vulnerability
Red Hat: CVE-2020-5238: CVE-2020-5238 cmark-gfm: Exponential time to parse certain inputs could lead to DoS (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:N/I:N/A:P) | Jul 1, 2020 | Dec 15, 2023 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Jul 1, 2020
Added
Dec 15, 2023
Modified
Mar 27, 2026
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.
Solutions
redhat-upgrade-pandocredhat-upgrade-pandoc-common
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