diff options
Diffstat (limited to 'changes')
| -rw-r--r-- | changes/issue-2011-10-19L | 28 | ||||
| -rw-r--r-- | changes/issue-2011-10-23G | 9 |
2 files changed, 0 insertions, 37 deletions
diff --git a/changes/issue-2011-10-19L b/changes/issue-2011-10-19L deleted file mode 100644 index b879c9d40..000000000 --- a/changes/issue-2011-10-19L +++ /dev/null @@ -1,28 +0,0 @@ - o Security fixes: - - - Don't send TLS certificate chains on outgoing OR connections - from clients and bridges. Previously, each client or bridge - would use a single cert chain for all outgoing OR connections - for up to 24 hours, which allowed any relay connected to by a - client or bridge to determine which entry guards it is using. - This is a potential user-tracing bug for *all* users; everyone - who uses Tor's client or hidden service functionality should - upgrade. Fixes CVE-2011-2768. Bugfix on FIXME; found by - frosty_un. - - - Don't use any OR connection on which we have received a - CREATE_FAST cell to satisfy an EXTEND request. Previously, we - would not consider whether a connection appears to be from a - client or bridge when deciding whether to use that connection to - satisfy an EXTEND request. Mitigates CVE-2011-2768, by - preventing an attacker from determining whether an unpatched - client is connected to a patched relay. Bugfix on FIXME; found - by frosty_un. - - - Don't assign the Guard flag to relays running a version of Tor - which would use an OR connection on which it has received a - CREATE_FAST cell to satisfy an EXTEND request. Mitigates - CVE-2011-2768, by ensuring that clients will not connect - directly to any relay which an attacker could probe for an - unpatched client's connections. - diff --git a/changes/issue-2011-10-23G b/changes/issue-2011-10-23G deleted file mode 100644 index 45f86754f..000000000 --- a/changes/issue-2011-10-23G +++ /dev/null @@ -1,9 +0,0 @@ - o Security fixes: - - - Reject CREATE and CREATE_FAST cells on outgoing OR connections - from a bridge to a relay. Previously, we would accept them and - handle them normally, thereby allowing a malicious relay to - easily distinguish bridges which connect to it from clients. - Fixes CVE-2011-2769. Bugfix on 0.2.0.3-alpha, when bridges were - implemented; found by frosty_un. - |