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Commit 3767a702 authored by Nick Mathewson's avatar Nick Mathewson :game_die:
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forward-port changelogs and release notes for 0.2.8.15, 0.2.9.12, 0.3.0.11, 0.3.1.7

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Changes in version 0.2.8.15 - 2017-09-18
Tor 0.2.8.15 backports a collection of bugfixes from later
Tor series.
Most significantly, it includes a fix for TROVE-2017-008, a
security bug that affects hidden services running with the
SafeLogging option disabled. For more information, see
https://trac.torproject.org/projects/tor/ticket/23490
Note that Tor 0.2.8.x will no longer be supported after 1 Jan
2018. We suggest that you upgrade to the latest stable release if
possible. If you can't, we recommend that you upgrade at least to
0.2.9, which will be supported until 2020.
o Major bugfixes (openbsd, denial-of-service, backport from 0.3.1.5-alpha):
- Avoid an assertion failure bug affecting our implementation of
inet_pton(AF_INET6) on certain OpenBSD systems whose strtol()
handling of "0xx" differs from what we had expected. Fixes bug
22789; bugfix on 0.2.3.8-alpha. Also tracked as TROVE-2017-007.
o Minor features:
- Update geoip and geoip6 to the September 6 2017 Maxmind GeoLite2
Country database.
o Minor bugfixes (compilation, mingw, backport from 0.3.1.1-alpha):
- Backport a fix for an "unused variable" warning that appeared
in some versions of mingw. Fixes bug 22838; bugfix on
0.2.8.1-alpha.
o Minor bugfixes (defensive programming, undefined behavior, backport from 0.3.1.4-alpha):
- Fix a memset() off the end of an array when packing cells. This
bug should be harmless in practice, since the corrupted bytes are
still in the same structure, and are always padding bytes,
ignored, or immediately overwritten, depending on compiler
behavior. Nevertheless, because the memset()'s purpose is to make
sure that any other cell-handling bugs can't expose bytes to the
network, we need to fix it. Fixes bug 22737; bugfix on
0.2.4.11-alpha. Fixes CID 1401591.
o Build features (backport from 0.3.1.5-alpha):
- Tor's repository now includes a Travis Continuous Integration (CI)
configuration file (.travis.yml). This is meant to help new
developers and contributors who fork Tor to a Github repository be
better able to test their changes, and understand what we expect
to pass. To use this new build feature, you must fork Tor to your
Github account, then go into the "Integrations" menu in the
repository settings for your fork and enable Travis, then push
your changes. Closes ticket 22636.
Changes in version 0.2.9.12 - 2017-09-18
Tor 0.2.9.12 backports a collection of bugfixes from later
Tor series.
Most significantly, it includes a fix for TROVE-2017-008, a
security bug that affects hidden services running with the
SafeLogging option disabled. For more information, see
https://trac.torproject.org/projects/tor/ticket/23490
o Major features (security, backport from 0.3.0.2-alpha):
- Change the algorithm used to decide DNS TTLs on client and server
side, to better resist DNS-based correlation attacks like the
DefecTor attack of Greschbach, Pulls, Roberts, Winter, and
Feamster. Now relays only return one of two possible DNS TTL
values, and clients are willing to believe DNS TTL values up to 3
hours long. Closes ticket 19769.
o Major bugfixes (crash, directory connections, backport from 0.3.0.5-rc):
- Fix a rare crash when sending a begin cell on a circuit whose
linked directory connection had already been closed. Fixes bug
21576; bugfix on 0.2.9.3-alpha. Reported by Alec Muffett.
o Major bugfixes (DNS, backport from 0.3.0.2-alpha):
- Fix a bug that prevented exit nodes from caching DNS records for
more than 60 seconds. Fixes bug 19025; bugfix on 0.2.4.7-alpha.
o Major bugfixes (linux TPROXY support, backport from 0.3.1.1-alpha):
- Fix a typo that had prevented TPROXY-based transparent proxying
from working under Linux. Fixes bug 18100; bugfix on 0.2.6.3-alpha.
Patch from "d4fq0fQAgoJ".
o Major bugfixes (openbsd, denial-of-service, backport from 0.3.1.5-alpha):
- Avoid an assertion failure bug affecting our implementation of
inet_pton(AF_INET6) on certain OpenBSD systems whose strtol()
handling of "0xx" differs from what we had expected. Fixes bug
22789; bugfix on 0.2.3.8-alpha. Also tracked as TROVE-2017-007.
o Minor features (code style, backport from 0.3.1.3-alpha):
- Add "Falls through" comments to our codebase, in order to silence
GCC 7's -Wimplicit-fallthrough warnings. Patch from Andreas
Stieger. Closes ticket 22446.
o Minor features (geoip):
- Update geoip and geoip6 to the September 6 2017 Maxmind GeoLite2
Country database.
o Minor bugfixes (bandwidth accounting, backport from 0.3.1.1-alpha):
- Roll over monthly accounting at the configured hour and minute,
rather than always at 00:00. Fixes bug 22245; bugfix on 0.0.9rc1.
