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Forward-port the 0.2.4.14-alpha changelog

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Nick Mathewson 2013-06-18 16:25:56 -04:00
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ChangeLog
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Changes in version 0.2.4.14-alpha - 2013-06-18
Tor 0.2.4.14-alpha fixes a pair of client guard enumeration problems
present in 0.2.4.13-alpha.
o Major bugfixes:
- When we have too much memory queued in circuits (according to a new
MaxMemInCellQueues option), close the circuits consuming the most
memory. This prevents us from running out of memory as a relay if
circuits fill up faster than they can be drained. Fixes bug 9063;
bugfix on the 54th commit of Tor. This bug is a further fix beyond
bug 6252, whose fix was merged into 0.2.3.21-rc.
This change also fixes an earlier approach taken in 0.2.4.13-alpha,
where we tried to solve this issue simply by imposing an upper limit
on the number of queued cells for a single circuit. That approach
proved to be problematic, since there are ways to provoke clients to
send a number of cells in excess of any such reasonable limit. Fixes
bug 9072; bugfix on 0.2.4.13-alpha.
- Limit hidden service descriptors to at most ten introduction
points, to slow one kind of guard enumeration. Fixes bug 9002;
bugfix on 0.1.1.11-alpha.
Changes in version 0.2.4.13-alpha - 2013-06-14
Tor 0.2.4.13-alpha fixes a variety of potential remote crash
vulnerabilities, makes socks5 username/password circuit isolation