RE: SYMSA-2007-007: Palm OS Treo Smartphone Denial of Service

        When I tested this on my Treo over Verizon's network, only one packet with the prescribed parameters was needed to force a soft reset of my phone rather than the flood described in CVE-2003-0293. When I notified Verizon of this, they were completely unaware of this vulnerability -- well, at least their help desk people were. I'm hoping they'll take steps to filter this kind of traffic on their network.

        On a side note, when I was testing this vulnerability, I tried varying the size of the ICMP packet. Strangely enough, I got no response if the packet was of size 1469 bytes, or 1471 bytes. There must be something special about 1470 byte ICMP packets. Anyone have any ideas?

Mike

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Michael C Bednar
Katz IT Services
319 Mervis Hall
University of Pittsburgh
Pittsburgh, PA 15260

-----Original Message-----

From: Stuart Moore [mailto:smoore.bugtraq@securityglobal.net] Sent: Monday, August 20, 2007 16:13
To: research@symantec.com; bugtraq@securityfocus.com Subject: Re: SYMSA-2007-007: Palm OS Treo Smartphone Denial of Service

Hi. Is this fundamentally different than the previously reported PalmOS

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ICMP denial of service bug (CVE-2003-0293)?

Thanks,

Stuart Received on Tue Aug 21 12:43:41 2007