Quoting Toralf Förster (2022-10-14 18:08:38)

On 10/14/22 11:28, meskio wrote:

...

The latest version of obfs4proxy (0.0.14) comes with an important security fix.

Is there a Changelog available ?

The upstream changelog is here: https://gitlab.com/yawning/obfs4/-/blob/master/ChangeLog But I understand is not easy to understand what the problem is from that changelog.

I was pointed out today that "important security fix" might be confusing. To be clear this is 'obfuscation' security fix, this means before 0.0.14 it was possible for an observer on the network to distinguish obfs4 traffic. So is a security problem from the obfs4 user perspective.

But is not any risk for bridge operators. An attacker can *not* exploit this issue to do any harm to the operator.

Quoting Toralf Förster (2022-10-16 11:23:18)

On 10/16/22 09:50, Toralf Förster wrote:

...

After configuring the installation of the unattended_upgrade package to consider all packages [1] the new obfs4proxy was installed - but Tor was not restarted nor obfs4proxy reloaded.

Isn't this a task for the software package ?

And IMO the Debian package should re-apply any setcap settings made to the exe before, eg.:

    setcap cap_net_bind_service=+ep /usr/bin/obfs4proxy

or?

Will be nice to add those fixes to the package. Maybe you can open two issues on the debian bugtracker for them. https://www.debian.org/Bugs/

Or feel free to directly send patches to the package: https://salsa.debian.org/pkg-privacy-team/obfs4proxy

Thanks for noticing.

Quoting Toralf Förster (2022-10-17 12:56:04)

On 10/17/22 11:41, meskio wrote:

...

Will be nice to add those fixes to the package. Maybe you can open two issues on the debian bugtracker for them.

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021911.

Thank you :)

Hello: Is this update not available by running apt-get update && apt

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-------- Original Message -------- On Nov 3, 2022, 10:34 AM, meskio wrote:

A reminder: If you operate a obfs4 bridge, please upgrade obfs4proxy to 0.0.14 and restart the tor daemon. It is important to keep the users of your bridge safe. Thank you. Quoting meskio (2022-10-14 11:28:44) > The latest version of obfs4proxy (0.0.14) comes with an important security > fix. > If you are running a obfs4 Tor bridge please upgrade as soon as possible. > > If you use debian you can find the Debian package in stable-backports: > https://packages.debian.org/stable-backports/obfs4proxy > > If you use docker you'll find the latest version in docker hub: > https://hub.docker.com/r/thetorproject/obfs4-bridge/ > > Or you can find the source code in the upstream repository: > https://gitlab.com/yawning/obfs4 > > If you need help upgrading your relay, please use this mailing list or the Tor > Forum: > https://forum.torproject.net/c/support/relay-operator/17 > > We appreciate a lot your effort and time! -- meskio | https://meskio.net/ -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- My contact info: https://meskio.net/crypto.txt -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Nos vamos a Croatan._______________________________________________ tor-relays mailing list tor-relays@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays