Icecast denial of service vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200405-10 / icecast
Release Date	May 19, 2004
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-misc/icecast	<= 2.0.0	>= 2.0.1	All supported architectures

Related bugreports: #50935

Synopsis

Icecast is vulnerable to a denial of service attack allowing remote users to crash the application.

2. Impact Information

Background

Icecast is a program that streams audio data to listeners over the Internet.

Description

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.

Impact

By exploiting this vulnerability, it is possible to crash the Icecast server remotely, resulting in a denial of service attack.

3. Resolution Information

Workaround

There is no known workaround at this time. All users are advised to upgrade to the latest available version of Icecast.

Resolution

All users of Icecast should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=net-misc/icecast-2.0.1"
# emerge ">=net-misc/icecast-2.0.1"

4. References

Updated May 19, 2004

Summary: This is a Gentoo Linux Security Advisory

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