When handling DTLS-SRTP for media setup, FreeSWITCH version 1.10.10 is susceptible to denial of service due to a race condition in the hello handshake phase of the DTLS protocol. This attack can be done continuously, thus denying new DTLS-SRTP encrypted calls during the attack.
42111d854609afb4221ff75af6db4e27c366baa1bf5886242bf637a8ab822f76