Tor 0.3.4.9 is the second stable release in its series; it backports
numerous fixes, including a fix for a bandwidth management bug that
was causing memory exhaustion on relays. Anyone running an earlier
version of Tor 0.3.4.9 should upgrade.
o Major bugfixes (compilation, backport from 0.3.5.3-alpha):
- Fix compilation on ARM (and other less-used CPUs) when compiling
with OpenSSL before 1.1. Fixes bug 27781; bugfix on 0.3.4.1-alpha.
o Major bugfixes (mainloop, bootstrap, backport from 0.3.5.3-alpha):
- Make sure Tor bootstraps and works properly if only the
ControlPort is set. Prior to this fix, Tor would only bootstrap
when a client port was set (Socks, Trans, NATD, DNS or HTTPTunnel
port). Fixes bug 27849; bugfix on 0.3.4.1-alpha.
o Major bugfixes (relay, backport from 0.3.5.3-alpha):
- When our write bandwidth limit is exhausted, stop writing on the
connection. Previously, we had a typo in the code that would make
us stop reading instead, leading to relay connections being stuck
indefinitely and consuming kernel RAM. Fixes bug 28089; bugfix
on 0.3.4.1-alpha.
o Major bugfixes (restart-in-process, backport from 0.3.5.1-alpha):
- Fix a use-after-free error that could be caused by passing Tor an
impossible set of options that would fail during options_act().
Fixes bug 27708; bugfix on 0.3.3.1-alpha.
o Minor features (continuous integration, backport from 0.3.5.1-alpha):
- Don't do a distcheck with --disable-module-dirauth in Travis.
Implements ticket 27252.
- Only run one online rust build in Travis, to reduce network
errors. Skip offline rust builds on Travis for Linux gcc, because
they're redundant. Implements ticket 27252.
- Skip gcc on OSX in Travis CI, because it's rarely used. Skip a
duplicate hardening-off build in Travis on Tor 0.2.9. Skip gcc on
Linux with default settings, because all the non-default builds
use gcc on Linux. Implements ticket 27252.
o Minor features (continuous integration, backport from 0.3.5.3-alpha):
- Use the Travis Homebrew addon to install packages on macOS during
Travis CI. The package list is the same, but the Homebrew addon
does not do a `brew update` by default. Implements ticket 27738.
o Minor features (geoip):
- Update geoip and geoip6 to the October 9 2018 Maxmind GeoLite2
Country database. Closes ticket 27991.
o Minor bugfixes (32-bit OSX and iOS, timing, backport from 0.3.5.2-alpha):
- Fix an integer overflow bug in our optimized 32-bit millisecond-
difference algorithm for 32-bit Apple platforms. Previously, it
would overflow when calculating the difference between two times
more than 47 days apart. Fixes part of bug 27139; bugfix
on 0.3.4.1-alpha.
- Improve the precision of our 32-bit millisecond difference
algorithm for 32-bit Apple platforms. Fixes part of bug 27139;
bugfix on 0.3.4.1-alpha.
- Relax the tolerance on the mainloop/update_time_jumps test when
running on 32-bit Apple platforms. Fixes part of bug 27139; bugfix
on 0.3.4.1-alpha.
o Minor bugfixes (C correctness, to appear in 0.3.5.4-alpha):
- Avoid undefined behavior in an end-of-string check when parsing
the BEGIN line in a directory object. Fixes bug 28202; bugfix
on 0.2.0.3-alpha.
o Minor bugfixes (CI, appveyor, to appear in 0.3.5.4-alpha):
- Only install the necessary mingw packages during our appveyor
builds. This change makes the build a little faster, and prevents
a conflict with a preinstalled mingw openssl that appveyor now
ships. Fixes bugs 27943 and 27765; bugfix on 0.3.4.2-alpha.
o Minor bugfixes (code safety, backport from 0.3.5.3-alpha):
- Rewrite our assertion macros so that they no longer suppress the
compiler's -Wparentheses warnings. Fixes bug 27709; bugfix
o Minor bugfixes (continuous integration, backport from 0.3.5.1-alpha):
- Stop reinstalling identical packages in our Windows CI. Fixes bug
27464; bugfix on 0.3.4.1-alpha.
o Minor bugfixes (directory authority, to appear in 0.3.5.4-alpha):
- Log additional info when we get a relay that shares an ed25519 ID
with a different relay, instead making a BUG() warning. Fixes bug
27800; bugfix on 0.3.2.1-alpha.
