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

[Peter Poliak]

Public bug reported:

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

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


** Tags: authorizedkeysfile underscore

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

Status in openssh package in Ubuntu:
  New

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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