moment/moment/issues/4163"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moment/moment/pull/4326"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/moment/moment/commit/69ed9d44957fa6ab12b73d2ae29d286a857b80eb"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-446m-mv8f-q348"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/moment/moment"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/532"
  }, {
    "type" : "WEB",
    "url" : "https://www.tenable.com/security/tns-2019-02"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:57:13Z",
    "nvd_published_at" : "2018-03-04T21:29:00Z"
  }
}