pcapsipdump.cpp in pcapsipdump before 0.1.3 allows remote attackers to cause a denial of service (application crash) via a malformed SIP packet, which results in a NULL pointer dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/33515
http://sourceforge.net/project/shownotes.php?release_id=495646&group_id=173277