Incorrect Regular Expression in marked - CVE-2022-21680
Published: May 12, 2023
Vulnerability identifier: #VU76061
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-21680
CWE-ID: CWE-185
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Marked
Affected software:
marked
marked
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to regular expression `block.def` may cause catastrophic backtracking against some strings. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.
How to mitigate CVE-2022-21680
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..
Sources
- https://github.com/markedjs/marked/security/advisories/GHSA-rrrm-qjm4-v8hf
- https://github.com/markedjs/marked/commit/c4a3ccd344b6929afa8a1d50ac54a721e57012c0
- https://github.com/markedjs/marked/releases/tag/v4.0.10
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AIXDMC3CSHYW3YWVSQOXAWLUYQHAO5UX/