TITLE:
Icecast Basic Authorization Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA11578

VERIFY ADVISORY:
http://secunia.com/advisories/11578/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Icecast 2.x

DESCRIPTION:
ned has discovered a vulnerability in Icecast, which can be exploited
by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an out-of-bounds read error within
the web interface when handling Basic Authorization requests. This
can be exploited to crash the application by passing a specially
crafted, overly long string (about 3000 bytes) in a "Authorization:"
header.

The vulnerability has been confirmed in version 2.0.0 for Windows.
Other versions may also be affected.

SOLUTION:
Filter access to the service (default port 8000/TCP) in a firewall or
proxy server.

PROVIDED AND/OR DISCOVERED BY:
ned

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------