In libosip2 in GNU oSIP 4.1.0, a malformed SIP message can lead to a heap buffer overflow in the osip_body_to_str() function defined in osipparser2/osip_body.c, resulting in a remote DoS.
https://savannah.gnu.org/support/index.php?109132
https://euvd.enisa.europa.eu/vulnerability/EUVD-2016-1510