Re: CVE Request -- Asterisk AST-2012-001 / Remote DoS while processing crypto line for media stream with non-existing RTP

[Jan Lieskovsky <jlieskov () redhat com>]

On 01/20/2012 04:55 PM, Steven M. Christey wrote:
> CVE-2012-0885 was already assigned to AST-2012-001 based on a request from the upstream vendor. They
> probably updated their advisory since your initial request:
>
> http://downloads.asterisk.org/pub/security/AST-2012-001.html

Thanks for your prompt reply, Steve. It has been truly updated
already (checked by forcing Firefox to renew it's cached).

Thank you, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

> - Steve
>
>
> On Fri, 20 Jan 2012, Jan Lieskovsky wrote:
>
> > Hello Kurt, Steve, vendors,
> >
> > a denial of service flaw was found in the way asterisk processed certain
> > requests to negotiate secure video stream, when the res_srtp Asterisk module
> > has been loaded and video support has not been enabled. A remote attacker could
> > provide a specially-crafted media stream negotiation request, which once
> > processed by Asterisk would lead to asterisk daemon crash by processing crypto
> > line for such media stream.
> >
> > References:
> > [1] http://downloads.asterisk.org/pub/security/AST-2012-001.html
> > [2] https://issues.asterisk.org/jira/browse/ASTERISK-19202
> > [3] https://bugzilla.redhat.com/show_bug.cgi?id=783487
> >
> > Upstream patch against the v1.8.x branch:
> > [4] http://downloads.asterisk.org/pub/security/AST-2012-001-1.8.diff
> >
> > Upstream patch against the v1.10.x branch:
> > [5] http://downloads.asterisk.org/pub/security/AST-2012-001-10.diff
> >
> > Could you allocate a CVE identifier for this?
> >
> > Thank you && Regards, Jan.
> > --
> > Jan iankko Lieskovsky / Red Hat Security Response Team