linux-kernel - Denial of Service in all kernels 2.6.x

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Message-ID: <547a31ab0707050143n3d3df4b5k7c0135c3063fff3e@mail.gmail.com>
Date:	Thu, 5 Jul 2007 10:43:37 +0200
From:	Croulder <croulder@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Denial of Service in all kernels 2.6.x

Linux has the same problem that other OS:
"Multiple Vendor TCP Timestamp PAWS Remote Denial Of Service
Vulnerability"  published in 2005 by Noritoshi Demizu

If i send a SYN packet with high timestamp legitime user can not
establish a connection with the victim server.

Kernel Tested : 2.6.21.5 , 2.6.11.12

http://www.securityfocus.com/bid/13676/info

Temporal solution: echo "0" > /proc/sys/net/ipv4/tcp_timestamp

Final solution: ???
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