diff options
| author | Roger Dingledine <arma@torproject.org> | 2012-06-28 14:00:01 -0400 |
|---|---|---|
| committer | Roger Dingledine <arma@torproject.org> | 2012-07-01 05:27:08 -0400 |
| commit | c32ec9c425e9539bcc8ede95612e2d331c2cc2dd (patch) | |
| tree | 8476d8a4209857c3ee1dfab028818f6b4aa5b152 /changes | |
| parent | 9c5a118272bfbb7d4c287f4310237bf90a404c63 (diff) | |
| download | tor-c32ec9c425e9539bcc8ede95612e2d331c2cc2dd.tar tor-c32ec9c425e9539bcc8ede95612e2d331c2cc2dd.tar.gz | |
Detect bug 6252 (unexpected sendme cell)
I only check on circuits, not streams, since bloating your stream
window past the initial circuit window can't help you much.
Also, I compare to CIRCWINDOW_START_MAX so we don't have surprising
races if we lower CIRCWINDOW_START for an experiment.
Diffstat (limited to 'changes')
| -rw-r--r-- | changes/bug6252 | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/changes/bug6252 b/changes/bug6252 new file mode 100644 index 000000000..0d29203fa --- /dev/null +++ b/changes/bug6252 @@ -0,0 +1,8 @@ + o Security fixes: + - Tear down the circuit if we get an unexpected SENDME cell. Clients + could use this trick to make their circuits receive cells faster + than our flow control would have allowed, or to gum up the network, + or possibly to do targeted memory denial-of-service attacks on + entry nodes. Fixes bug 6252. Bugfix on the 54th commit on Tor -- + from July 2002, before the release of Tor 0.0.0. + |