From owner-freebsd-stable Thu Jan 20 16:38:42 2000 Delivered-To: freebsd-stable@freebsd.org Received: from lariat.lariat.org (lariat.lariat.org [206.100.185.2]) by hub.freebsd.org (Postfix) with ESMTP id 23818153FA; Thu, 20 Jan 2000 16:38:34 -0800 (PST) (envelope-from brett@lariat.org) Received: from workhorse (IDENT:ppp0.lariat.org@lariat.lariat.org [206.100.185.2]) by lariat.lariat.org (8.9.3/8.9.3) with ESMTP id RAA11362; Thu, 20 Jan 2000 17:38:15 -0700 (MST) Message-Id: <4.2.2.20000120173540.01a26100@localhost> X-Sender: brett@localhost X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.2 Date: Thu, 20 Jan 2000 17:38:13 -0700 To: Warner Losh From: Brett Glass Subject: Re: bugtraq posts: stream.c - new FreeBSD exploit? Cc: jamiE rishaw - master e*tard , Tom , Mike Tancsa , freebsd-security@FreeBSD.ORG, freebsd-stable@FreeBSD.ORG, security-officer@FreeBSD.ORG In-Reply-To: <200001210034.RAA06762@harmony.village.org> References: <4.2.2.20000120172607.0198f1e0@localhost> <3.0.5.32.20000120152818.01d7fa40@staff.sentex.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hmmm. I haven't started at the stack to see if this is feasible, but can't the code that implements IPFW's "established" keyword be used to discard the ACK if it isn't associated with an active session? --Brett At 05:34 PM 1/20/2000 , Warner Losh wrote: >It is a remote exploit. > >Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message