rtp.c in Asterisk Open Source 1.2.x before 1.2.37, 1.4.x before 1.4.27.1,
1.6.0.x before 1.6.0.19, and 1.6.1.x before 1.6.1.11; Business Edition
B.x.x before B.2.5.13, C.2.x.x before C.2.4.6, and C.3.x.x before C.3.2.3;
and s800i 1.3.x before 1.3.0.6 allows remote attackers to cause a denial of
service (daemon crash) via an RTP comfort noise payload with a long data
length.