Found by Andrey Karpov with PVS-Studio.
o Minor bugfixes (compilation, backport from 0.3.1.5-alpha):
- Suppress -Wdouble-promotion warnings with clang 4.0. Fixes bug 22915;
bugfix on 0.2.8.1-alpha.
- Fix warnings when building with libscrypt and openssl scrypt support
on Clang. Fixes bug 22916; bugfix on 0.2.7.2-alpha.
- When building with certain versions the mingw C header files, avoid
float-conversion warnings when calling the C functions isfinite(),
isnan(), and signbit(). Fixes bug 22801; bugfix on 0.2.8.1-alpha.
o Minor bugfixes (compilation, backport from 0.3.1.7):
- Avoid compiler warnings in the unit tests for running tor_sscanf()
with wide string outputs. Fixes bug 15582; bugfix on 0.2.6.2-alpha.
o Minor bugfixes (compilation, mingw, backport from 0.3.1.1-alpha):
- Backport a fix for an "unused variable" warning that appeared
in some versions of mingw. Fixes bug 22838; bugfix on
0.2.8.1-alpha.
o Minor bugfixes (controller, backport from 0.3.1.7):
- Do not crash when receiving a HSPOST command with an empty body.
Fixes part of bug 22644; bugfix on 0.2.7.1-alpha.
- Do not crash when receiving a POSTDESCRIPTOR command with an
empty body. Fixes part of bug 22644; bugfix on 0.2.0.1-alpha.
o Minor bugfixes (coverity build support, backport from 0.3.1.5-alpha):
- Avoid Coverity build warnings related to our BUG() macro. By
default, Coverity treats BUG() as the Linux kernel does: an
instant abort(). We need to override that so our BUG() macro
doesn't prevent Coverity from analyzing functions that use it.
Fixes bug 23030; bugfix on 0.2.9.1-alpha.
o Minor bugfixes (defensive programming, undefined behavior, backport from 0.3.1.4-alpha):
- Fix a memset() off the end of an array when packing cells. This
bug should be harmless in practice, since the corrupted bytes are
still in the same structure, and are always padding bytes,
ignored, or immediately overwritten, depending on compiler
behavior. Nevertheless, because the memset()'s purpose is to make
sure that any other cell-handling bugs can't expose bytes to the
network, we need to fix it. Fixes bug 22737; bugfix on
0.2.4.11-alpha. Fixes CID 1401591.
o Minor bugfixes (file limits, osx, backport from 0.3.1.5-alpha):
- When setting the maximum number of connections allowed by the OS,
always allow some extra file descriptors for other files. Fixes
bug 22797; bugfix on 0.2.0.10-alpha.
o Minor bugfixes (linux seccomp2 sandbox, backport from 0.3.1.5-alpha):
- Avoid a sandbox failure when trying to re-bind to a socket and
mark it as IPv6-only. Fixes bug 20247; bugfix on 0.2.5.1-alpha.
o Minor bugfixes (linux seccomp2 sandbox, backport from 0.3.1.4-alpha):
- Permit the fchmod system call, to avoid crashing on startup when
starting with the seccomp2 sandbox and an unexpected set of
permissions on the data directory or its contents. Fixes bug
22516; bugfix on 0.2.5.4-alpha.
o Minor bugfixes (relay, backport from 0.3.0.5-rc):
- Avoid a double-marked-circuit warning that could happen when we
receive DESTROY cells under heavy load. Fixes bug 20059; bugfix
on 0.1.0.1-rc.
o Minor bugfixes (voting consistency, backport from 0.3.1.1-alpha):
- Reject version numbers with non-numeric prefixes (such as +, -, or
whitespace). Disallowing whitespace prevents differential version
parsing between POSIX-based and Windows platforms. Fixes bug 21507
and part of 21508; bugfix on 0.0.8pre1.
o Build features (backport from 0.3.1.5-alpha):
- Tor's repository now includes a Travis Continuous Integration (CI)
configuration file (.travis.yml). This is meant to help new
developers and contributors who fork Tor to a Github repository be
better able to test their changes, and understand what we expect
to pass. To use this new build feature, you must fork Tor to your
Github account, then go into the "Integrations" menu in the
repository settings for your fork and enable Travis, then push
your changes. Closes ticket 22636.
Changes in version 0.3.0.11 - 2017-09-18
Tor 0.3.0.11 backports a collection of bugfixes from Tor the 0.3.1
series.
