Ubuntu
seahorse package

seahorse writes null bytes onto the end of .ssh/authorized_keys

Bug #257415 reported by Anders Kaseorg on 2008-08-12

Affects		Status	Importance	Assigned to	Milestone
	seahorse	Fix Released	Low	gnome-bugs #549747
	seahorse (Ubuntu)	Fix Released	Undecided	Ubuntu Desktop Bugs

Bug Description

Binary package hint: seahorse

In seahorse, Remote → Configure Key for Secure Shell… will copy an SSH public key to a remote host’s .ssh/authorized_keys. However, it also appends extra null bytes to the end of the file:

$ xxd .ssh/authorized_keys
0000000: 7373 682d 7273 6120 4141 4141 4233 4e7a ssh-rsa AAAAB3Nz
0000010: 6143 3179 6332 4541 4141 4142 4977 4141 aC1yc2EAAAABIwAA
…
0000170: 6c31 6f49 3559 3973 3851 3d3d 2061 6e64 l1oI5Y9s8Q== and
0000180: 6572 7340 6261 6c61 6e63 6564 2d74 7265 ers@balanced-tre
0000190: 650a 0000 0000 0000 0000 0000 0000 0000 e...............
00001a0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001b0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001c0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001d0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001e0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
00001f0: 0000 0000 0000 0000 0000 0000 0000 0000 ................
$

I’m using seahorse 2.23.6-0ubuntu2 on Intrepid amd64.

Related branches

lp:ubuntu/karmic/seahorse

Revision history for this message

Andreas Moog (ampelbein) wrote on 2008-08-28:

Thanks for reporting this bug. I filed an Upstreambugreport which you can track here:
http://bugzilla.gnome.org/show_bug.cgi?id=549747

Changed in seahorse:
status:	New → Confirmed

Bug Watch Updater (bug-watch-updater) on 2008-08-28

Changed in seahorse:
status:	Unknown → Confirmed

C de-Avillez (hggdh2) on 2008-08-28

Changed in seahorse:
importance:	Undecided → Medium
status:	Confirmed → Triaged

Andreas Moog (ampelbein) on 2008-08-28

Changed in seahorse:
status:	Triaged → Fix Committed

James Westby (james-w) on 2008-08-28

Changed in seahorse:
assignee:	nobody → desktop-bugs
importance:	Medium → Undecided
status:	Fix Committed → Triaged

Revision history for this message

Andreas Moog (ampelbein) wrote on 2008-08-29:

seahorse_2.23.90-0ubuntu2.debdiff Edit (4.6 KiB, text/plain)

debdiff attached:

seahorse (2.23.90-0ubuntu2) intrepid; urgency=low

* Added patch to prevent Nullbytes being written to .authorized_keys (lp: #257415)
* Added patch to Clear passwords-tab before refilling (lp: #256679)

-- Andreas Moog <email address hidden> Fri, 29 Aug 2008 02:52:00 +0200

Andreas Moog (ampelbein) on 2008-08-29

Changed in seahorse:
status:	Triaged → Fix Committed

Bug Watch Updater (bug-watch-updater) on 2008-08-29

Changed in seahorse:
status:	Confirmed → Fix Released

Revision history for this message

Launchpad Janitor (janitor) wrote on 2008-09-03:

This bug was fixed in the package seahorse - 2.23.91-0ubuntu1

---------------
seahorse (2.23.91-0ubuntu1) intrepid; urgency=low

  * New upstream version:
    - Fix copying keys to the clipboard. (lp: #230537)
    - Fix double free crash when importing keys.
    - Fix crasher when deleting a key.
    - Don't add extra null bytes to SSH authorized_keys and similar files.
      (lp: #257415)
    - Documentation fixes.
    - Don't repeatedly load gnome-keyring items. (lp: #256679)
    - Make help button in 'First Time Options' work proprely.
    - Better wording for options in PGP key dialogs.

-- Sebastien Bacher <email address hidden> Wed, 03 Sep 2008 22:05:21 +0200