[Bug 1920640] Re: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

[Christian Ehrhardt ]

FYI: I've today had two systems exposing that issue.
The cleanup in comment #32 helped, but I wonder what caused it initially.
Sadly I can't recreate it anymore with a new system/container - might have been related to the keying update to 2021.03.26 a few days ago.

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Title:
  EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic
  Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

Status in ubuntu-keyring package in Ubuntu:
  Fix Released
Status in ubuntu-keyring source package in Bionic:
  Fix Released
Status in ubuntu-keyring source package in Focal:
  Fix Released
Status in ubuntu-keyring source package in Groovy:
  Fix Released
Status in ubuntu-keyring source package in Hirsute:
  Fix Released

Bug description:
  [Impact]

   * Cannot update apt metadata from ddebs.ubuntu.com whilst using
  ubuntu-dbgsym-keyring package

  [Test Plan]

   * Install ubuntu-dbgsym-keyring package
   * Add ddebs.ubuntu.com repository for your release
   * sudo apt update must be successful

   * Install ubuntu-dbgsym-keyring package
   * Install and use `apt-key list` and check that there is no expiry on the dbgsym key

  I.e. bad output
  /etc/apt/trusted.gpg.d/ubuntu-keyring-2016-dbgsym.gpg
  -----------------------------------------------------
  pub   rsa4096 2016-03-21 [SC] [expired: 2021-03-20]
        F2ED C64D C5AE E1F6 B9C6  21F0 C8CA B659 5FDF F622
  uid           [ expired] Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

  
  Good output has no [date] in the pub line.

  [Where problems could occur]

   * At the moment the signature was bumped by one year
   * Meaning this issue will occur again in 2022
   * Instead the key must be set to not expire & new round of SRUs issued

  [Other Info]

   * Original bug report

  The public key used by the debugging symbols repository
  /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg from the package ubuntu-
  dbgsym-keyring expired.

  $ apt policy ubuntu-dbgsym-keyring
  ubuntu-dbgsym-keyring:
    Installed: 2020.02.11.2
    Candidate: 2020.02.11.2
    Version table:
   *** 2020.02.11.2 500
          500 http://archive.ubuntu.com/ubuntu focal/main amd64 Packages
          500 http://archive.ubuntu.com/ubuntu focal/main i386 Packages
          100 /var/lib/dpkg/status
  $ gpg --no-default-keyring --keyring /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg --list-keys
  /usr/share/keyrings/ubuntu-dbgsym-keyring.gpg
  ---------------------------------------------
  pub   rsa4096 2016-03-21 [SC] [expired: 2021-03-20]
        F2EDC64DC5AEE1F6B9C621F0C8CAB6595FDFF622
  uid           [ expired] Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>

  Error message on "apt update":

  E: The repository 'http://ddebs.ubuntu.com bionic-updates Release' is not signed.
  N: Updating from such a repository can't be done securely, and is therefore disabled by default.
  N: See apt-secure(8) manpage for repository creation and user configuration details.
  W: GPG error: http://ddebs.ubuntu.com bionic Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>
  E: The repository 'http://ddebs.ubuntu.com bionic Release' is not signed.
  N: Updating from such a repository can't be done securely, and is therefore disabled by default.
  N: See apt-secure(8) manpage for repository creation and user configuration details.
  W: GPG error: http://ddebs.ubuntu.com bionic-proposed Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <ubuntu-archive at lists.ubuntu.com>
  E: The repository 'http://ddebs.ubuntu.com bionic-proposed Release' is not signed.
  N: Updating from such a repository can't be done securely, and is therefore disabled by default.
  N: See apt-secure(8) manpage for repository creation and user configuration details.

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