An issue was discovered in GNU LibreDWG before 0.93. Crafted input will lead to an attempted excessive memory allocation in dwg_decode_SPLINE_private in dwg.spec.
https://github.com/LibreDWG/libredwg/issues/176#issue-541977765
https://github.com/LibreDWG/libredwg/issues/176
https://github.com/LibreDWG/libredwg/compare/0.9.2...0.9.3
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00033.html