What is the severity of CVE-2023-22483?

The severity of CVE-2023-22483 is high with a CVSS score of 7.5.

How does CVE-2023-22483 affect cmark-gfm?

CVE-2023-22483 affects cmark-gfm versions prior to 0.29.0.gfm.7 and can lead to denial of service by causing unbounded resource exhaustion.

How do I fix CVE-2023-22483?

To fix CVE-2023-22483, update cmark-gfm to version 0.29.0.gfm.7 or later.

Where can I find more information about CVE-2023-22483?

You can find more information about CVE-2023-22483 at the following reference: [GitHub Advisory](https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c).

Vulnerability/
CVE-2023-22483

high

7.5

CWE

407 400

23/1/2023

2/8/2024

CVE-2023-22483: cmark-gfm Quadratic complexity bugs may lead to a denial of service

Q: What is CVE-2023-22483?

CVE-2023-22483 is a vulnerability in cmark-gfm, GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C, that can lead to denial of service due to unbounded resource exhaustion.

First published: Mon Jan 23 2023(Updated: )

cmark-gfm is GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C. Versions prior to 0.29.0.gfm.7 are subject to several polynomial time complexity issues in cmark-gfm that may lead to unbounded resource exhaustion and subsequent denial of service. Various commands, when piped to cmark-gfm with large values, cause the running time to increase quadratically. These vulnerabilities have been patched in version 0.29.0.gfm.7.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Github Cmark-gfm	<0.29.0.gfm.7

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Reference Links

https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c

Frequently Asked Questions

What is CVE-2023-22483?
CVE-2023-22483 is a vulnerability in cmark-gfm, GitHub's fork of cmark, a CommonMark parsing and rendering library and program in C, that can lead to denial of service due to unbounded resource exhaustion.
What is the severity of CVE-2023-22483?
The severity of CVE-2023-22483 is high with a CVSS score of 7.5.
How does CVE-2023-22483 affect cmark-gfm?
CVE-2023-22483 affects cmark-gfm versions prior to 0.29.0.gfm.7 and can lead to denial of service by causing unbounded resource exhaustion.
How do I fix CVE-2023-22483?
To fix CVE-2023-22483, update cmark-gfm to version 0.29.0.gfm.7 or later.
Where can I find more information about CVE-2023-22483?
You can find more information about CVE-2023-22483 at the following reference: [GitHub Advisory](https://github.com/github/cmark-gfm/security/advisories/GHSA-29g3-96g3-jg6c).

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