gs is returning an unrecoverable error when I try to convert a pdf to a png.
As a test, I ran:

/usr/bin/gs -sDEVICE=ppmraw -sOutputFile=test.ppm
13-02-OE-1MO-OE_131MO038-01-4C.pdf 
GPL Ghostscript 8.62 (2008-02-29)
Copyright (C) 2008 Artifex Software, Inc.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Processing pages 1 through 1.
Page 1
Error: /rangecheck in --run--
Operand stack:
   --nostringval--   --dict:9/18(L)--   --nostringval--
Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--  
--nostringval--   2   %stopped_push   --nostringval--   --nostringval--  
--nostringval--   false   1   %stopped_push   1889   1   3   %oparray_pop   1888
  1   3   %oparray_pop   1872   1   3   %oparray_pop   --nostringval--  
--nostringval--   2   1   1   --nostringval--   %for_pos_int_continue  
--nostringval--   --nostringval--   --nostringval--   --nostringval--  
%array_continue   --nostringval--   false   1   %stopped_push   --nostringval--
  %loop_continue   --nostringval--
Dictionary stack:
   --dict:1146/1684(ro)(G)--   --dict:1/20(G)--   --dict:75/200(L)--  
--dict:75/200(L)--   --dict:108/127(ro)(G)--   --dict:275/300(ro)(G)--  
--dict:22/25(L)--   --dict:4/6(L)--   --dict:22/40(L)--   --dict:1/1(ro)(G)--  
--dict:1/1(ro)(G)--   --dict:1/1(ro)(G)--   --dict:1/1(ro)(G)--  
--dict:1/1(ro)(G)--   --dict:21/31(L)--   --dict:1/1(ro)(G)--   --dict:5/8(L)--
  --dict:5/5(L)--   --dict:1/1(ro)(G)--   --dict:5/8(L)--   --dict:1/1(ro)(G)--
  --dict:1/1(ro)(G)--   --dict:9/13(L)--
Current allocation mode is local
GPL Ghostscript 8.62: Unrecoverable error, exit code 1

Note: I am running 8.62 with the patch to gxfill.c from bgu 689748.
This problem occurs with and without the patch.