Empty IAX2 packet causes memory content leak and potential DoS condition because of missed terminating NULL byte.
CVE:
CVE-2007-2488 (The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss of transmitted data, and possibly obtain sensitive information (memory contents) or cause a denial of service (application crash), by sending a frame that lacks a 0 byte.)
