From owner-freebsd-security Sun Jul 22 14:35:36 2001 Delivered-To: freebsd-security@freebsd.org Received: from light.imasy.or.jp (light.imasy.or.jp [202.227.24.4]) by hub.freebsd.org (Postfix) with ESMTP id 2C45337B401; Sun, 22 Jul 2001 14:35:31 -0700 (PDT) (envelope-from ume@mahoroba.org) Received: (from uucp@localhost) by light.imasy.or.jp (8.11.3+3.4W/8.11.3/light/smtpfeed 1.12) with UUCP id f6MLZSD19667; Mon, 23 Jul 2001 06:35:28 +0900 (JST) (envelope-from ume@mahoroba.org) Received: from peace.mahoroba.org (IDENT:JbIzFlZwvxt8C3QfJr2Fb6uDplSprM2BzW8r0bScfSHFhh1d38GBKheyjGHbGGOv@peace.mahoroba.org [2001:200:301:0:200:f8ff:fe05:3eae]) (authenticated as ume with CRAM-MD5) by mail.mahoroba.org (8.11.4/8.11.4/chaos) with ESMTP/inet6 id f6MLYwL28854; Mon, 23 Jul 2001 06:34:58 +0900 (JST) (envelope-from ume@mahoroba.org) Date: Mon, 23 Jul 2001 06:34:58 +0900 (JST) Message-Id: <20010723.063458.35714423.ume@mahoroba.org> To: aschneid@mail.slc.edu Cc: dillon@earth.backplane.com, brian@Awfulhak.org, ras@e-gerbil.net, roam@orbitel.bg, freebsd-security@FreeBSD.ORG, freebsd-gnats-submit@FreeBSD.ORG Subject: Re: bin/22595: telnetd tricked into using arbitrary peer ip From: Hajimu UMEMOTO In-Reply-To: <20010722172232.A94306@mail.slc.edu> References: <20010723.053051.88524825.ume@mahoroba.org> <200107222117.f6MLHwr11669@earth.backplane.com> <20010722172232.A94306@mail.slc.edu> X-Mailer: xcite1.38> Mew version 1.95b119 on Emacs 20.7 / Mule 4.0 =?iso-2022-jp?B?KBskQjJWMWMbKEIp?= X-PGP-Public-Key: http://www.imasy.org/~ume/publickey.asc X-PGP-Fingerprint: 6B 0C 53 FC 5D D0 37 91 05 D0 B3 EF 36 9B 6A BC X-URL: http://www.imasy.org/~ume/ X-Operating-System: FreeBSD 5.0-CURRENT Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-security@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >>>>> On Sun, 22 Jul 2001 17:22:32 -0400 >>>>> Anthony Schneider said: aschneid> 16 bytes. It's a binary form. We need 40 bytes for global address. To save site-local or link-local address, we need more space for scope identifier. I believe the length of scope identifier is not defined and system specific. global address: 1234567890123456789012345678901234567890 NNNN:NNNN:NNNN:NNNN:NNNN:NNNN:NNNN:NNNN\n scoped address: 1234567890123456789012345678901234567890 NNNN:NNNN:NNNN:NNNN:NNNN:NNNN:NNNN:NNNN%fxp0\n There is one more consideration. `:' is conflict with X. I have no particular idea to solve this problem. Enclosing IPv6 address with `[' and `]' doesn't help without changing X side. -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan ume@mahoroba.org ume@bisd.hitachi.co.jp ume@{,jp.}FreeBSD.org http://www.imasy.org/~ume/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-security" in the body of the message