A global buffer overflow issue in the dwarf::line_table::line_table function of Libelfin v0.3 allows attackers to cause a denial of service (DOS).
A buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.