Failure to do this caused an assertion failure with #22246 . This assertion failure can be triggered remotely, so we're tracking it as medium-severity TROVE-2017-002.
@@ -0,0 +1,6 @@
+ o Major bugfixes (hidden service directory, security):
+ - Fix an assertion failure in the hidden service directory code, which
+ could be used by an attacker to remotely cause a Tor relay process to
+ exit. Relays running earlier versions of Tor 0.3.0.x should upgrade.
+ This security issue is tracked as tracked as
+ TROVE-2017-002. Fixes bug 22246; bugfix on 0.3.0.1-alpha.
@@ -2926,6 +2926,7 @@ tor_init(int argc, char *argv[])
rep_hist_init();
/* Initialize the service cache. */
rend_cache_init();
+ hs_cache_init();
addressmap_init(); /* Init the client dns cache. Do it always, since it's
* cheap. */