Debian Linux Security Advisory 4999-1 - Multiple vulnerabilities have been discovered in Asterisk, an open source PBX and telephony toolkit, which may result in denial of service.
32e0f410aa33b5e48c93e8bfabe77026431d522a47de00eb87184616a5207ff1
If the IAX2 channel driver receives a packet that contains an unsupported media format it can cause a crash to occur in Asterisk.
4b4013dde28ebd85bf26ab9c3fd8cf604c2de2c7aacef317b575436966ddf0a0