[PostGIS] #5905: Server crashes when input geometries with excessive nesting are passed to ST_DumpPoints or ST_DumpSegments

[PostGIS]

#5905: Server crashes when input geometries with excessive nesting are passed to
ST_DumpPoints or ST_DumpSegments
----------------------+-------------------------------------------------
  Reporter:  dmyzl    |      Owner:  pramsey
      Type:  defect   |     Status:  new
  Priority:  blocker  |  Milestone:  PostGIS 3.5.4
 Component:  postgis  |    Version:  3.5.x
Resolution:           |   Keywords:  ST_DumpPoints ST_DumpSegments crash
----------------------+-------------------------------------------------
Changes (by robe):

 * priority:  medium => blocker

Comment:

 Confirmed on PostgreSQL 17.2 (Ubuntu 17.2-1.pgdg24.04+1) on x86_64-pc-
 linux-gnu, compiled by gcc (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, 64-bit
 POSTGIS="3.5.1 48ab069" [EXTENSION] PGSQL="170" GEOS="3.12.1-CAPI-1.18.1"
 SFCGAL="SFCGAL 1.5.1, CGAL 5.6, BOOST 1.83.0" PROJ="9.4.0
 NETWORK_ENABLED=OFF URL_ENDPOINT=https://cdn.proj.org
 USER_WRITABLE_DIRECTORY=/tmp/proj DATABASE_PATH=/usr/share/proj/proj.db"
 (compiled against PROJ 9.4.0) GDAL="GDAL 3.8.4, released 2024/02/08"
 LIBXML="2.9.14" LIBJSON="0.17" LIBPROTOBUF="1.4.1" WAGYU="0.5.0
 (Internal)" RASTER
-- 
Ticket URL: <https://trac.osgeo.org/postgis/ticket/5905#comment:3>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.