[Bug 1777710] [NEW] gpg throws out my secret keys after upgrade to 18.04

[Phillip Susi]

Public bug reported:

I recently upgraded a server from 16.04 to 18.04 and gpg has started
throwing out my secret keys.  I even tried deleting the .gnupg directory
and re-importing or just copying the secring from another working
system, and it still throws out the secret keys.

Working system:

C:\Users\psusi\AppData\Roaming\gnupg>gpg --version
gpg (GnuPG) 2.0.28 (Gpg4win 2.2.5)
C:\Users\psusi\AppData\Roaming\gnupg>gpg -K
C:/Users/psusi/AppData/Roaming/gnupg/secring.gpg
------------------------------------------------
sec#  2048R/A70FB705 2011-12-13
uid                  Phillip Susi <psusi at ubuntu.com>
uid                  Phillip Susi <psusi at cfl.rr.com>
ssb   2048R/51FEF1C9 2011-12-13
ssb   2048R/FA9EEEF9 2011-12-14
ssb   2048R/3348AAF0 2013-11-26
ssb   2048R/BDCC7F92 2013-11-26
ssb   2048R/9C8E5E51 2014-10-29
ssb   2048R/93A02CCD 2014-10-29
ssb   2048R/5CBBA516 2015-10-05
ssb   2048R/10850B71 2015-10-05
ssb   2048R/6100FE84 2017-01-06
ssb   2048R/0F60068B 2017-01-06

Broken system:

psusi at devserv:~$ gpg --version
gpg: WARNING: unsafe permissions on homedir '/home/psusi/.gnupg'
gpg (GnuPG) 2.2.4
psusi at devserv:~$ gpg -K
gpg: WARNING: unsafe permissions on homedir '/home/psusi/.gnupg'
/home/psusi/.gnupg/pubring.kbx
------------------------------
sec#  rsa2048 2011-12-13 [SCA]
      1B49F933916A37A3F45A1812015F4DD4A70FB705
uid           [ultimate] Phillip Susi <psusi at ubuntu.com>
uid           [ultimate] Phillip Susi <psusi at cfl.rr.com>

** Affects: gnupg2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1777710

Title:
  gpg throws out my secret keys after upgrade to 18.04

Status in gnupg2 package in Ubuntu:
  New

Bug description:
  I recently upgraded a server from 16.04 to 18.04 and gpg has started
  throwing out my secret keys.  I even tried deleting the .gnupg
  directory and re-importing or just copying the secring from another
  working system, and it still throws out the secret keys.

  Working system:

  C:\Users\psusi\AppData\Roaming\gnupg>gpg --version
  gpg (GnuPG) 2.0.28 (Gpg4win 2.2.5)
  C:\Users\psusi\AppData\Roaming\gnupg>gpg -K
  C:/Users/psusi/AppData/Roaming/gnupg/secring.gpg
  ------------------------------------------------
  sec#  2048R/A70FB705 2011-12-13
  uid                  Phillip Susi <psusi at ubuntu.com>
  uid                  Phillip Susi <psusi at cfl.rr.com>
  ssb   2048R/51FEF1C9 2011-12-13
  ssb   2048R/FA9EEEF9 2011-12-14
  ssb   2048R/3348AAF0 2013-11-26
  ssb   2048R/BDCC7F92 2013-11-26
  ssb   2048R/9C8E5E51 2014-10-29
  ssb   2048R/93A02CCD 2014-10-29
  ssb   2048R/5CBBA516 2015-10-05
  ssb   2048R/10850B71 2015-10-05
  ssb   2048R/6100FE84 2017-01-06
  ssb   2048R/0F60068B 2017-01-06

  Broken system:

  psusi at devserv:~$ gpg --version
  gpg: WARNING: unsafe permissions on homedir '/home/psusi/.gnupg'
  gpg (GnuPG) 2.2.4
  psusi at devserv:~$ gpg -K
  gpg: WARNING: unsafe permissions on homedir '/home/psusi/.gnupg'
  /home/psusi/.gnupg/pubring.kbx
  ------------------------------
  sec#  rsa2048 2011-12-13 [SCA]
        1B49F933916A37A3F45A1812015F4DD4A70FB705
  uid           [ultimate] Phillip Susi <psusi at ubuntu.com>
  uid           [ultimate] Phillip Susi <psusi at cfl.rr.com>

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