Belledonne Belle-sip Denial of Service Vulnerability

Belledonne Belle-sip is a library from the French company Belledonne that implements the transport, transaction and conversation layers of SIP (RFC 3261). security vulnerabilities exist in versions prior to Belledonne Belle sip 5.0.20, which can be exploited by attackers to crash applications such as Linphone via invalid From headers in sip messages (request URI without parameters) to cause applications such as Linphone to crash.