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forward-port the 0.2.3.23-rc changelog
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ChangeLog
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ChangeLog
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Changes in version 0.2.3.23-rc - 2012-10-20
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Tor 0.2.3.23-rc adds a new v3 directory authority, fixes a privacy
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vulnerability introduced by a change in OpenSSL, and fixes a variety
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of smaller bugs in preparation for the release.
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o New directory authorities:
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- Add Faravahar (run by Sina Rabbani) as the ninth v3 directory
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authority. Closes ticket 5749.
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o Major bugfixes (security/privacy):
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- Disable TLS session tickets. OpenSSL's implementation was giving
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our TLS session keys the lifetime of our TLS context objects, when
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perfect forward secrecy would want us to discard anything that
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could decrypt a link connection as soon as the link connection
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was closed. Fixes bug 7139; bugfix on all versions of Tor linked
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against OpenSSL 1.0.0 or later. Found by Florent Daignière.
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- Discard extraneous renegotiation attempts once the V3 link
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protocol has been initiated. Failure to do so left us open to
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a remotely triggerable assertion failure. Fixes CVE-2012-2249;
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bugfix on 0.2.3.6-alpha. Reported by "some guy from France".
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o Major bugfixes:
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- Fix a possible crash bug when checking for deactivated circuits
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in connection_or_flush_from_first_active_circuit(). Fixes bug 6341;
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bugfix on 0.2.2.7-alpha. Bug report and fix received pseudonymously.
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o Minor bugfixes (on 0.2.3.x):
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- Fix two cases in src/or/transports.c where we were calling
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fmt_addr() twice in a parameter list. Bug found by David
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Fifield. Fixes bug 7014; bugfix on 0.2.3.9-alpha.
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- Convert an assert in the pathbias code to a log message. The assert
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appears to only be triggerable by Tor2Web mode. Fixes bug 6866;
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bugfix on 0.2.3.17-beta.
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- Fix memory leaks whenever we logged any message about the "path
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bias" detection. Fixes bug 7022; bugfix on 0.2.3.21-rc.
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o Minor bugfixes (on 0.2.2.x and earlier):
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- Don't serve or accept v2 hidden service descriptors over a relay's
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DirPort. It's never correct to do so, and disabling it might
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make it more annoying to exploit any bugs that turn up in the
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descriptor-parsing code. Fixes bug 7149.
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- When relays refuse a "create" cell because their queue of pending
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create cells is too big (typically because their cpu can't keep up
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with the arrival rate), send back reason "resource limit" rather
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than reason "internal", so network measurement scripts can get a
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more accurate picture. Bugfix on 0.1.1.11-alpha; fixes bug 7037.
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- Correct file sizes when reading binary files on Cygwin, to avoid
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a bug where Tor would fail to read its state file. Fixes bug 6844;
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bugfix on 0.1.2.7-alpha.
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- Avoid undefined behaviour when parsing the list of supported
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rendezvous/introduction protocols in a hidden service descriptor.
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Previously, Tor would have confused (as-yet-unused) protocol version
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numbers greater than 32 with lower ones on many platforms. Fixes
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bug 6827; bugfix on 0.2.0.10-alpha. Found by George Kadianakis.
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o Documentation fixes:
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- Clarify that hidden services are TCP only. Fixes bug 6024.
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Changes in version 0.2.4.3-alpha - 2012-09-22
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Tor 0.2.4.3-alpha fixes another opportunity for a remotely triggerable
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assertion, resumes letting relays test reachability of their DirPort,
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