Ubuntu Server x64 20.04 focal - apt-listbugs not available

[squirrelboot]

Hello,

I just installed a new Ubuntu Server instance, and after doing basic update I thought I would use this lockdown script. However, I noticed that this is happening during the AIDE installation.

OS: Ubuntu 20.04 focal
Kernel: x86_64 Linux 5.4.0-33-generic

running sudo ./lockdown.sh

{
apt install apt-listbugs apt-listchanges needrestart debsecan debsums libpam-cracklib aide usbguard acct -y
}
Install recommended packages
Run the above commands? [y/N]
y
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package apt-listbugs is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'apt-listbugs' has no installation candidate
{
aideinit;
mv /var/lib/aide/aide.db.new /var/lib/aide/aide.db
}
Setup aide

[squirrelboot]

sudo apt install apt-listbugs

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package apt-listbugs is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'apt-listbugs' has no installation candidate