Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: pam (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1766325
Title:
sudo: pam_unix(sudo:auth): conversation failed
Status in pam package in Ubuntu:
Confirmed
Status in sudo package in Ubuntu:
Confirmed
Bug description:
Hello.
I experience a bug after upgrading from Ubuntu 17.10 to 18.04.
The bug seems to be a regression because what I am trying to do was
working with Ubuntu 17.10 and stopped working after the upgrade.
Here is the problem:
I have 2 users on my system. One is the user that is created during
installation, named zzz. The other user I added later, named abc. Both
users have passwords set. According to passwd the password for user
abc is a locked password (L) (whatever that means).
Now I am logged into user zzz and want to execute a program as user
abc without entering the password of user abc.
Until Ubuntu 17.10 this was done like this: "sudo -i -u abc /usr/bin/java
-version".
To get that working I had to add this via visudo: "zzz ALL=(abc) NOPASSWD:
/usr/bin/java"
Now this seems to be ignored. Instead the terminal is asking for the
password of user abc. I see this in /var/log/auth.log: "sudo:
pam_unix(sudo:auth): conversation failed".
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