CVE-2020-5238 (Medium) detected in commonmarkerv0.17.13 - autoclosed

[mend-bolt-for-github[bot]]

CVE-2020-5238 - Medium Severity Vulnerability

Vulnerable Library - commonmarkerv0.17.13

Ruby wrapper for libcmark (CommonMark parser)

Library home page: https://github.com/gjtorikian/commonmarker.git

Found in HEAD commit: 610bafc337c97d3a77a49e5a5883996ed444f04a

Found in base branch: master

Vulnerable Source Files (1)

/_vendor/bundle/ruby/2.5.0/gems/commonmarker-0.17.13/ext/commonmarker/table.c

Vulnerability Details

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.

Publish Date: 2020-07-01

URL: CVE-2020-5238

CVSS 3 Score Details (6.5)

Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://github.com/github/cmark-gfm/security/advisories/GHSA-7gc6-9qr5-hc85

Release Date: 2020-10-06

Fix Resolution: 0.29.0.gfm.1

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[mend-bolt-for-github[bot]]

:heavy_check_mark: This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.