Upgrade to Tor 0.3.5.10
Tor 0.3.5.10 fixes a CPU exhaustion attack that directory servers can launch against clients and hidden services. (Relays are also vulnerable, but we don't run relays.)
Tor 0.3.5.10 fixes a CPU exhaustion attack that directory servers can launch against clients and hidden services. (Relays are also vulnerable, but we don't run relays.)