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  5. CVE-2021-43308

CVE-2021-43308: Regular expression denial of service in markdown-link-extractor

June 3, 2022

An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the markdown-link-extractor npm package, when an attacker is able to supply arbitrary input to the module’s exported function

References

  • github.com/advisories/GHSA-mmh6-m7v9-5956
  • nvd.nist.gov/vuln/detail/CVE-2021-43308
  • research.jfrog.com/vulnerabilities/markdown-link-extractor-redos-xray-211350/

Code Behaviors & Features

Detect and mitigate CVE-2021-43308 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 3.0.2, all versions starting from 4.0.0 before 4.0.1

Fixed versions

  • 3.0.2
  • 4.0.1

Solution

Upgrade to versions 3.0.2, 4.0.1 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Source file

npm/markdown-link-extractor/CVE-2021-43308.yml

Spotted a mistake? Edit the file on GitLab.

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