Artifex MuPDF before 1.18.0 has a heap based buffer over-write in tiff_expand_colormap() function when parsing TIFF files allowing attackers to cause a denial of service.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-19609
Reference (s):
- http://git.ghostscript.com/?p=mupdf.git;h=b7892cdc7fae62aa57d63ae62144e1f11b5f9275
- https://bugs.ghostscript.com/show_bug.cgi?id=701176
- https://bugs.ghostscript.com/show_bug.cgi?id=703076
- MLIST:[debian-lts-announce] 20210923 [SECURITY] [DLA 2765-1] mupdf security update
- URL: https://lists.debian.org/debian-lts-announce/2021/09/msg00013.html

