[Bug 1562419] Re: Unable to set a number with a fractional part as the value to the timestamp_timeout option in /etc/sudoers

[kos]

Ok, the issue seems to be related to the locale in use.

Namely this seems to be happening when using Italian locale (possibly
other locales will be affected as well), where commas (as opposed to
dots) are used to separate the decimal part of a figure.

Booting the ISOs of Trusty / Unity, Wily / Unity and Wily / GNOME
choosing Italian as the language the issue is always present, while
booting choosing English as the language the issue is never present.

So to reproduce: simply boot one of the Trusty / Unity, Wily / Unity or
Wily / GNOME ISOs (most likely all other ISOs will be affected as well)
choosing Italian as the language, open Terminal, run sudo visudo, add a
line "Defaults timestamp_timeout=2.5", save, exit and try to run a sudo
command (e.g. sudo -l).

** Description changed:

  % lsb_release -rd
  Description:	Ubuntu 15.10
  Release:	15.10
  % apt-cache policy sudo
  sudo:
    Installed: 1.8.12-1ubuntu3
    Candidate: 1.8.12-1ubuntu3
    Version table:
   *** 1.8.12-1ubuntu3 0
          500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status
  
  ---
  
- Setting a number with a fractional part as the value to the
+ When using Italian locale (possibly other locale will be affected as
+ well), setting a number with a fractional part as the value to the
  timestamp_timeout option in /etc/sudoers makes sudo complain about it,
  not honor the desired timeout and behave as if timestamp_timeout wasn't
  set at all: after the expiration of the first timestamp sudo stops
  complaining about it, but the desired timeout is still not honored.
  
  % sudo sleep 1
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  % sudo -l
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  Matching Defaults entries for user on user-X550CL:
      env_reset, timestamp_timeout=2.5, mail_badpass,
      secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
  
  User user may run the following commands on user-X550CL:
      (ALL : ALL) ALL
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: sudo 1.8.12-1ubuntu3
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Mar 26 23:36:41 2016
  InstallationDate: Installed on 2016-02-16 (39 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no username)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/usr/bin/zsh
  SourcePackage: sudo
  UpgradeStatus: No upgrade log present (probably fresh install)
  VisudoCheck:
   /etc/sudoers: parsed OK
   /etc/sudoers.d/README: parsed OK
  modified.conffile..etc.sudoers: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers']
  modified.conffile..etc.sudoers.d.README: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers.d/README']

** Description changed:

  % lsb_release -rd
  Description:	Ubuntu 15.10
  Release:	15.10
  % apt-cache policy sudo
  sudo:
    Installed: 1.8.12-1ubuntu3
    Candidate: 1.8.12-1ubuntu3
    Version table:
   *** 1.8.12-1ubuntu3 0
          500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status
  
  ---
  
- When using Italian locale (possibly other locale will be affected as
+ When using Italian locale (possibly other locales will be affected as
  well), setting a number with a fractional part as the value to the
  timestamp_timeout option in /etc/sudoers makes sudo complain about it,
  not honor the desired timeout and behave as if timestamp_timeout wasn't
  set at all: after the expiration of the first timestamp sudo stops
  complaining about it, but the desired timeout is still not honored.
  
  % sudo sleep 1
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  % sudo -l
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  Matching Defaults entries for user on user-X550CL:
      env_reset, timestamp_timeout=2.5, mail_badpass,
      secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
  
  User user may run the following commands on user-X550CL:
      (ALL : ALL) ALL
  
  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: sudo 1.8.12-1ubuntu3
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Mar 26 23:36:41 2016
  InstallationDate: Installed on 2016-02-16 (39 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no username)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/usr/bin/zsh
  SourcePackage: sudo
  UpgradeStatus: No upgrade log present (probably fresh install)
  VisudoCheck:
   /etc/sudoers: parsed OK
   /etc/sudoers.d/README: parsed OK
  modified.conffile..etc.sudoers: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers']
  modified.conffile..etc.sudoers.d.README: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers.d/README']

** Summary changed:

- Unable to set a number with a fractional part as the value to the timestamp_timeout option in /etc/sudoers
+ Unable to set a number with a fractional part as the value to the timestamp_timeout option in /etc/sudoers when using Italian locale (possibly other locales will be affected as well)

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https://bugs.launchpad.net/bugs/1562419

Title:
  Unable to set a number with a fractional part as the value to the
  timestamp_timeout option in /etc/sudoers when using Italian locale
  (possibly other locales will be affected as well)

Status in sudo package in Ubuntu:
  New

Bug description:
  % lsb_release -rd
  Description:	Ubuntu 15.10
  Release:	15.10
  % apt-cache policy sudo
  sudo:
    Installed: 1.8.12-1ubuntu3
    Candidate: 1.8.12-1ubuntu3
    Version table:
   *** 1.8.12-1ubuntu3 0
          500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
          100 /var/lib/dpkg/status

  ---

  When using Italian locale (possibly other locales will be affected as
  well), setting a number with a fractional part as the value to the
  timestamp_timeout option in /etc/sudoers makes sudo complain about it,
  not honor the desired timeout and behave as if timestamp_timeout
  wasn't set at all: after the expiration of the first timestamp sudo
  stops complaining about it, but the desired timeout is still not
  honored.

  % sudo sleep 1
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  % sudo -l
  sudo: value `2.5' is invalid for option `timestamp_timeout'
  Matching Defaults entries for user on user-X550CL:
      env_reset, timestamp_timeout=2.5, mail_badpass,
      secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin

  User user may run the following commands on user-X550CL:
      (ALL : ALL) ALL

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: sudo 1.8.12-1ubuntu3
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Sat Mar 26 23:36:41 2016
  InstallationDate: Installed on 2016-02-16 (39 days ago)
  InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no username)
   XDG_RUNTIME_DIR=<set>
   LANG=it_IT.UTF-8
   SHELL=/usr/bin/zsh
  SourcePackage: sudo
  UpgradeStatus: No upgrade log present (probably fresh install)
  VisudoCheck:
   /etc/sudoers: parsed OK
   /etc/sudoers.d/README: parsed OK
  modified.conffile..etc.sudoers: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers']
  modified.conffile..etc.sudoers.d.README: [inaccessible: [Errno 13] Permission denied: '/etc/sudoers.d/README']

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