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reflow changelog.
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Nick Mathewson
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53
ChangeLog
53
ChangeLog
@ -3,9 +3,9 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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improvements for clients and relays, including blacklisting authority
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signing keys that were used while susceptible to the OpenSSL
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"heartbleed" bug, fixing two expensive functions on busy relays,
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improved TLS ciphersuite preference lists, support for run-time hardening
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on compilers that support AddressSanitizer, and more work on the Linux
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sandbox code.
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improved TLS ciphersuite preference lists, support for run-time
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hardening on compilers that support AddressSanitizer, and more work on
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the Linux sandbox code.
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There are also several usability fixes for clients (especially clients
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that use bridges), two new TransPort protocols supported (one on
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@ -52,15 +52,15 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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uniform criteria, and includes all OpenSSL ciphersuites with
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acceptable strength and forward secrecy. Previously, we had left
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some perfectly fine ciphersuites unsupported due to omission or
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typo. Resolves bugs 11513, 11492, 11498, 11499. Bugs reported
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by 'cypherpunks'. Bugfix on 0.2.4.8-alpha.
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typo. Resolves bugs 11513, 11492, 11498, 11499. Bugs reported by
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'cypherpunks'. Bugfix on 0.2.4.8-alpha.
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- Relays now trust themselves to have a better view than clients of
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which TLS ciphersuites are better than others. (Thanks to bug 11513,
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the relay list is now well-considered, whereas the client list has
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been chosen mainly for anti-fingerprinting purposes.) Relays
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prefer: AES over 3DES; then ECDHE over DHE; then GCM over CBC;
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then SHA384 over SHA256 over SHA1; and last, AES256 over AES128.
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Resolves ticket 11528.
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which TLS ciphersuites are better than others. (Thanks to bug
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11513, the relay list is now well-considered, whereas the client
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list has been chosen mainly for anti-fingerprinting purposes.)
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Relays prefer: AES over 3DES; then ECDHE over DHE; then GCM over
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CBC; then SHA384 over SHA256 over SHA1; and last, AES256 over
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AES128. Resolves ticket 11528.
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- Clients now try to advertise the same list of ciphersuites as
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Firefox 28. This change enables selection of (fast) GCM
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ciphersuites, disables some strange old ciphers, and stops
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@ -77,18 +77,18 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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FreeBSD. To enable it, set "TransProxyType ipfw". Resolves ticket
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10267; patch from "yurivict".
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- Support OpenBSD's divert-to rules with the pf firewall for
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transparent proxy ports. To enable it, set "TransProxyType
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pf-divert". This allows Tor to run a TransPort transparent proxy
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port on OpenBSD 4.4 or later without root privileges. See the
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transparent proxy ports. To enable it, set "TransProxyType pf-
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divert". This allows Tor to run a TransPort transparent proxy port
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on OpenBSD 4.4 or later without root privileges. See the
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pf.conf(5) manual page for information on configuring pf to use
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divert-to rules. Closes ticket 10896; patch from Dana Koch.
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o Minor features (security):
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- New --enable-expensive-hardening option to enable security
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hardening options that consume nontrivial amounts of CPU and
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memory. Right now, this includes AddressSanitizer and UbSan,
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which are supported in newer versions of GCC and Clang. Closes
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ticket 11477.
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memory. Right now, this includes AddressSanitizer and UbSan, which
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are supported in newer versions of GCC and Clang. Closes ticket
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11477.
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o Minor features (log verbosity):
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- Demote the message that we give when a flushing connection times
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@ -98,8 +98,8 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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about downloading descriptors. Previously, we'd log a notice
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whenever we learned about more routers. Now, we only log a notice
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at every 5% of progress. Fixes bug 9963.
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- Warn less verbosely when receiving a malformed ESTABLISH_RENDEZVOUS
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cell. Fixes ticket 11279.
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- Warn less verbosely when receiving a malformed
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ESTABLISH_RENDEZVOUS cell. Fixes ticket 11279.
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- When we run out of usable circuit IDs on a channel, log only one
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warning for the whole channel, and describe how many circuits
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there were on the channel. Fixes part of ticket 11553.
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@ -153,8 +153,8 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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just the wrong time. Re-fixes bug 11156; bugfix on 0.2.5.3-alpha.
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o Minor bugfixes (client, logging during bootstrap):
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- Warn only once if we start logging in an unsafe way. Previously, we
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complain as many times as we had problems. Fixes bug 9870;
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- Warn only once if we start logging in an unsafe way. Previously,
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we complain as many times as we had problems. Fixes bug 9870;
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bugfix on 0.2.5.1-alpha.
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- Only report the first fatal bootstrap error on a given OR
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connection. This stops us from telling the controller bogus error
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@ -208,15 +208,16 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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harmless memory leak. Fixes bug 11278; bugfix on 0.2.5.1-alpha.
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- Don't re-initialize a second set of OpenSSL mutexes when starting
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up. Previously, we'd make one set of mutexes, and then immediately
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replace them with another. Fixes bug 11726; bugfix on 0.2.5.3-alpha.
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replace them with another. Fixes bug 11726; bugfix on
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0.2.5.3-alpha.
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- Resolve some memory leaks found by coverity in the unit tests, on
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exit in tor-gencert, and on a failure to compute digests for our
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own keys when generating a v3 networkstatus vote. These leaks
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should never have affected anyone in practice.
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o Minor bugfixes (hidden service):
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- Only retry attempts to connect to a chosen rendezvous point 8 times,
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not 30. Fixes bug 4241; bugfix on 0.1.0.1-rc.
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- Only retry attempts to connect to a chosen rendezvous point 8
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times, not 30. Fixes bug 4241; bugfix on 0.1.0.1-rc.
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o Minor bugfixes (misc code correctness):
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- Fix various instances of undefined behavior in channeltls.c,
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@ -226,8 +227,8 @@ Changes in version 0.2.5.4-alpha - 2014-04-25
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exist.) Fixes bug 10363; bugfixes on 0.1.1.1-alpha, 0.1.2.1-alpha,
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0.2.0.10-alpha, and 0.2.3.6-alpha. Reported by "bobnomnom".
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- Use the AddressSanitizer and Ubsan sanitizers (in clang-3.4) to
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fix some miscellaneous errors in our tests and codebase. Fixes
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bug 11232. Bugfixes on versions back as far as 0.2.1.11-alpha.
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fix some miscellaneous errors in our tests and codebase. Fixes bug
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11232. Bugfixes on versions back as far as 0.2.1.11-alpha.
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- Always check return values for unlink, munmap, UnmapViewOfFile;
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check strftime return values more often. In some cases all we can
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do is report a warning, but this may help prevent deeper bugs from
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