Hello desrt, or anyone else affected,

Accepted deja-dup into bionic-proposed. The package will build now and
be available at https://launchpad.net/ubuntu/+source/deja-
dup/37.1-2fakesync1ubuntu0.2 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
bionic to verification-done-bionic. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-bionic. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to duplicity in Ubuntu.
https://bugs.launchpad.net/bugs/918489

Title:
  duplicity allows a new, different passphrase if an archive cache
  exists

Status in Déjà Dup:
  Fix Released
Status in Duplicity:
  Fix Released
Status in deja-dup package in Ubuntu:
  Fix Released
Status in duplicity package in Ubuntu:
  Fix Released
Status in deja-dup source package in Trusty:
  Fix Released
Status in duplicity source package in Trusty:
  Won't Fix
Status in deja-dup source package in Xenial:
  Fix Released
Status in duplicity source package in Xenial:
  Won't Fix
Status in deja-dup source package in Yakkety:
  Fix Released
Status in duplicity source package in Yakkety:
  Won't Fix
Status in deja-dup source package in Bionic:
  Fix Committed
Status in duplicity source package in Bionic:
  Won't Fix

Bug description:
  when doing a backup for the first time, dejadup verifies your
  passphrase by having you enter it twice.

  on future incremental backups it doesn't need to do this because
  entering the wrong password will result in the backup failing.

  with the periodic 'full' backups that happen from time to time,
  however, any password will be accepted.

  this can lead to a situation where you accidentally type the wrong
  password once and are left in a situation where you don't know what
  you typed and have no way to get your files (or do another incremental
  backup on top of it).

  i think this is what happened to me recently.

  clearly, the fix is to explicitly verify the passphrase is correct
  when doing a new full backup.  this may be a duplicity bug.

  === Ubuntu deja-dup SRU information ===

  [impact]
  Users may unwittingly re-set their backup password and not be able to restore 
their data.

  [test case]
  - $ deja-dup-preferences # set up a dummy backup
  - $ deja-dup --backup # complete first encrypted full backup
  - $ rename 's/\.2016/\.2000/' /path/to/test/backup/*
  - $ rename 's/\.2016/\.2000/' ~/.cache/deja-dup/*/*
  - $ deja-dup --backup # second backup, enter the wrong password
  - $ deja-dup --restore # try to restore with original password

  [regression potential]
  Should be limited?  The fix is to delete the duplicity cache files, which 
ought to be safe to delete.

  It's possible if a full backup is being resumed, we might delete the
  current progress.  That is a better bug to have than this bug, though.
  A more complicated patch would need to be investigated to prevent
  that.

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