Inefficient Regular Expression Complexity in marked
Résumé
Inefficient Regular Expression Complexity in marked
Description d'origine
La description telle que publiée par la source (souvent en anglais).
Impact
What kind of vulnerability is it?
Denial of service.
The regular expression block.def may cause catastrophic backtracking against some strings.
PoC is the following.
import * as marked from "marked";
marked.parse(`[x]:${' '.repeat(1500)}x ${' '.repeat(1500)} x`);
Who is impacted?
Anyone who runs untrusted markdown through marked and does not use a worker with a time limit.
Patches
Has the problem been patched?
Yes
What versions should users upgrade to?
4.0.10
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Do not run untrusted markdown through marked or run marked on a worker thread and set a reasonable time limit to prevent draining resources.
References
Are there any links users can visit to find out more?
- https://marked.js.org/using_advanced#workers
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
For more information
If you have any questions or comments about this advisory:
- Open an issue in marked
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Paquets affectés
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Debian DEBIAN-CVE-2022-21680 node-marked
- Ubuntu UBUNTU-CVE-2022-21680 node-marked
Références
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com
- web lists.fedoraproject.org