o Minor bugfixes (directory connection shutdown, backport from 0.3.5.1-alpha):
- Avoid a double-close when shutting down a stalled directory
connection. Fixes bug 26896; bugfix on 0.3.4.1-alpha.
o Minor bugfixes (HTTP tunnel, backport from 0.3.5.1-alpha):
- Fix a bug warning when closing an HTTP tunnel connection due to an
HTTP request we couldn't handle. Fixes bug 26470; bugfix
on 0.3.2.1-alpha.
o Minor bugfixes (netflow padding, backport from 0.3.5.1-alpha):
- Ensure circuitmux queues are empty before scheduling or sending
padding. Fixes bug 25505; bugfix on 0.3.1.1-alpha.
o Minor bugfixes (onion service v3, backport from 0.3.5.1-alpha):
- When the onion service directory can't be created or has the wrong
permissions, do not log a stack trace. Fixes bug 27335; bugfix
on 0.3.2.1-alpha.
o Minor bugfixes (onion service v3, backport from 0.3.5.2-alpha):
- Close all SOCKS request (for the same .onion) if the newly fetched
descriptor is unusable. Before that, we would close only the first
one leaving the other hanging and let to time out by themselves.
Fixes bug 27410; bugfix on 0.3.2.1-alpha.
o Minor bugfixes (onion service v3, backport from 0.3.5.3-alpha):
- When selecting a v3 rendezvous point, don't only look at the
protover, but also check whether the curve25519 onion key is
present. This way we avoid picking a relay that supports the v3
rendezvous but for which we don't have the microdescriptor. Fixes
bug 27797; bugfix on 0.3.2.1-alpha.
o Minor bugfixes (protover, backport from 0.3.5.3-alpha):
- Reject protocol names containing bytes other than alphanumeric
characters and hyphens ([A-Za-z0-9-]). Fixes bug 27316; bugfix
on 0.2.9.4-alpha.
o Minor bugfixes (rust, backport from 0.3.5.1-alpha):
- Compute protover votes correctly in the rust version of the
protover code. Previously, the protover rewrite in 24031 allowed
repeated votes from the same voter for the same protocol version
to be counted multiple times in protover_compute_vote(). Fixes bug
27649; bugfix on 0.3.3.5-rc.
- Reject protover names that contain invalid characters. Fixes bug
27687; bugfix on 0.3.3.1-alpha.
o Minor bugfixes (rust, backport from 0.3.5.2-alpha):
- protover_all_supported() would attempt to allocate up to 16GB on
some inputs, leading to a potential memory DoS. Fixes bug 27206;
bugfix on 0.3.3.5-rc.
o Minor bugfixes (rust, directory authority, to appear in 0.3.5.4-alpha):
- Fix an API mismatch in the rust implementation of
protover_compute_vote(). This bug could have caused crashes on any
directory authorities running Tor with Rust (which we do not yet
recommend). Fixes bug 27741; bugfix on 0.3.3.6.
o Minor bugfixes (rust, to appear in 0.3.5.4-alpha):
- Fix a potential null dereference in protover_all_supported(). Add
a test for it. Fixes bug 27804; bugfix on 0.3.3.1-alpha.
- Return a string that can be safely freed by C code, not one
created by the rust allocator, in protover_all_supported(). Fixes
bug 27740; bugfix on 0.3.3.1-alpha.
o Minor bugfixes (testing, backport from 0.3.5.1-alpha):
- If a unit test running in a subprocess exits abnormally or with a
nonzero status code, treat the test as having failed, even if the
test reported success. Without this fix, memory leaks don't cause
the tests to fail, even with LeakSanitizer. Fixes bug 27658;
bugfix on 0.2.2.4-alpha.
o Minor bugfixes (testing, backport from 0.3.5.3-alpha):
- Make the hs_service tests use the same time source when creating
the introduction point and when testing it. Now tests work better
on very slow systems like ARM or Travis. Fixes bug 27810; bugfix
on 0.3.2.1-alpha.
o Minor bugfixes (testing, to appear in 0.3.5.4-alpha):
- Treat backtrace test failures as expected on BSD-derived systems
(NetBSD, OpenBSD, and macOS/Darwin) until we solve bug 17808.
(FreeBSD failures have been treated as expected since 18204 in
0.2.8.) Fixes bug 27948; bugfix on 0.2.5.2-alpha.
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