Icecast is a program that streams audio data to listeners over the Internet.
There is an out-of-bounds read error in the web interface of Icecast when handling Basic Authorization requests. This vulnerability can theorically be exploited by sending a specially crafted Authorization header to the server.
By exploiting this vulnerability, it is possible to crash the Icecast server remotely, resulting in a denial of service attack.
There is no known workaround at this time. All users are advised to upgrade to the latest available version of Icecast.
All users of Icecast should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-misc/icecast-2.0.1"
# emerge ">=net-misc/icecast-2.0.1"