Leptonica through 1.75.3 uses hardcoded /tmp pathnames, which might allow local users to overwrite arbitrary files or have unspecified other impact by creating files in advance or winning a race condition, as demonstrated by /tmp/junk_split_image.ps in prog/splitimage2pdf.c. References: https://lists.debian.org/debian-lts/2018/02/msg00054.html
Created leptonica tracking bugs for this issue: Affects: epel-all [bug 1549744] Affects: fedora-all [bug 1549743] Created mingw-leptonica tracking bugs for this issue: Affects: fedora-all [bug 1549745]