SIP Witch Denial Of Service Vulnerability

Summary
This host is installed with SIP Witch and is prone to denial of service vulnerability.
Impact
Successful exploitation will allow remote attacker to cause denial of service resulting in a loss of availability. Impact Level: Application
Solution
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
Flaw is due to NULL pointer dereference in osip_lost.c of libosip2 library.
Affected
SIP Witch 0.7.4 with libosip2-4.0.0
References