MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.Referenceshttps://bugs.ghostscript.com/show_bug.cgi?id=703791http://git.ghostscript.com/?p=mupdf.git%3Bh=f5712c9949d026e4b891b25837edd2edc166151fhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TKRMREIYUBGG2GV73CU7BJNW2Q34IP23/
