Public bug reported:

[Impact]

 * Ubuntu Server 20.04 LTS (focal) is a good basis for running a Tor
bridge, helping censored users to access the Tor network. A setup guide
for Ubuntu is provided by the Tor project [1]. The Tor bridge requires
the package obfs4proxy, which is available in version 0.0.8-1
(universe).

 * The outdated version in focal, 0.0.8-1, is responsible for error
messages in the log from Tor Browser and causes slow and possibly
failing connection (bootstrap) to the Tor network, see related bug
report [2]. The more recent version of obfs4proxy solves the issue [3,
4].

[Scope]

 * The package obfs4proxy is available as version 0.0.13-1 in jammy

 * Please backport to focal

[Other Info]

 * The package obfs4proxy is available as version 0.0.13-1~bpo11+1 in
Debian bullseye-backports

[References]

[1] https://community.torproject.org/relay/setup/bridge/debian-ubuntu/
[2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/40804
[3] https://gitlab.torproject.org/tpo/anti-censorship/bridgestrap/-/issues/32
[4] 
https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/obfs4/-/issues/33736

** Affects: obfs4proxy (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1967003

Title:
  [BPO] obfs4proxy/0.0.13-1 from jammy

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