[Expired for libreoffice (Ubuntu) because there has been no activity for
60 days.]
** Changed in: libreoffice (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1334056
Title:
LibreOffice opens a TCP port on localhost and doesn't start if the
port is blocked
Status in libreoffice package in Ubuntu:
Expired
Bug description:
I am on Kubuntu 14.04 amd64 with latest packages of everything
(libreoffice-core = Version: 1:4.2.4-0ubuntu2).
LibreOffice was working fine until about 2014-06-22 - thats the modification
date of the last file which I edited with it.
Somewhere between 2014-06-22 and 2014-06-24, a package was auto-updated and
now it won't start anymore.
It hangs at the splash screen.
I've figured out the reason: LibreOffice opens a random TCP port on 127.0.0.1
and tries to connect to it. Because I have blocked connections to localhost in
my firewall, the connection fails, resulting in the hang. If I open the port,
it works.
I cannot add a firewall rule to fix this permanently though because the port
is chosen randomly.
And why does a text editor need a TCP port anyway?
Please do one of the following:
- Check whether this is debug functionality which has accidentally been left
in. It might be a security issue, so I filed this as security. Please remove
the flag if it is not.
- Add a way of configuring it to disable the TCP stuff.
- Add a way of configuring which port is used .
Please do not tell me that denying access to localhost is nonsense:
There are certain daemons which do not provide authentication
mechanisms, and there are multiuser machines. If I want to protect
those daemons on a multiuser machine I need to deny localhost
connections by default and work with whitelisting allowed types of
connections.
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