VDB
CVE-2021-44686
CVE-2021-44686
PUBLISHED
CVSS 5 MEDIUM
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.
EPSS 0.41% · 61.9th percentile
Risk Scores
CVSS 2.0
5
EPSS Score
0.41%
61.9th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | * |
| fedoraproject | fedora | 34 |
| calibre-ebook | calibre | 0 |
Timeline
- Dec 6, 2021 CVE Published
- Dec 7, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 31, 2022 EPSS Score
- Mar 26, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 20, 2022 EPSS Score
- Jul 13, 2022 EPSS Score
- Sep 7, 2022 EPSS Score
- Dec 25, 2022 EPSS Score
- Feb 18, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
References
- https://bugs.launchpad.net/calibre/+bug/1951979 url
- https://github.com/dwisiswant0/advisory/issues/18 url
- https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0 url
- FEDORA-2021-e42fadbcc3 vendor-advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00005.html url
- https://nvd.nist.gov/vuln/detail/CVE-2021-44686 advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W7QKFPYJ23KG6WJ5NIYAM4N2NWZCLQGL url