CVE-2022-34749

EPSS 0.52%
Published 25.07.2022 23:15:07
Last modified 21.11.2024 07:10:06
Source cve@mitre.org
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In mistune through 2.0.2, support of inline markup is implemented by using regular expressions that can involve a high amount of backtracking on certain edge cases. This behavior is commonly named catastrophic backtracking.

Affected products Warnungen 0 Metrics 2 CWE 1 References 6

Data is provided by the National Vulnerability Database (NVD)

Mistune Project ≫ Mistune Version <= 2.0.2

Fedoraproject ≫ Fedora Version37

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Type	Source	Score	Percentile
EPSS	FIRST.org	0.52%	0.657

CVSS Metriken
Source	Base Score	Exploit Score	Impact Score	Vector string
nvd@nist.gov	7.5	3.9	3.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-1333 Inefficient Regular Expression Complexity

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

https://github.com/lepture/mistune/commit/a6d43215132fe4f3d93f8d7e90ba83b16a0838b2

Patch

Third Party Advisory

https://github.com/lepture/mistune/releases

Third Party Advisory

Release Notes

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQHXITQ2DSBYOILKHXBSBB7PFBPZHF63/

https://nvd.nist.gov/vuln/detail/CVE-2022-34749

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2022-34749

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2022-34749

EUVD