A Use After Free vulnerability exists in Artifex Software, Inc. MuPDF library 1.17.0-rc1 and earlier when a valid page was followed by a page with invalid pixmap dimensions, causing bander – a static – to point to previously freed memory instead of a newband_writer.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16600
Reference (s):
- http://git.ghostscript.com/?p=mupdf.git;h=96751b25462f83d6e16a9afaf8980b0c3f979c8b
- https://bugs.ghostscript.com/show_bug.cgi?id=702253