[Bug 1971895] Re: Warning messages from stat printed on installation with no user crontabs

[Mikko Rantalainen]

Confirming this on Ubuntu 18.04.6 LTS while installing updates:

Setting up cron (3.0pl1-128.1ubuntu1.1) ...
stat: cannot stat '*': No such file or directory
stat: cannot stat '*': No such file or directory
stat: cannot stat '*': No such file or directory
Warning: * is not a regular file!
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults

I'm pretty sure I haven't seen this problem with other updates.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to cron in Ubuntu.
https://bugs.launchpad.net/bugs/1971895

Title:
  Warning messages from stat printed on installation with no user
  crontabs

Status in cron package in Ubuntu:
  Confirmed

Bug description:
  On installation of cron on a new system, or (I expect) an upgrade with
  no user crontab files the following is printed:

  Setting up cron (3.0pl1-128.1ubuntu1.1) ...
  stat: cannot stat '*': No such file or directory
  stat: cannot stat '*': No such file or directory
  stat: cannot stat '*': No such file or directory
  Warning: * is not a regular file!

  This is related to the fix for CVE-2017-9525 introduced in
  3.0pl1-128.1ubuntu1.1. The for loop at line 66 of cron.postinst needs
  to have a guard like the following added to it:

  [ "$tab_name" = "*" ] && continue

  We have observed this with Bionic, I haven't checked any other Ubuntu
  releases.

  Cheers,
  Andrew

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/cron/+bug/1971895/+subscriptions