The verification passed for focal.
jawn-smith@focal-vm:~$ apt-cache policy passwd
passwd:
Installed: 1:4.8.1-1ubuntu5.20.04
Candidate: 1:4.8.1-1ubuntu5.20.04.1
Version table:
1:4.8.1-1ubuntu5.20.04.1 500
500 http://us.archive.ubuntu.com/ubuntu focal-proposed/main amd64
Packages
*** 1:4.8.1-1ubuntu5.20.04 500
500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64
Packages
100 /var/lib/dpkg/status
1:4.8.1-1ubuntu5 500
500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages
jawn-smith@focal-vm:~$ sudo useradd 123
jawn-smith@focal-vm:~$ grep "^123" /etc/passwd
123:x:1001:1001::/home/123:/bin/sh
jawn-smith@focal-vm:~$ sudo userdel 123
jawn-smith@focal-vm:~$ sudo apt install passwd
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
linux-headers-5.8.0-43-generic linux-headers-5.8.0-50-generic
linux-hwe-5.8-headers-5.8.0-43 linux-hwe-5.8-headers-5.8.0-50
linux-image-5.8.0-43-generic linux-image-5.8.0-50-generic
linux-modules-5.8.0-43-generic linux-modules-5.8.0-50-generic
linux-modules-extra-5.8.0-43-generic linux-modules-extra-5.8.0-50-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
passwd
1 upgraded, 0 newly installed, 0 to remove and 49 not upgraded.
Need to get 799 kB of archives.
After this operation, 1,024 B of additional disk space will be used.
Get:1 http://us.archive.ubuntu.com/ubuntu focal-proposed/main amd64 passwd
amd64 1:4.8.1-1ubuntu5.20.04.1 [799 kB]
Fetched 799 kB in 0s (2,027 kB/s)
(Reading database ... 275608 files and directories currently installed.)
Preparing to unpack .../passwd_1%3a4.8.1-1ubuntu5.20.04.1_amd64.deb ...
Unpacking passwd (1:4.8.1-1ubuntu5.20.04.1) over (1:4.8.1-1ubuntu5.20.04) ...
Setting up passwd (1:4.8.1-1ubuntu5.20.04.1) ...
Processing triggers for man-db (2.9.1-1) ...
jawn-smith@focal-vm:~$ sudo useradd 123
useradd: invalid user name '123'
jawn-smith@focal-vm:~$ grep "^123" /etc/passwd
jawn-smith@focal-vm:~$
** Tags removed: verification-needed verification-needed-focal
** Tags added: verification-done verification-done-focal
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1927078
Title:
Don't allow useradd to use fully numeric names
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1927078/+subscriptions
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