CVE-2020-5238
6.5
MEDIUM
CVSS 3.1
EPSS 0.51%
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.
How to fix CVE-2020-5238
To remediate CVE-2020-5238, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 0.2.1+ds1-1 or later
- —no fix listed
- —no fix listed
- —upgrade to 0.21.0-1 or later
Is CVE-2020-5238 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0
- from 0, < 0.2.1+ds1-1
- from 0
- from 0
- from 0, < 0.21.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |