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- djm@cvs.openbsd.org 2006/12/12 03:58:42 

[channels.c compat.c compat.h]
     bz #1019: some ssh.com versions apparently can't cope with the
     remote port forwarding bind_address being a hostname, so send
     them an address for cases where they are not explicitly
     specified (wildcard or localhost bind).  reported by daveroth AT
     acm.org; ok dtucker@ deraadt@
This commit is contained in:
Damien Miller 2007-01-05 16:26:45 +11:00
parent c0367fb0d2
commit 1ec462658e
4 changed files with 26 additions and 10 deletions
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9
ChangeLog
View File

@ -10,6 +10,13 @@
- markus@cvs.openbsd.org 2006/12/11 21:25:46
[ssh-keygen.1 ssh.1]
add rfc 4716 (public key format); ok jmc
- djm@cvs.openbsd.org 2006/12/12 03:58:42
[channels.c compat.c compat.h]
bz #1019: some ssh.com versions apparently can't cope with the
remote port forwarding bind_address being a hostname, so send
them an address for cases where they are not explicitly
specified (wildcard or localhost bind). reported by daveroth AT
acm.org; ok dtucker@ deraadt@
20061205
- (djm) [auth.c] Fix NULL pointer dereference in fakepw(). Crash would
@ -2630,4 +2637,4 @@
OpenServer 6 and add osr5bigcrypt support so when someone migrates
passwords between UnixWare and OpenServer they will still work. OK dtucker@
$Id: ChangeLog,v 1.4594 2007/01/05 05:25:46 djm Exp $
$Id: ChangeLog,v 1.4595 2007/01/05 05:26:45 djm Exp $

17
channels.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: channels.c,v 1.266 2006/08/29 10:40:18 djm Exp $ */
/* $OpenBSD: channels.c,v 1.267 2006/12/12 03:58:42 djm Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -2525,11 +2525,18 @@ channel_request_remote_forwarding(const char *listen_host, u_short listen_port,
/* Send the forward request to the remote side. */
if (compat20) {
const char *address_to_bind;
if (listen_host == NULL)
address_to_bind = "localhost";
else if (*listen_host == '\0' || strcmp(listen_host, "*") == 0)
address_to_bind = "";
if (listen_host == NULL) {
if (datafellows & SSH_BUG_RFWD_ADDR)
address_to_bind = "127.0.0.1";
else
address_to_bind = "localhost";
} else if (*listen_host == '\0' ||
strcmp(listen_host, "*") == 0) {
if (datafellows & SSH_BUG_RFWD_ADDR)
address_to_bind = "0.0.0.0";
else
address_to_bind = "";
} else
address_to_bind = listen_host;
packet_start(SSH2_MSG_GLOBAL_REQUEST);

5
compat.c
View File

@ -1,4 +1,4 @@
/* $OpenBSD: compat.c,v 1.76 2006/08/03 03:34:42 deraadt Exp $ */
/* $OpenBSD: compat.c,v 1.77 2006/12/12 03:58:42 djm Exp $ */
/*
* Copyright (c) 1999, 2000, 2001, 2002 Markus Friedl. All rights reserved.
*
@ -133,7 +133,8 @@ compat_datafellows(const char *version)
{ "2.3.*", SSH_BUG_DEBUG|SSH_BUG_RSASIGMD5|
SSH_BUG_FIRSTKEX },
{ "2.4", SSH_OLD_SESSIONID }, /* Van Dyke */
{ "2.*", SSH_BUG_DEBUG|SSH_BUG_FIRSTKEX },
{ "2.*", SSH_BUG_DEBUG|SSH_BUG_FIRSTKEX|
SSH_BUG_RFWD_ADDR },
{ "3.0.*", SSH_BUG_DEBUG },
{ "3.0 SecureCRT*", SSH_OLD_SESSIONID },
{ "1.7 SecureFX*", SSH_OLD_SESSIONID },

3
compat.h
View File

@ -1,4 +1,4 @@
/* $OpenBSD: compat.h,v 1.40 2006/03/25 22:22:43 djm Exp $ */
/* $OpenBSD: compat.h,v 1.41 2006/12/12 03:58:42 djm Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Markus Friedl. All rights reserved.
@ -56,6 +56,7 @@
#define SSH_BUG_PROBE 0x00400000
#define SSH_BUG_FIRSTKEX 0x00800000
#define SSH_OLD_FORWARD_ADDR 0x01000000
#define SSH_BUG_RFWD_ADDR 0x02000000
void enable_compat13(void);
void enable_compat20(void);