Home page logo
/

oss-sec logo oss-sec mailing list archives

Re: CVE Request -- Asterisk AST-2012-001 / Remote DoS while processing crypto line for media stream with non-existing RTP
From: Jan Lieskovsky <jlieskov () redhat com>
Date: Fri, 20 Jan 2012 17:02:25 +0100

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



  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]