CVE-2020-5238
6.5 · MEDIUMOverview
CVE-2020-5238 is a medium-severity vulnerability affecting github_flavored_markdown_project github_flavored_markdown. It was published on July 1, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
The table extension in GitHub Flavored Markdown before version 0.29.0.gfm.1 takes O(n * n) time to parse certain inputs. An attacker could craft a markdown table which would take an unreasonably long time to process, causing a denial of service. This issue does not affect the upstream cmark project. The issue has been fixed in version 0.29.0.gfm.1.
Remediation
Check the references section for vendor advisories and patches from github_flavored_markdown_project. Update github_flavored_markdown to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| github_flavored_markdown_project | github_flavored_markdown | >= 0, < 0.29.0.gfm.1 | Affected |
References
Frequently Asked Questions
What is CVE-2020-5238?
CVE-2020-5238 is a medium-severity vulnerability affecting github_flavored_markdown_project github_flavored_markdown. It was published on July 1, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2020-5238?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-5238?
Check the references section for vendor advisories and patches from github_flavored_markdown_project. Update github_flavored_markdown to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-5238?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-5238 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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