CVE-2021-44686

HIGH

7.5

Description

calibre before 5.32.0 contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in ebooks/conversion/preprocess.py.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie12/7/2021

Derniere modification11/4/2025

Sourcenvd

Observations honeypot0

Produits affectes

calibre-ebook:calibrefedoraproject:fedora

Faiblesses (CWE)

CWE-400

References

https://bugs.launchpad.net/calibre/+bug/1951979(cve@mitre.org)

https://github.com/dwisiswant0/advisory/issues/18(cve@mitre.org)

https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7QKFPYJ23KG6WJ5NIYAM4N2NWZCLQGL/(cve@mitre.org)

https://bugs.launchpad.net/calibre/+bug/1951979(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/dwisiswant0/advisory/issues/18(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/09/msg00005.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7QKFPYJ23KG6WJ5NIYAM4N2NWZCLQGL/(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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