Public bug reported:
When I'm connected to my desktop computer via ssh, with the desktop
computer's desktop environment running and unlocked, trying to decrypt a
gpg-encrypted file causes gpg-agent to invoke pinentry-gnome3 on the
desktop. Assuming I'm physically elsewhere, I'm obviously unable to use
the prompt on the desktop to enter the passphrase.
This happens despite both pinentry-tty and pinentry-curses being present
on the desktop (in addition to pinentry-gnome3), and having GPG_TTY
point to the correct tty (export GPG_TTY=$(tty)). Under these
circumstances I'd expect gpg-agent to gracefully fall back to non-
graphical alternatives.
Granted, I've so far only simulated being physically elsewhere by first
ssh'ing out of the desktop, then back in again from the other end. If
gpg-agent is using some kind of magic to detect that in reality I'm
still physically on the desktop, then this report is invalid (although
I'd still feel uneasy about such magic).
== Steps to reproduce ==
1. log in to desktop computer A
2. use another computer B to ssh in to the desktop computer
3. still physically on B, invoke `gpg -d encrypted.gpg` on A (over ssh)
== What happens ==
Graphical passphrase prompt pops up on A, while your ssh terminal on B waits
== What I expect to happen ==
For a non-graphical passphrase prompt (such as pinentry-tty or pinentry-curses)
to appear on B's ssh terminal
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gpg-agent 2.2.4-1ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 22 16:04:09 2018
InstallationDate: Installed on 2016-10-13 (525 days ago)
InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=fi_FI.UTF-8
SHELL=/bin/bash
SourcePackage: gnupg2
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnupg2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1758071
Title:
Graphical prompt (pinentry-gnome3) invoked even when connected via ssh
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