In Artifex MuPDF 1.12.0 and earlier, multiple reachable assertions in the PDF parser allow an attacker to cause a denial of service (assert crash) via a crafted file.
git.ghostscript.com/?p=mupdf.git%3Ba=commitdiff%3Bh=71ceebcf56e682504da22c4035b39a2d451e8ffd%3Bhp=7f82c01523505052615492f8e220f4348ba46995
git.ghostscript.com/?p=mupdf.git%3Ba=commitdiff%3Bh=8a3257b01faa899dd9b5e35c6bb3403cd709c371%3Bhp=de39f005f12a1afc6973c1f5cec362d6545f70cb
git.ghostscript.com/?p=mupdf.git%3Ba=commitdiff%3Bh=b2e7d38e845c7d4922d05e6e41f3a2dc1bc1b14a%3Bhp=f51836b9732c38d945b87fda0770009a77ba680c
bugs.chromium.org/p/oss-fuzz/issues/detail?id=5490
bugs.chromium.org/p/oss-fuzz/issues/detail?id=5501
bugs.chromium.org/p/oss-fuzz/issues/detail?id=5503
bugs.chromium.org/p/oss-fuzz/issues/detail?id=5511
bugs.chromium.org/p/oss-fuzz/issues/detail?id=5564
bugs.ghostscript.com/show_bug.cgi?id=698882
bugs.ghostscript.com/show_bug.cgi?id=698886
bugs.ghostscript.com/show_bug.cgi?id=698888
bugs.ghostscript.com/show_bug.cgi?id=698890
security.gentoo.org/glsa/201811-15
www.debian.org/security/2018/dsa-4334