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@ -1,7 +1,7 @@
Changes in version 0.2.8.2-alpha - 2016-03-??
Tor 0.2.8.2-alpha is the second alpha in its series. It fixes numerous
bugs in earlier versions of Tor, including some that prevented
authorities using Tor 0.2.7 from running correctly. IPv6 and directory
authorities using Tor 0.2.7 from running correctly. IPv6 and directory
support should also be much improved.
o New system requirements:
@ -25,6 +25,40 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
bugfix on Tor 0.1.1.11-alpha, which fixed a related bug
incompletely. Reported by Guido Vranken.
o Major bugfixes (bridges, pluggable transports):
- Modify the check for OR connections to private addresses. Allow
bridges on private addresses, including pluggable transports that
ignore the (potentially private) address in the bridge line. Fixes
bug 18517; bugfix on 0.2.8.1-alpha. Reported by "gk", patch
by "teor".
o Major bugfixes (compilation):
- Repair hardened builds under the clang compiler. Previously, our
use of _FORTIFY_SOURCE would conflict with clang's address
sanitizer. Fixes bug 14821; bugfix on 0.2.5.4-alpha.
o Major bugfixes (crash on shutdown):
- Fix a segfault during startup: If Unix domain socket was
configured as listener (such as a ControlSocket or a SocksPort
"unix:" socket), and tor was started as root but not configured to
switch to another user, tor would segfault while trying to string
compare a NULL value. Fixes bug 18261; bugfix on 0.2.8.1-alpha.
Patch by weasel.
- Correctly handle detaching circuits from muxes when shutting down.
Fixes bug 18116; bugfix on 0.2.8.1-alpha.
- Fix an assert-on-exit bug related to counting memory usage in
rephist.c. Fixes bug 18651; bugfix on 0.2.8.1-alpha.
o Major bugfixes (dns proxy mode, crash):
- Avoid crashing when running as a DNS proxy. Fixes bug 16248;
bugfix on 0.2.0.1-alpha. Patch from 'cypherpunks'.
o Major bugfixes (relays, bridge clients):
- Ensure relays always allow IPv4 OR and Dir connections. Ensure
bridge clients use the address configured in the bridge line.
Fixes bug 18348; bugfix on 0.2.8.1-alpha. Reported by sysrqb,
patch by teor.
o Major bugfixes (voting):
- Actually enable Ed25519-based directory collation. Previously, the
code had been written, but some debugging code that had
@ -41,60 +75,11 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
keeping its Ed25519 identity. Fixes bug 17668; fixes part of bug
18318. Bugfix on 0.2.7.2-alpha.
o Major bugfixes (dns proxy mode, crash):
- Avoid crashing when running as a DNS proxy. Fixes bug 16248;
bugfix on 0.2.0.1-alpha. Patch from 'cypherpunks'.
o Major bugfixes (bridges, pluggable transports):
- Modify the check for OR connections to private addresses. Allow
bridges on private addresses, including pluggable transports that
ignore the (potentially private) address in the bridge line. Fixes
bug 18517; bugfix on 0.2.8.1-alpha. Reported by "gk", patch
by "teor".
o Major bugfixes (compilation):
- Repair hardened builds under the clang compiler. Previously, our
use of _FORTIFY_SOURCE would conflict with clang's address
sanitizer. Fixes bug 14821; bugfix on 0.2.5.4-alpha.
o Major bugfixes (crash on shutdown):
- Fix a segfault during startup: If Unix domain socket was configured as
listener (such as a ControlSocket or a SocksPort "unix:" socket), and
tor was started as root but not configured to switch to another
user, tor would segfault while trying to string compare a NULL
value. Fixes bug 18261; bugfix on 0.2.8.1-alpha. Patch by weasel.
- Correctly handle detaching circuits from muxes when
shutting down. Fixes bug 18116; bugfix
on 0.2.8.1-alpha.
- Fix an assert-on-exit bug related to counting memory usage
in rephist.c. Fixes bug 18651; bugfix on 0.2.8.1-alpha.
o Major bugfixes (relays, bridge clients):
- Ensure relays always allow IPv4 OR and Dir connections. Ensure
bridge clients use the address configured in the bridge line.
Fixes bug 18348; bugfix on 0.2.8.1-alpha. Reported by sysrqb,
patch by teor.
o Minor features (security, win32):
- Set SO_EXCLUSIVEADDRUSE on Win32 to avoid a local port-stealing
attack. Fixes bug 18123; bugfix on all tor versions. Patch
by "teor".
o Minor features (hidden service directory):
- Streamline relay-side hsdir handling: when relays consider whether
to accept an uploaded hidden service descriptor, they no longer
check whether they are one of the relays in the network that is
"supposed" to handle that descriptor. Implements ticket 18332.
o Minor features (IPv6):
- Add ClientPreferIPv6DirPort, which is set to 0 by default. If set
to 1, tor prefers IPv6 directory addresses.
- Add ClientUseIPv4, which is set to 1 by default. If set to 0, tor
avoids using IPv4 for client OR and directory connections.
- Try harder to fulfil IP version restrictions ClientUseIPv4 0 and
ClientUseIPv6 0; and the preferences ClientPreferIPv6ORPort and
ClientPreferIPv6DirPort. Closes ticket 17840; patch by "teor".
o Minor features (bug-resistance):
- Make Tor survive errors involving connections without a
corresponding event object. Previously we'd fail with an
@ -117,17 +102,33 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
o Minor features (crypto):
- Validate the hard-coded Diffie-Hellman parameters and ensure that
p is a safe prime, and g is a suitable generator. Closes ticket 18221.
p is a safe prime, and g is a suitable generator. Closes
ticket 18221.
o Minor features (geoip):
- Update geoip and geoip6 to the March 3 2016 Maxmind GeoLite2
Country database.
o Minor features (hidden service directory):
- Streamline relay-side hsdir handling: when relays consider whether
to accept an uploaded hidden service descriptor, they no longer
check whether they are one of the relays in the network that is
"supposed" to handle that descriptor. Implements ticket 18332.
o Minor features (IPv6):
- Add ClientPreferIPv6DirPort, which is set to 0 by default. If set
to 1, tor prefers IPv6 directory addresses.
