tor/changes/bug22753

  o Major bugfixes (path selection, security):
    - When choosing which guard to use for a circuit, avoid the
      exit's family along with the exit itself. Previously, the new
      guard selection logic avoided the exit, but did not consider
      its family.  Fixes bug 22753; bugfix on 0.3.0.1-alpha. Tracked
      as TROVE-2016-006 and CVE-2017-0377.
Consider the exit family when applying guard restrictions. When the new path selection logic went into place, I accidentally dropped the code that considered the _family_ of the exit node when deciding if the guard was usable, and we didn't catch that during code review. This patch makes the guard_restriction_t code consider the exit family as well, and adds some (hopefully redundant) checks for the case where we lack a node_t for a guard but we have a bridge_info_t for it. Fixes bug 22753; bugfix on 0.3.0.1-alpha. Tracked as TROVE-2016-006 and CVE-2017-0377. 2017-06-28 17:41:50 +02:00			`o Major bugfixes (path selection, security):`
			`- When choosing which guard to use for a circuit, avoid the`
			`exit's family along with the exit itself. Previously, the new`
			`guard selection logic avoided the exit, but did not consider`
			`its family. Fixes bug 22753; bugfix on 0.3.0.1-alpha. Tracked`
			`as TROVE-2016-006 and CVE-2017-0377.`