Icecast 1.3.7, and other versions before 1.3.11 with HTTP server file streaming support enabled allows remote attackers to cause a denial of service (crash) via a URL that ends in . (dot), / (forward slash), or \ (backward slash).
https://exchange.xforce.ibmcloud.com/vulnerabilities/6751
http://www.redhat.com/support/errata/RHSA-2002-063.html
http://www.redhat.com/support/errata/RHSA-2001-105.html
http://www.icecast.org/releases/icecast-1.3.11.tar.gz