In Artifex Ghostscript through 10.05.1, ocr_begin_page in devices/gdevpdfocr.c has an integer overflow that leads to a heap-based buffer overflow in ocr_line8.
gs_lib_ctx_stash_sanitized_arg in base/gslibctx.c in Artifex Ghostscript before 10.05.1 lacks argument sanitization for the # case. A created PDF document includes its password in cleartext.