CVE-2021-44686

Katalog CVE

CVSS 7.5 · High EPSS 5,2%

Kerentanan Uncontrolled Resource Consumption pada calibre-ebook calibre, fedoraproject fedora. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

7 Desember 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption

EPSS (30 hari)

5,2% peluang dieksploitasi; lebih tinggi dari 92,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugs.launchpad.net/calibre/+bug/1951979 exploit · issue tracking · advisory vendor
• https://github.com/dwisiswant0/advisory/issues/18 exploit · issue tracking · patch · advisory pihak ketiga
• https://github.com/kovidgoyal/calibre/compare/v5.31.1...v5.32.0 patch · advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7QKFPYJ23KG6...
• https://lists.debian.org/debian-lts-announce/2024/09/msg00005.html