Use-after-free vulnerability in the pdf_load_xref function in pdf/pdf-xref.c in MuPDF allows remote attackers to cause a denial of service (crash) via a crafted PDF file.
https://security.gentoo.org/glsa/201702-12
http://www.securityfocus.com/bid/92071
http://www.debian.org/security/2016/dsa-3655
http://lists.opensuse.org/opensuse-updates/2016-08/msg00007.html
http://git.ghostscript.com/?p=mupdf.git%3Bh=fa1936405b6a84e5c9bb440912c23d532772f958