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Date: Fri, 25 Jun 2010 12:49:29 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: Lennart Poettering <lennart@...ttering.net>, coley <coley@...re.org>
Subject: Re: CVE Request: avahi DoS
Please use CVE-2010-2244
Thanks.
--
JB
----- "Ludwig Nussel" <ludwig.nussel@...e.de> wrote:
> Hi,
>
> avahi crashes if it receives a bad packet (broken checksum)
> immediately followed by a good packet. In that case FIONREAD returns
> zero size for the bad packet. avahi doesn't consider that an error
> and calls recvmsg() which succeeds and returns the good packet which
> has a non-zero length of course. This discrepancy causes an assert()
> to fail and avahi terminates.
>
> The problem was acknowledged by upstream (Lennart) but no fix
> was commited so far. I've attached my patch proposal.
>
> cu
> Ludwig
>
> --
> (o_ Ludwig Nussel
> //\
> V_/_ http://www.suse.de/
> SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nuernberg)
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