CVE-2021-44686

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.

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7QKFPYJ23KG6WJ5NIYAM4N2NWZCLQGL/

https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0

https://github.com/dwisiswant0/advisory/issues/18

https://bugs.launchpad.net/calibre/+bug/1951979

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3