ofz#3753 Integer-overflow

Change-Id: Icdcd42cc064e18686e6738b4195b6668c7d5d05e
Reviewed-on: https://gerrit.libreoffice.org/43748
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/source/gdi/dibtools.cxx

@@ -250,6 +250,9 @@ bool ImplReadDIBInfoHeader(SvStream& rIStm, DIBV5Header& rHeader, bool& bTopDown
             return false;
     }
 
+    if (rHeader.nHeight == SAL_MIN_INT32)
+        return false;
+
     if ( rHeader.nHeight < 0 )
     {
         bTopDown = true;