Heap-based buffer overflow in the loadexponentialfunc function in mupdf/pdf_function.c in MuPDF in the mupdf-20090223-win32 package, as used in SumatraPDF 0.9.3 and earlier, allows remote attackers to execute arbitrary code via a crafted PDF file. NOTE: some of these details are obtained from third party information.
https://bugs.ghostscript.com/show_bug.cgi?id=690555
http://www.vupen.com/english/advisories/2009/1186