[Bug 1860826] Re: pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or directory

[Steve Langasek]

On Tue, Oct 27, 2020 at 03:49:30AM -0000, Zach H wrote:
> Hi, just to confirm that this may be a bigger issue than first
> anticipated - on Ubuntu Server 20.04 this is causing issues with logins
> via sftp/ftp.

Why do you believe your issue is caused by this bug?  The only known effect
of this bug is the extraneous log entries; it is not known to cause pam
modules to return different results.

You can test this by temporarily editing /etc/pam.d/common-auth to list
'nullok' instead of 'nullok_secure'.  If your problem persists, then it is
unrelated to this bug.

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https://bugs.launchpad.net/bugs/1860826

Title:
  pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or
  directory

Status in pam package in Ubuntu:
  Confirmed
Status in pam source package in Groovy:
  Confirmed
Status in pam package in Debian:
  New

Bug description:
  Hello, after upgrading to focal I found the following in my journalctl
  output:

  Jan 24 23:07:00 millbarge sudo[32120]: pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or directory
  Jan 24 23:07:01 millbarge sudo[32120]: pam_unix(sudo:auth): Couldn't open /etc/securetty: No such file or directory

  
  The login package stopped packaging this file:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731656
  and now forcibly removes the file:
  https://paste.ubuntu.com/p/myh9cGWrHD/

  However, the pam package's pam_unix.so module has not yet been adapted to ignore this file:
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=674857#25

  Thanks

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: libpam-modules 1.3.1-5ubuntu4
  ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3
  Uname: Linux 5.4.0-9-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu15
  Architecture: amd64
  Date: Fri Jan 24 23:35:33 2020
  ProcEnviron:
   TERM=rxvt-unicode-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: pam
  UpgradeStatus: Upgraded to focal on 2020-01-24 (0 days ago)

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