Merge branch 'maint-0.3.1' into maint-0.3.2

2024-12-06 19:41:15 +01:00 · 2017-11-30 12:07:59 -05:00
parent 25d50decb2 ee48eb1eb5
commit fd73a168ca
11 changed files with 71 additions and 6 deletions
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+  o Major bugfixes (security, hidden service v2):
+    - Fix a use-after-free error that could crash v2 Tor hidden services
+      when it failed to open circuits while expiring introductions
+      points. Fixes bug 24313; bugfix on 0.2.7.2-alpha.  This
+      issue is also tracked as TROVE-2017-013 and CVE-2017-8823.
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+  o Major bugfixes (security):
+    - When checking for replays in the INTRODUCE1 cell data for a (legacy)
+      hiddden service, correctly detect replays in the RSA-encrypted part of
+      the cell. We were previously checking for replays on the entire cell,
+      but those can be circumvented due to the malleability of Tor's legacy
+      hybrid encryption. This fix helps prevent a traffic confirmation
+      attack. Fixes bug 24244; bugfix on 0.2.4.1-alpha. This issue is also
+      tracked as TROVE-2017-009 and CVE-2017-8819.
+
+
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+  o Major bugfixes (security):
+    - Fix a denial-of-service issue where an attacker could crash
+      a directory authority using a malformed router descriptor.
+      Fixes bug 24245; bugfix on 0.2.9.4-alpha. Also tracked
+      as TROVE-2017-010 and CVE-2017-8820.
+
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+  o Major bugfixes (security):
+    - Fix a denial of service bug where an attacker could use a malformed
+      directory object to cause a Tor instance to pause while OpenSSL would
+      try to read a passphrase from the terminal. (If the terminal was not
+      available, tor would continue running.)  Fixes bug 24246; bugfix on
+      every version of Tor.  Also tracked as TROVE-2017-011 and
+      CVE-2017-8821.  Found by OSS-Fuzz as testcase 6360145429790720.
+
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+  o Major bugfixes (security, relay):
+    - When running as a relay, make sure that we never build a path through
+      ourselves, even in the case where we have somehow lost the version of
+      our descriptor appearing in the consensus. Fixes part of bug 21534;
+      bugfix on 0.2.0.1-alpha. This issue is also tracked as TROVE-2017-012
+      and CVE-2017-8822.
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+  o Major bugfixes (security, relay):
+    - When running as a relay, make sure that we never ever choose ourselves
+      as a guard. Previously, this was possible. Fixes part of bug 21534;
+      bugfix on 0.3.0.1-alpha. This issue is also tracked as TROVE-2017-012
+      and CVE-2017-8822.