Public bug reported:
I had modified /etc/ssmtp/revaliases and /etc/ssmtp/ssmtp.config to give
myself read access so that my backup routine could copy them.
After upgrading from 16.04 to 18.04 the permissions on both files were
reset and only the group 'mail' was given read-write permission and
'others' were denied read access to ssmtp.config.
The upgrader should NOT have done that.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42
ProcVersionSignature: Ubuntu 4.15.0-135.139-generic 4.15.18
Uname: Linux 4.15.0-135-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.23
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Mon Feb 8 11:59:36 2021
InstallationDate: Installed on 2018-11-23 (807 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2021-02-06 (1 days ago)
VarLogDistupgradeTermlog:
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic dist-upgrade
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https://bugs.launchpad.net/bugs/1914970
Title:
upgrade 16.04 -> 18.04 wrongly resets user permissions
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