- Add ClientUseIPv4, which is set to 1 by default. If set to 0, tor
avoids using IPv4 for client OR and directory connections.
- Try harder to fulfil IP version restrictions ClientUseIPv4 0 and
ClientUseIPv6 0; and the preferences ClientPreferIPv6ORPort and
ClientPreferIPv6DirPort. Closes ticket 17840; patch by "teor".
o Minor features (linux seccomp2 sandbox):
- Reject attempts to change our Address with "Sandbox 1"
enabled. Changing Address with Sandbox turned on would never
actually work, but previously it would fail in strange and
confusing ways. Found while fixing 18548.
- Reject attempts to change our Address with "Sandbox 1" enabled.
Changing Address with Sandbox turned on would never actually work,
but previously it would fail in strange and confusing ways. Found
while fixing 18548.
o Minor features (robustness):
- Exit immediately with an error message if the code attempts to use
@ -137,11 +138,11 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
o Minor features (unix domain sockets):
- Add a new per-socket option, RelaxDirModeCheck, to allow creating
Unix domain sockets without checking the permissions on the parent
directory. (Tor checks permissions by default because some operating
systems only check permissions on the parent directory. However, some
operating systems do look at permissions on the socket, and tor's default
check is unneeded.) Closes ticket 18458. Patch
by weasel.
directory. (Tor checks permissions by default because some
operating systems only check permissions on the parent directory.
However, some operating systems do look at permissions on the
socket, and tor's default check is unneeded.) Closes ticket 18458.
Patch by weasel.
o Minor bugfixes (exit policies, security):
- Refresh an exit relay's exit policy when interface addresses
@ -159,10 +160,9 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
- Do not link the unit tests against both the testing and non-
testing versions of the static libraries. Fixes bug 18490; bugfix
on 0.2.7.1-alpha.
- Avoid spurious failures from configure files related
to calling exit(0) in TOR_SEARCH_LIBRARY.
Fixes bug 18625; bugfix on 0.2.0.1-alpha.
Patch from "cypherpunks".
- Avoid spurious failures from configure files related to calling
exit(0) in TOR_SEARCH_LIBRARY. Fixes bug 18625; bugfix on
0.2.0.1-alpha. Patch from "cypherpunks".
- Silence spurious clang-scan warnings in the ed25519_donna code by
explicitly initialising some objects. Fixes bug 18384; bugfix on
0f3eeca9 in 0.2.7.2-alpha. Patch by "teor".
@ -170,9 +170,8 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
o Minor bugfixes (client, bootstrap):
- Count receipt of new microdescriptors as progress towards
bootstrapping. Previously, with EntryNodes set, Tor might not
successfully repopulate the guard set on bootstrapping.
Fixes bug 16825; bugfix
on 0.2.3.1-alpha.
successfully repopulate the guard set on bootstrapping. Fixes bug
16825; bugfix on 0.2.3.1-alpha.
o Minor bugfixes (code correctness):
- Update to the latest version of Trunnel, which tries harder to
@ -208,14 +207,15 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
0.2.4.7-alpha. Reported by "atagar", patch by "teor".
o Minor bugfixes (hidden service, client):
- Handle the case where the user makes several fast consecutive requests to the same .onion
address. Previously, the first six requests would each trigger a
descriptor fetch, each picking a directory
(there are 6 overall) and the seventh one would fail because no
directories were left, thereby triggering a close on all current directory
connections asking for the hidden service.
The solution here is to not close the directory connections if we have pending directory
fetch. Fixes bug 15937; bugfix on tor-0.2.7.1-alpha.
- Handle the case where the user makes several fast consecutive
requests to the same .onion address. Previously, the first six
requests would each trigger a descriptor fetch, each picking a
directory (there are 6 overall) and the seventh one would fail
because no directories were left, thereby triggering a close on
all current directory connections asking for the hidden service.
The solution here is to not close the directory connections if we
have pending directory fetch. Fixes bug 15937; bugfix
on tor-0.2.7.1-alpha.
o Minor bugfixes (hidden service, control port):
- Add the onion address to the HS_DESC event for the UPLOADED action
@ -230,15 +230,15 @@ Changes in version 0.2.8.2-alpha - 2016-03-??
- Avoid a 10-second delay when starting as a client with "Sandbox 1"
enabled and no DNS resolvers configured. This should help TAILS
start up faster. Fixes bug 18548; bugfix on 0.2.5.1-alpha.
- Fix the sandbox's interoprability with unix domain sockets under setuid.
Fixes bug 18253; bugfix on 0.2.8.1-alpha.
- Fix the sandbox's interoprability with unix domain sockets under
setuid. Fixes bug 18253; bugfix on 0.2.8.1-alpha.
- Allow the setrlimit syscall, and the prlimit and prlimit64
syscalls, which some libc implementations use under the hood.
Fixes bug 15221; bugfix on 0.2.5.1-alpha.
o Minor bugfixes (logging):
- When logging information about an unparsable networkstatus vote
or consensus, do not say "vote" when we mean consensus. Fixes bug
- When logging information about an unparsable networkstatus vote or
consensus, do not say "vote" when we mean consensus. Fixes bug
18368; bugfix on 0.2.0.8-alpha.
- Scrub service in from "unrecognized service ID" log messages.
Fixes bug 18600; bugfix on 0.2.4.11-alpha.