CVE-2018-1107: Is my json valid Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-4hpf-3wq7-5rpr
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CVSS 5.3
CWE-400
Published
Advisory Summary

CVE-2018-1107 is a MODERATE (CVSS 5.3) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Is my json valid libraries in the npm ecosystem. The issue involves regular expression deinal of service (redos) in is-my-json-valid. Remediation is available by upgrading affected packages to version 2.17.2, 1.4.1.

CVE-2018-1107 at a Glance

CVE Identifier CVE-2018-1107
GHSA Identifier GHSA-4hpf-3wq7-5rpr
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Is my json valid
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 5.3

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:L).

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 Low (A:L)

How to Fix CVE-2018-1107

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

is-my-json-valid fixed: 2.17.2 
npm install is-my-json-valid@2.17.2
is-my-json-valid fixed: 1.4.1 
npm install is-my-json-valid@1.4.1
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 is-my-json-valid

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-1107, inspect your project dependencies using npm:

npm ls is-my-json-valid

Analyze the terminal output to locate any version of Is my json valid in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.17.2), your application is affected.

Note: The npm ls is-my-json-valid 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 Is my json valid, 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

It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.

CVE-2018-1107 Affected Is my json valid Versions

2 component(s)
Fixed Versions:
2.17.21.4.1
Product / Package Ecosystem Affected Versions Fixed Version
is-my-json-valid
npm/is-my-json-valid
npm
≥ 2.0.0
< 2.17.2
2.17.2
is-my-json-valid
npm/is-my-json-valid
npm
< 1.4.1
1.4.1

References

NVD — CVE-2018-1107 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1107
Is my json valid Source Repository REPOSITORY
https://github.com/mafintosh/is-my-json-valid/pull/159
Security Fix Commit FIX COMMIT
https://github.com/mafintosh/is-my-json-valid/commit/b3051b277f7caa08cd2edc6f74f50aeda65d2976
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1546357
snyk.io/vuln/npm:is-my-json... WEB
https://snyk.io/vuln/npm:is-my-json-valid:20180214

Frequently Asked Questions

What is CVE-2018-1107?
CVE-2018-1107 is a security vulnerability in Is my json valid involving Regular expression deinal of service (ReDoS) in is-my-json-valid under CWE-400: Uncontrolled Resource Consumption.
Which Is my json valid versions are affected?
Affected versions include releases prior to 2.17.2, 1.4.1 across affected packages: is-my-json-valid.
What version fixes CVE-2018-1107?
Upgrading to 2.17.2, 1.4.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is is-my-json-valid affected?
Yes, is-my-json-valid is affected in releases prior to 2.17.2, 1.4.1. Upgrade your dependency to 2.17.2, 1.4.1 or later.
What is the CVSS score of CVE-2018-1107?
CVE-2018-1107 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2018-1107?
CVE-2018-1107 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-2018-1107?
Run the dependency tree command: 'npm ls is-my-json-valid'. 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-4hpf-3wq7-5rpr",
  "modified" : "2021-04-23T20:09:28Z",
  "published" : "2022-01-06T20:44:07Z",
  "aliases" : [ "CVE-2018-1107" ],
  "summary" : "Regular expression deinal of service (ReDoS) in is-my-json-valid",
  "details" : "It was discovered that the is-my-json-valid JavaScript library used an inefficient regular expression to validate JSON fields defined to have email format. A specially crafted JSON file could cause it to consume an excessive amount of CPU time when validated.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "is-my-json-valid"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.17.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "is-my-json-valid"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1107"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mafintosh/is-my-json-valid/pull/159"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mafintosh/is-my-json-valid/commit/b3051b277f7caa08cd2edc6f74f50aeda65d2976"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1546357"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/npm:is-my-json-valid:20180214"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-03-31T21:45:17Z",
    "nvd_published_at" : "2021-03-30T02:15:00Z"
  }
}