[Bug 2022000] [NEW] Garbled characters displayed when running "zipinfo --help" command

Dominik Viererbe 2022000 at bugs.launchpad.net
Wed May 31 18:54:12 UTC 2023


Public bug reported:

When I was running "unzip --help" on jammy I got the output you see at
the end of this bug ticket. This behavior is not present on bionic,
focal, kinetic, lunar and mantic.

Note: On bionic, focal, lunar and mantic I got the error message "error:  zipfile probably corrupt (segmentation violation)"
This message was not present on jammy and kinetic.

How to replicate:
$ lxc launch images:ubuntu/jammy tester
$ lxc exec tester bash
$ apt install -y unzip
$ zipinfo --help
ZipInfo 3.00 of 20 April 2009, by Greg Roelofs and the Info-ZIP group.

List name, date/time, attribute, size, compression method, etc., about files
in list (excluding those in xlist) contained in the specified .zip archive(s).
"file[.zip]" may be a wildcard name containing *, ?, [] (e.g., "[a-j]*.zip").

   usage:  zipinfo [-12smlvChMtTz] file[.zip] [list...] [-x xlist...]
      or:  unzip -Z [-12smlvChMtTz] file[.zip] [list...] [-x xlist...]

main listing-format options:             -s  short Unix "ls -l" format (def.)
  -1  filenames ONLY, one per line       -m  medium Unix "ls -l" format
  -2  just filenames but allow -h/-t/-z  -l  long Unix "ls -l" format
                                         -v  verbose, multi-page format
miscellaneous options:
  -h  print header line       -t  print totals for listed files or for all
  -z  print zipfile comment   -T� print file times in sortable decimal format
 �-C be case-insensitive   4l���i���i���i��l���j���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���j���i���i���i���i���i��|k���i���i���i��\k���i��<l���i���i���i���i���j��k���i��lj���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���k��Dk���i���i���i���i���i���k���j���i��Lj���i���i���i��,j�����#���������Z���Z���Z���Z����������ތ���������������2���2���2���2���Ō���������� ���@���������������������������������������(���(�����������S����6��*��*��*��|)��*��*��*��*��*��*��,��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*�����*��*��*��|)��*��*��*��*��*��*��,��PPMd  -x  exclude filenames that follow from listing
  -O CHARSET  specify a character encoding for DOS, Windows and OS/2 archives
  -I CHARSET  specify a character encoding for UNIX and other archives

** Affects: unzip (Ubuntu)
     Importance: Undecided
         Status: New

-- 
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https://bugs.launchpad.net/bugs/2022000

Title:
  Garbled characters displayed when running "zipinfo --help" command

Status in unzip package in Ubuntu:
  New

Bug description:
  When I was running "unzip --help" on jammy I got the output you see at
  the end of this bug ticket. This behavior is not present on bionic,
  focal, kinetic, lunar and mantic.

  Note: On bionic, focal, lunar and mantic I got the error message "error:  zipfile probably corrupt (segmentation violation)"
  This message was not present on jammy and kinetic.

  How to replicate:
  $ lxc launch images:ubuntu/jammy tester
  $ lxc exec tester bash
  $ apt install -y unzip
  $ zipinfo --help
  ZipInfo 3.00 of 20 April 2009, by Greg Roelofs and the Info-ZIP group.

  List name, date/time, attribute, size, compression method, etc., about files
  in list (excluding those in xlist) contained in the specified .zip archive(s).
  "file[.zip]" may be a wildcard name containing *, ?, [] (e.g., "[a-j]*.zip").

     usage:  zipinfo [-12smlvChMtTz] file[.zip] [list...] [-x xlist...]
        or:  unzip -Z [-12smlvChMtTz] file[.zip] [list...] [-x xlist...]

  main listing-format options:             -s  short Unix "ls -l" format (def.)
    -1  filenames ONLY, one per line       -m  medium Unix "ls -l" format
    -2  just filenames but allow -h/-t/-z  -l  long Unix "ls -l" format
                                           -v  verbose, multi-page format
  miscellaneous options:
    -h  print header line       -t  print totals for listed files or for all
    -z  print zipfile comment   -T� print file times in sortable decimal format
   �-C be case-insensitive   4l���i���i���i��l���j���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���j���i���i���i���i���i��|k���i���i���i��\k���i��<l���i���i���i���i���j��k���i��lj���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���i���k��Dk���i���i���i���i���i���k���j���i��Lj���i���i���i��,j�����#���������Z���Z���Z���Z����������ތ���������������2���2���2���2���Ō���������� ���@���������������������������������������(���(�����������S����6��*��*��*��|)��*��*��*��*��*��*��,��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*��*�����*��*��*��|)��*��*��*��*��*��*��,��PPMd  -x  exclude filenames that follow from listing
    -O CHARSET  specify a character encoding for DOS, Windows and OS/2 archives
    -I CHARSET  specify a character encoding for UNIX and other archives

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