Hi, all! There is a new stable release of the Tor source code, with
fixes for several important bugs.
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You can download the source from the usual place on the website.
Packages should be up in a few days.
(There is also a concurrent release of Tor 0.2.9.3-alpha; for alpha
announcements, please see tor-talk@ or the blog.)
====
Changes in version 0.2.8.8 - 2016-09-23
Tor 0.2.8.8 fixes two crash bugs present in previous versions of the
0.2.8.x series. Relays running 0.2.8.x should upgrade, as should users
who select public relays as their bridges.
o Major bugfixes (crash):
- Fix a complicated crash bug that could affect Tor clients
configured to use bridges when replacing a networkstatus consensus
in which one of their bridges was mentioned. OpenBSD users saw
more crashes here, but all platforms were potentially affected.
Fixes bug 20103; bugfix on 0.2.8.2-alpha.
o Major bugfixes (relay, OOM handler):
- Fix a timing-dependent assertion failure that could occur when we
tried to flush from a circuit after having freed its cells because
of an out-of-memory condition. Fixes bug 20203; bugfix on
0.2.8.1-alpha. Thanks to "cypherpunks" for help diagnosing
this one.
o Minor feature (fallback directories):
- Remove broken fallbacks from the hard-coded fallback directory
list. Closes ticket 20190; patch by teor.
o Minor features (geoip):
- Update geoip and geoip6 to the September 6 2016 Maxmind GeoLite2
Country database.
Tor Browser 6.0.5 is now available from the Tor Browser Project page [1]
and also from our distribution directory [2].
1: https://www.torproject.org/download/download-easy.html
2: https://www.torproject.org/dist/torbrowser/6.0.5/
This release features important security updates to Firefox including
the recently disclosed extension update vulnerability [3]. All users
should upgrade as soon as possible.
3: http://seclists.org/dailydave/2016/q3/51
That vulnerability [4] allows an attacker who is able to obtain a valid
certificate for addons.mozilla.org to impersonate Mozilla's servers and
to deliver a malicious extension update, e.g. for NoScript. This could
lead to arbitrary code execution. Moreover, other built-in certificate
pinnings are affected as well. Obtaining such a certificate is not an
easy task, but it's within reach of powerful adversaries (e.g. nation states).
4: https://bugzilla.mozilla.org/show_bug.cgi?id=1303127
Thanks to everyone who helped investigating this bug and getting a bugfix
release out as fast as possible.
We are currently building the alpha and hardened bundles (6.5a3 and
6.5a3-hardened) that will contain the fix for alpha/hardened channel
users. We expect them to get released at the beginning of next week.
Until then users are strongly encouraged to use Tor Browser 6.0.5.
Apart from fixing Firefox vulnerabilities this release comes with a new
Tor stable version (0.2.8.7), an updated HTTPS-Everywhere (5.2.4), and
fixes minor bugs.
Here is the full changelog since Tor Browser 6.0.4:
* All Platforms
* Update Firefox to 45.4.0esr
* Update Tor to 0.2.8.7
* Update Torbutton to 1.9.5.7
* Bug 18589: Clear site security settings during New Identity
* Bug 19906: "Maximizing Tor Browser" Notification can exist multiple times
* Update HTTPS-Everywhere to 5.2.4
* Bug 20092: Rotate ports for default obfs4 bridges
* Bug 20040: Add update support for unpacked HTTPS Everywhere
* Windows
* Bug 19725: Remove old updater files left on disk after upgrade to 6.x
* Linux
* Bug 19725: Remove old updater files left on disk after upgrade to 6.x
* Android
* Bug 19706: Store browser data in the app home directory
* Build system
* All platforms
* Upgrade Go to 1.4.3
