[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Launchpad Bug Tracker]

This bug was fixed in the package openssh - 1:7.4p1-5

---
openssh (1:7.4p1-5) unstable; urgency=medium

  * Create mux socket for regression tests in a temporary directory.
  * Work around clock_gettime kernel bug on Linux x32 (closes: #849923).

 -- Colin Watson   Tue, 03 Jan 2017 14:43:28 +

** Changed in: openssh (Ubuntu)
   Status: Triaged => Fix Released

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Colin Watson]

** Also affects: openssh via
   https://bugzilla.mindrot.org/show_bug.cgi?id=2643
   Importance: Unknown
   Status: Unknown

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

Thank you @Colin Watson. I reported this to the upstream. Here is the
link to the bug: https://bugzilla.mindrot.org/show_bug.cgi?id=2643

** Bug watch added: OpenSSH Portable Bugzilla #2643
   https://bugzilla.mindrot.org/show_bug.cgi?id=2643

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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Re: [Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Colin Watson]

This is an upstream regression very probably caused by:

https://anongit.mindrot.org/openssh.git/commit/?id=65c6c6b567ab5ab12945a5ad8e0ab3a8c26119cc

I'd suggest filing it upstream at https://bugzilla.mindrot.org/ - it may
be possible to preserve the intent of the above change by substituting a
deliberately-locale-unaware version of tolower() when parsing
configuration files, or maybe just by calling setlocale() after parsing
configuration files.

 status triaged


** Changed in: openssh (Ubuntu)
   Status: Incomplete => Triaged

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Onur Güzel]

I have encountered this bug today. You can reproduce it by launching ssh
in Turkish locale environment:

LC_ALL=tr_TR.UTF8 ssh u...@example.com

Ubuntu version is 16.10, and openssh-client version is 1:7.3p1-1. I
guess the client converts parameters in config files to lowercase when
parsing and gives error because both GSSAPIAuthentication and
GSSAPIDelegateCredentials parameters has "I" character.

Turkish have two separate "i" character dotted and dotless. Per the
Unicode standard, our lowercase "i" becomes "İ" (U+0130 "Latin Capital
Letter I With Dot Above") when it moves to uppercase. Similarly, our
uppercase "I" becomes "ı" (U+0131 "Latin Small Letter Dotless I") when
it moves to lowercase.

For additional info, you can check out the links below:
http://www.moserware.com/2008/02/does-your-code-pass-turkey-test.html
https://blog.codinghorror.com/whats-wrong-with-turkey/
http://mattryall.net/blog/2009/02/the-infamous-turkish-locale-bug

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Robie Basak]

I'm going to leave this as Incomplete, since it isn't clear to me that
this is a bug in Ubuntu at all. If you can provide steps that will
produce the problem on a different system, then we can look further.
Otherwise, please understand that this bug will not make progress, and
that you're more likely to find people to help you outside the bug
tracking system, for example in your askubuntu.com question.

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

@ChristianEhrhardt, I installed 1:7.2p2-4ubuntu2.1 version of openssh-
client package from Xenial after purging 1:7.3p1-1 version. With this
version, I can ssh to any host without using LC_ALL=C variable.

ssh launchpad.net
ssh: connect to host launchpad.net port 22: Connection refused

ssh gitlab.com
Permission denied (publickey).


LC_ALL=C apt-cache policy openssh-client
openssh-client:
  Installed: 1:7.2p2-4ubuntu2.1
  Candidate: 1:7.3p1-1
  Version table:
 1:7.3p1-1 500
500 http://archive.ubuntu.com/ubuntu yakkety/main amd64 Packages
 *** 1:7.2p2-4ubuntu2.1 100
100 /var/lib/dpkg/status

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

@ChristianEhrhardt, you are welcome. I thank you for trying to help me!
Yes, I reported this problem in AskUbuntu, then decided to report it as
a bug.

Is there a way for me to debug ssh? Or "bisect" it? I am going to try to
install a previous version of ssh package.

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[ChristianEhrhardt]

Thanks for uploading.
I really see nothing in your files that would cause this.
Still I reproduced your setup on my yakkety machine but run into no issues what 
so ever when setting tr_TR locales.

I see you also opened a askubuntu thread - linking here as FYI
http://askubuntu.com/questions/843891/can-not-clone-a-git-repository-
over-ssh-bad-configuration-option.

ATM - I fail to reproduce, but would like to understand what is going
on.

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

"Do you have any other parts to your GSSAPI config or such that might be
relevant."

I don't have anything like that. I event do not touch/modify/edit
/etc/ssh/ssh_config file.

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

** Attachment added: "/etc/ssh/ssh_config"
   
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+attachment/4772655/+files/ssh_config

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  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

** Attachment added: "~/.ssh/config"
   
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+attachment/4772654/+files/config

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  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

@ChristianEhrhardt, I uploded both of them.

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[ChristianEhrhardt]

Trying to reproduce:
Xenial - all cases working with Identity or gsapi configs
Yakkety - login as usual works
Yakkety - Adding LANG=tr_TR.UTF-8 login still works
Yakkety - Adding LANG=tr_TR.UTF-8 and enabling Identity / gssapi configs login 
still works

I currently have "openssh-client 1:7.3p1-1" on my client (Yakkety).
My server was a 16.04.1 with 1:7.2p2-4ubuntu2.1

Do you have any other parts to your GSSAPI config or such that might be
relevant.

If not having anything confidential please share your ~/.ssh/config and
/etc/ssh/ssh_config for the error and the "fixed" case by modifying the
conf files.


** Changed in: openssh (Ubuntu)
   Status: Confirmed => Incomplete

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: openssh (Ubuntu)
   Status: New => Confirmed

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

strace of ssh gitlab.com

** Attachment added: "strace-ssh.log"
   
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+attachment/4770653/+files/strace-ssh.log

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Title:
  Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

/etc/environment is attached.

** Attachment added: "environment"
   
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+attachment/4770650/+files/environment

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[Bug 1638338] Re: Can not ssh with tr_TR.UTF-8 locales (Bad configuration options)

[Numan Demirdöğen]

/etc/default/locale is attached.

** Attachment added: "locale"
   
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1638338/+attachment/4770648/+files/locale

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