Tor 0.2.0.35 fixes a big bug that was causing Tor relays with dynamic
IP addresses to disappear from the network. It also fixes a rare crash
bug on fast exit relays.
https://www.torproject.org/easy-download.html
Changes in version 0.2.0.35 - 2009-06-24
o Security fix:
- Avoid crashing in the presence of certain malformed descriptors.
Found by lark, and by automated fuzzing.
- Fix an edge case where a malicious exit relay could convince a
controller that the client's DNS question resolves to an internal IP
address. Bug found and fixed by "optimist"; bugfix on 0.1.2.8-beta.
o Major bugfixes:
- Finally fix the bug where dynamic-IP relays disappear when their
IP address changes: directory mirrors were mistakenly telling
them their old address if they asked via begin_dir, so they
never got an accurate answer about their new address, so they
just vanished after a day. For belt-and-suspenders, relays that
don't set Address in their config now avoid using begin_dir for
all direct connections. Should fix bugs 827, 883, and 900.
- Fix a timing-dependent, allocator-dependent, DNS-related crash bug
that would occur on some exit nodes when DNS failures and timeouts
occurred in certain patterns. Fix for bug 957.
o Minor bugfixes:
- When starting with a cache over a few days old, do not leak
memory for the obsolete router descriptors in it. Bugfix on
0.2.0.33; fixes bug 672.
- Hidden service clients didn't use a cached service descriptor that
was older than 15 minutes, but wouldn't fetch a new one either,
because there was already one in the cache. Now, fetch a v2
descriptor unless the same descriptor was added to the cache within
the last 15 minutes. Fixes bug 997; reported by Marcus Griep.
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