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Date: Fri, 20 Jan 2012 16:46:42 +0100
From: Jan Lieskovsky <>
To: "Steven M. Christey" <>
CC:, Joshua Colp <>
Subject: CVE Request -- Asterisk AST-2012-001 / Remote DoS while processing
 crypto line for media stream with non-existing RTP

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.


Upstream patch against the v1.8.x branch:

Upstream patch against the v1.10.x branch:

Could you allocate a CVE identifier for this?

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

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