Bug 825 - OpenSSH 3.8p1 breaks on Solaris 8 with 4in6 mapped addresses
Summary: OpenSSH 3.8p1 breaks on Solaris 8 with 4in6 mapped addresses
Status: CLOSED FIXED
Alias: None
Product: Portable OpenSSH
Classification: Unclassified
Component: sshd (show other bugs)
Version: 3.8p1
Hardware: All Solaris
: P3 normal
Assignee: OpenSSH Bugzilla mailing list
URL:
Keywords:
: 824 (view as bug list)
Depends on:
Blocks: 821
  Show dependency tree / graph
 
Reported: 2004-03-31 02:28 AEST by Markus Germeier
Modified: 2004-04-19 23:32 AEST (History)
1 user (show)

See Also:

Attachments
Server 1, Solaris8/sparc, dual stack, sshd -ddd (7.16 KB, text/plain)
2004-03-31 02:39 AEST, Markus Germeier 		no flags Details
Client 1, Solaris8/sparc, IPv4 only, ssh -vvv (5.09 KB, text/plain)
2004-03-31 02:41 AEST, Markus Germeier 		no flags Details
Server 2, Solaris8/x86, IPv4 only, sshd -ddd (7.16 KB, text/plain)
2004-03-31 02:42 AEST, Markus Germeier 		no flags Details
Client 2, Linux/x86, dual stack, ssh -vvv (5.04 KB, text/plain)
2004-03-31 02:43 AEST, Markus Germeier 		no flags Details
Call check_ip_options before mapped address normalisation (694 bytes, patch)
2004-03-31 14:40 AEST, Damien Miller 		dtucker: ok+
Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

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Description Markus Germeier 2004-03-31 02:28:53 AEST 
Hello,
Darren Tucker asked me to file a bug report here.

Short: OpenSSH 3.8p1 breaks on my Solaris 8 boxes (sparc and x86) when using
4in6 mapped addresses. IPv6 connections work fine.
Longer: http://marc.theaimsgroup.com/?l=secure-shell&m=107850542916554

Build with gcc 3.3.3 and this configure line:
./configure --prefix=/usr/opt/ssh --with-zlib=../zlib-1.2.1
--with-ssl-dir=../openssl-0.9.7d

Server: Solaris8 sparc+x86, with OpenSSH3.8.1p1
        using "ListenAddress ::" on dual IPv4/6 stack or IPv4-only
Client: Linux, Solaris, OpenSSH3.8.1p1, ssh.com 3.2.5
Remark: All connections are non-local (always two machines are involved)

Debug logs follow shortly.

Regards
   Markus
Comment 1 Markus Germeier 2004-03-31 02:39:13 AEST 
Created attachment 582 [details]
Server 1, Solaris8/sparc, dual stack, sshd -ddd
Comment 2 Markus Germeier 2004-03-31 02:41:12 AEST 
Created attachment 583 [details]
Client 1, Solaris8/sparc, IPv4 only, ssh -vvv
Comment 3 Markus Germeier 2004-03-31 02:42:41 AEST 
Created attachment 584 [details]
Server 2, Solaris8/x86, IPv4 only, sshd -ddd
Comment 4 Markus Germeier 2004-03-31 02:43:38 AEST 
Created attachment 585 [details]
Client 2, Linux/x86, dual stack, ssh -vvv
Comment 5 Markus Germeier 2004-03-31 02:45:31 AEST 
*** Bug 824 has been marked as a duplicate of this bug. ***
Comment 6 Markus Germeier 2004-03-31 03:57:00 AEST 
Just another note:
* OpenSSH 3.7.1p2 works fine
* configure reports:
    Translate v4 in v6 hack: no
  while the Changelog says:
    20031123
 - (djm) [canohost.c] Move IPv4inV6 mapped address normalisation to its own
   function and call it unconditionally
* Checking the source proves the Changelog right
  (see the "fix" in my original posting to the mailinglist which revokes the
"unconditionally" part)
Comment 7 Darren Tucker 2004-03-31 12:59:18 AEST 
OK, I can now reproduce it.  Should fix for 3.8.1p1 (not sure how yet).
Comment 8 Damien Miller 2004-03-31 14:40:18 AEST 
Created attachment 587 [details]
Call check_ip_options before mapped address normalisation

This is dying because we found IP options, but this check (for now) is supposed
to be IPv4 only. Unfortunately we have normalised the address format before
this is conditionally called, so it was being called for mapped IPv6 addresses
too.

Please try this patch.
Comment 9 Darren Tucker 2004-03-31 14:56:31 AEST 
Comment on attachment 587 [details]
Call check_ip_options before mapped address normalisation

Patch fixes the problem for me.
Comment 10 Markus Germeier 2004-03-31 20:49:35 AEST 
Hello,

the patch fixes this problem for me on Solaris/sparc+x86 while it does not break
linux. ;-) Great!

Thanks for the quick fix.

Regards
  Markus
Comment 11 Darren Tucker 2004-03-31 20:52:35 AEST 
Patch has been committed and will be in 3.8.1p1.  Thanks for the report.
Comment 12 Damien Miller 2004-04-19 23:32:30 AEST 
Closed with release of portable OpenSSH 3.8.1p1