command-not-found crashes when interpreted as python -S /usr/lib/command-not-found

[[redacted]]

Binary package hint: command-not-found

Version:
command-not-found:
  Installed: 0.2.8ubuntu2
  Candidate: 0.2.8ubuntu2
  Versiontable:
 *** 0.2.8ubuntu2 0
        500 http://nl.archive.ubuntu.com gutsy/main Packages
        100 /var/lib/dpkg/status

Description: KUbuntu 7.10
Release: 7.10

I was displaying a binary (attached) with cat (stupid me)
and it said all things:

import site' failed; use -v for traceback

'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0

'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:

https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound

Python version: 2.5.1 final 0

'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0
'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0
bash: 2c1: opdracht niet gevonden
bash: 2c1: opdracht niet gevonden
bash: 2c1: opdracht niet gevonden

'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0

Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 5, in <module>
    BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/+source/command-not-found"
KeyboardInterrupt

'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0
'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found
Please include the following information with the report:
No module named CommandNotFound
Traceback (most recent call last):
  File "/usr/lib/command-not-found", line 10, in <module>
    from CommandNotFound import CommandNotFound
ImportError: No module named CommandNotFound
Python version: 2.5.1 final 0
'import site' failed; use -v for traceback

KABOOOM!!!

Whoops, command-not-found has crashed! Please file a bug report at:
https://bugs.launchpad.net/ubuntu/+source/command-not-found

[[redacted] (frozenfire-deactivatedaccount)]

Here is the binary

[Daniel T Chen (crimsun)]

Is this symptom still reproducible in 8.10 or 9.04?

[Sean Stoops (brutimus)]

Can anything really be done about catting a binary? From anything I've seen, the results are fairly unpredictable. For instance, try catting /bin/cat. In my opinion, command-not-found should not necessarily need to handle this behavior.

[era (era)]

Sean Stoops: any program crash is a bug. Until you have a proper analysis, it might even be a security vulnerability for all we know. The precise circumstances under which the input ends up in command-not-found are of secondary importance. You could end up with similar behavior when accidentally pasting random text in the terminal, for example. Catting is just a special case of that (and technically I believe fairly similar, in terms of what probably ends up crashing command-not-found).

[era (era)]

I was unable to repro on 8.10 in Terminal. (Good old xterm seems more robust against this to begin with.)

[Michael Vogt (mvo)]

I think this is a problem that got fixed in jaunty with:

command-not-found (0.2.33ubuntu1) jaunty; urgency=low

  * debian/rules:
    - update debian/rules to the new python way of installing
      packages
  * command-not-found:
    - remove "-S" from "#!/usr/bin/python"

 -- Michael Vogt <email address hidden> Mon, 02 Mar 2009 09:15:48 +0100