package ca-certificates 20180409 failed to install/upgrade: installed ca-certificates package post-installation script subprocess returned error exit status 23

[Qu Bit]

in the course of the upgrade process from 17.10 to 18.04
a partial upgrade was executed

> lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: ca-certificates 20180409
ProcVersionSignature: Ubuntu 4.13.0-41.46-generic 4.13.16
Uname: Linux 4.13.0-41-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Thu May 10 19:39:18 2018
ErrorMessage: installed ca-certificates package post-installation script subprocess returned error exit status 23
InstallationDate: Installed on 2016-12-01 (525 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: ca-certificates
Title: package ca-certificates 20180409 failed to install/upgrade: installed ca-certificates package post-installation script subprocess returned error exit status 23
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.