cbcvebase.
CVE-2021-44686
published 2021-12-07

CVE-2021-44686: calibre before 5.32.0 contains a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service) in html_preprocess_rules in…

PriorityP337high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
4.99%
91.3th percentile
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.

Affected

7 ranges
VendorProductVersion rangeFixed in
calibre-ebookcalibre< 5.32.05.32.0
calibre-ebookcalibre>= 0 < 5.12.0+dfsg-1+deb11u35.12.0+dfsg-1+deb11u3
calibre-ebookcalibre>= 0 < 5.33.0+dfsg-15.33.0+dfsg-1
calibre-ebookcalibre>= 0 < 5.33.0+dfsg-15.33.0+dfsg-1
calibre-ebookcalibre>= 0 < 5.33.0+dfsg-15.33.0+dfsg-1
debiancalibre< calibre 5.33.0+dfsg-1 (bookworm)calibre 5.33.0+dfsg-1 (bookworm)
fedoraprojectfedora——

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv7.5HIGH
vendor_debian7.5HIGH
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