A flaw was found in htmldoc in v1.9.12. Heap buffer overflow in render_table_row(),in ps-pdf.cxx may lead to arbitrary code execution and denial of service.
https://github.com/michaelrsweet/htmldoc/issues/417
https://github.com/michaelrsweet/htmldoc/commit/0ddab26a542c74770317b622e985c52430092ba5