PostGIS 2.x before 2.3.3, as used with PostgreSQL, allows remote attackers to cause a denial of service via crafted ST_AsX3D function input, as demonstrated by an abnormal server termination for "SELECT ST_AsX3D('LINESTRING EMPTY');" because empty geometries are mishandled. References: https://trac.osgeo.org/postgis/changeset/15444 https://trac.osgeo.org/postgis/changeset/15445 https://trac.osgeo.org/postgis/ticket/3704
Created postgis tracking bugs for this issue: Affects: epel-all [bug 1669660]