CVE-2023-39619: Node email check Inefficient Regular Expression Complexity Vulnerability

HIGH
Advisory Identifier: GHSA-9242-6p36-6256
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CVSS 7.5
CWE-1333
Published
Advisory Summary

CVE-2023-39619 is a HIGH (CVSS 7.5) inefficient regular expression complexity vulnerability (CWE-1333: Inefficient Regular Expression Complexity) affecting Node email check libraries in the npm ecosystem. The issue involves inefficient regular expression complexity in node-email-check. Remediation is available in the latest vendor maintenance releases.

CVE-2023-39619 at a Glance

CVE Identifier CVE-2023-39619
GHSA Identifier GHSA-9242-6p36-6256
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-1333: Inefficient Regular Expression Complexity
Affected Product Node email check
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-2023-39619

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

node-email-check fixed: Latest secure release 
npm install node-email-check@Latest secure release
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 node-email-check

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2023-39619, inspect your project dependencies using npm:

npm ls node-email-check

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

Note: The npm ls node-email-check 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-1333: Inefficient Regular Expression Complexity, where the product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential. In Node email check, 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

ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.

CVE-2023-39619 Affected Node email check Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
node-email-check
npm/node-email-check
npm
≤ 1.0.4

References

NVD — CVE-2023-39619 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-39619
Node email check Source Repository REPOSITORY
https://github.com/teomantuncer/node-email-check/issues/2
Node email check Source Repository REPOSITORY
https://gist.github.com/6en6ar/712a4c1eab0324f15e09232c77ea08f8
Node email check Source Repository REPOSITORY
https://github.com/teomantuncer/node-email-check
www.npmjs.com/package/node-email-... WEB
https://www.npmjs.com/package/node-email-check

Frequently Asked Questions

What is CVE-2023-39619?
CVE-2023-39619 is a security vulnerability in Node email check involving Inefficient Regular Expression Complexity in node-email-check under CWE-1333: Inefficient Regular Expression Complexity.
Which Node email check versions are affected?
Affected versions include releases prior to current release patches across affected packages: node-email-check.
What version fixes CVE-2023-39619?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is node-email-check affected?
Yes, node-email-check is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2023-39619?
CVE-2023-39619 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-2023-39619?
CVE-2023-39619 is classified under CWE-1333: Inefficient Regular Expression Complexity (The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.).
How can I check npm dependencies for CVE-2023-39619?
Run the dependency tree command: 'npm ls node-email-check'. 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-9242-6p36-6256",
  "modified" : "2023-10-30T19:58:53Z",
  "published" : "2023-10-25T18:32:22Z",
  "aliases" : [ "CVE-2023-39619" ],
  "summary" : "Inefficient Regular Expression Complexity in node-email-check",
  "details" : "ReDos in NPMJS Node Email Check v.1.0.4 allows an attacker to cause a denial of service via a crafted string to the scpSyntax component.\n\n",
  "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" : "node-email-check"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.0.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-39619"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/teomantuncer/node-email-check/issues/2"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/6en6ar/712a4c1eab0324f15e09232c77ea08f8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/teomantuncer/node-email-check"
  }, {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/package/node-email-check"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1333" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-30T19:58:53Z",
    "nvd_published_at" : "2023-10-25T18:17:29Z"
  }
}