[Bug 1771011] Re: Doesn't accept environment variable with underscore in its name in AuthorizedKeysFile

[Ubuntu Foundations Team Bug Bot]

The attachment "0001-permit-underscore-in-user-environment.patch" seems
to be a patch.  If it isn't, please remove the "patch" flag from the
attachment, remove the "patch" tag, and if you are a member of the
~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: patch

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https://bugs.launchpad.net/bugs/1771011

Title:
  Doesn't accept environment variable with underscore in its name in
  AuthorizedKeysFile

Status in openssh package in Ubuntu:
  Triaged

Bug description:
  If environment variable name defined in AuthorizedKeysFile contains underscore character (environment="FOO_BAR=1" ...), sshd refuses connection and throws following error:
  authorized_keys:1: bad key options: invalid environment string

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