Most significantly, it includes a fix for TROVE-2017-008, a
security bug that affects hidden services running with the
SafeLogging option disabled. For more information, see
https://trac.torproject.org/projects/tor/ticket/23490
o Minor features (code style, backport from 0.3.1.7):
- Add "Falls through" comments to our codebase, in order to silence
GCC 7's -Wimplicit-fallthrough warnings. Patch from Andreas
Stieger. Closes ticket 22446.
o Minor features:
- Update geoip and geoip6 to the September 6 2017 Maxmind GeoLite2
Country database.
o Minor bugfixes (compilation, backport from 0.3.1.7):
- Avoid compiler warnings in the unit tests for calling tor_sscanf()
with wide string outputs. Fixes bug 15582; bugfix on 0.2.6.2-alpha.
o Minor bugfixes (controller, backport from 0.3.1.7):
- Do not crash when receiving a HSPOST command with an empty body.
Fixes part of bug 22644; bugfix on 0.2.7.1-alpha.
- Do not crash when receiving a POSTDESCRIPTOR command with an empty
body. Fixes part of bug 22644; bugfix on 0.2.0.1-alpha.
o Minor bugfixes (file limits, osx, backport from 0.3.1.5-alpha):
- When setting the maximum number of connections allowed by the OS,
always allow some extra file descriptors for other files. Fixes
bug 22797; bugfix on 0.2.0.10-alpha.
o Minor bugfixes (logging, relay, backport from 0.3.1.6-rc):
- Remove a forgotten debugging message when an introduction point
successfully establishes a hidden service prop224 circuit with
a client.
- Change three other log_warn() for an introduction point to
protocol warnings, because they can be failure from the network
and are not relevant to the operator. Fixes bug 23078; bugfix on
0.3.0.1-alpha and 0.3.0.2-alpha.
Changes in version 0.3.1.7 - 2017-09-18
Tor 0.3.1.7 is the first stable release in the 0.3.1 series.
With the 0.3.1 series, Tor now serves and downloads directory
information in more compact formats, to save on bandwidth overhead. It
also contains a new padding system to resist netflow-based traffic
analysis, and experimental support for building parts of Tor in Rust
(though no parts of Tor are in Rust yet). There are also numerous
small features, bugfixes on earlier release series, and groundwork for
the hidden services revamp of 0.3.2.
This release also includes a fix for TROVE-2017-008, a security bug
that affects hidden services running with the SafeLogging option
disabled. For more information, see
https://trac.torproject.org/projects/tor/ticket/23490
Per our stable release policy, we plan to support each stable release
series for at least the next nine months, or for three months after
the first stable release of the next series: whichever is longer. If
you need a release with long-term support, we recommend that you stay
with the 0.2.9 series.
Below is a list of the changes since 0.3.1.6-rc. For a list of all
changes since 0.3.0, see the ReleaseNotes file.
o Major bugfixes (security, hidden services, loggging):
- Fix a bug where we could log uninitialized stack when a certain
hidden service error occurred while SafeLogging was disabled.
Fixes bug #23490; bugfix on 0.2.7.2-alpha. This is also tracked as
TROVE-2017-008 and CVE-2017-0380.
o Minor features (defensive programming):
- Create a pair of consensus parameters, nf_pad_tor2web and
nf_pad_single_onion, to disable netflow padding in the consensus
for non-anonymous connections in case the overhead is high. Closes
ticket 17857.
o Minor features (diagnostic):
- Add a stack trace to the bug warnings that can be logged when
trying to send an outgoing relay cell with n_chan == 0. Diagnostic
attempt for bug 23105.
o Minor features (geoip):
- Update geoip and geoip6 to the September 6 2017 Maxmind GeoLite2
Country database.
o Minor bugfixes (compilation):
- Avoid compiler warnings in the unit tests for calling tor_sscanf()
with wide string outputs. Fixes bug 15582; bugfix on 0.2.6.2-alpha.
o Minor bugfixes (controller):
- Do not crash when receiving a HSPOST command with an empty body.
Fixes part of bug 22644; bugfix on 0.2.7.1-alpha.
- Do not crash when receiving a POSTDESCRIPTOR command with an empty
body. Fixes part of bug 22644; bugfix on 0.2.0.1-alpha.
o Minor bugfixes (relay):
- Inform the geoip and rephist modules about all requests, even on
relays that are only fetching microdescriptors. Fixes a bug
related to 21585; bugfix on 0.3.0.1-alpha.
o Minor bugfixes (unit tests):
- Fix a channelpadding unit test failure on slow systems by using
mocked time instead of actual time. Fixes bug 23077; bugfix
on 0.3.1.1-alpha.
Changes in version 0.3.1.6-rc - 2017-09-05
Tor 0.3.1.6-rc fixes a few small bugs and annoyances in the 0.3.1
release series, including a bug that produced weird behavior on
ReleaseNotes
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