Red Hat Bugzilla – Bug 5538
Kernel 2.2.x ISN vulnerability
Last modified: 2008-05-01 11:37:52 EDT
Thought this would have been fixed by now..oh well...Here goes (hope the formatting doesnt kill it) : A weakness within the TCP stack in Linux 2.2.x kernels has been discovered. The vulnerability makes it possible to "blind-spoof" TCP connections. It`s therefore possible for an attacker to initiate a TCP connection from an arbitrary non existing or unresponding IP source address, exploiting IP address based access control mechanisms. Linux 2.0.x kernels were tested against this attack and found not to be vulnerable in any case. The vulnerability : http://www.geocrawler.com/mail/msg.php3?msg_id=2681806&list=35 The patches (1st fixes typo, 2nd fixes vulnerability): http://www.geocrawler.com/mail/msg.php3?msg_id=2681922&list=35 http://www.geocrawler.com/mail/msg.php3?msg_id=2682323&list=35 Check 6.1 for it too...Also can we now have doom in X Games ? Dooms source is now GPLed.
This is fixed in the latest kernels in 6.1/Raw Hide. As for Doom, while the source is available, IIRC, Id specfically said that commercial redistribution was prohibited.