[postgis-devel] [PostGIS] #417: crash in parser

PostGIS trac at osgeo.org
Mon Mar 8 16:18:37 PST 2010


#417: crash in parser
----------------------+-----------------------------------------------------
  Reporter:  strk     |       Owner:  pramsey      
      Type:  defect   |      Status:  new          
  Priority:  blocker  |   Milestone:  PostGIS 1.5.1
 Component:  postgis  |     Version:  trunk        
Resolution:           |    Keywords:               
----------------------+-----------------------------------------------------
Comment (by pramsey):

 Fun, this looks like something I was just thinking about while writing a
 new WKB reader: what if the user feeds in WKB that doesn't match the
 contents of the memory segment? (Like claiming there are 5 coordinates
 when there are 0. You can then get the reader to walk merrily off the end
 of the memory segment.) Fixing this in the current parser looks very
 unpleasant. It is the unpleasantness of the current parse/unparse code
 that is actually driving me to write new ones, in fact.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/417#comment:6>
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