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Date: Wed, 06 Apr 2011 19:09:55 +0200
From: Jan Lieskovsky <>
To: "Steven M. Christey" <>
CC: oss-security <>,
        Jiri Popelka <>
Subject: CVE Request -- dhcp: DoS (excessive CPU use) by opening an OMAPI

Hello Josh, Steve, vendors,

   A security flaw was found in the way DHCP (Dynamic Host Configuration Protocol)
server processed remote connections when the dhcpd was configured to provide
Object Management API (OMAPI) capability. A remote attacker could use this flaw
to cause denial of service (excessive CPU use and dhcpd daemon unreachability).


Note: Though looks as minor / low severity issue, under proper configuration
       looks to be a way, how to get dhcpd completely unresponsive for further

Could you allocate a CVE id for this? (though opened for discussion if this
being more to be a bug, than a real security issue).

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

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