Integer overflow in the opj_tcd_get_decoded_tile_size function in tcd.c in OpenJPEG, as used in PDFium in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted JPEG 2000 data.