MEDIUM
In DjVuLibre 3.5.27, the sorting functionality (aka GArrayTemplate<TYPE>::sort) allows attackers to cause a denial-of-service (application crash due to an Uncontrolled Recursion) by crafting a PBM image file that is mishandled in libdjvu/GContainer.h.
https://lists.debian.org/debian-lts-announce/2019/08/msg00036.html
https://sourceforge.net/p/djvu/bugs/299/
https://sourceforge.net/p/djvu/djvulibre-git/ci/e15d51510048927f172f1bf1f27ede65907d940d/
Source: MITRE
Published: 2019-08-18
Updated: 2019-08-30
Type: CWE-400
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 2.8
Severity: MEDIUM