Raptor Rdf Syntax Library Security Vulnerabilities

CVE-2017-18926

raptor_xml_writer_start_element_common in raptor_xml_writer.c in Raptor RDF Syntax Library 2.0.15 miscalculates the maximum nspace declarations for the XML writer, leading to heap-based buffer overflows (sometimes seen in raptor_qname_format_as_xml).

CVE-2020-25713

A malformed input file can lead to a segfault due to an out of bounds array access in raptor_xml_writer_start_element_common.