This script is Copyright (C) 2014-2015 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
The Asterisk project reports :
When handling a WebSocket frame the res_http_websocket module
dynamically changes the size of the memory used to allow the provided
payload to fit. If a payload length of zero was received the code
would incorrectly attempt to resize to zero. This operation would
succeed and end up freeing the memory but be treated as a failure.
When the session was subsequently torn down this memory would get
freed yet again causing a crash.
Users of the WebSocket functionality also did not take into account
that provided text frames are not guaranteed to be NULL terminated.
This has been fixed in chan_sip and chan_pjsip in the applicable
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 5.0