icecast: denial of service

CVE-2015-3026 (denial of service):

The bug can only be triggered if "stream_auth" is being used.
This means, that all installations that use a default configuration are
NOT affected.The default configuration only uses <source-password>.
Neither are simple mountpoints affected that use <password>.
A workaround, if installing an updated package is not possible, is to
disable "stream_auth"and use <password> instead.
As far as we understand the bug only leads to a simple remote denial of
service. The underlying issue is a null pointer dereference. For
clarity: No remote code execution should be possible, server just
segfaults.