In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "0.2.9.14-1ubuntu1~16.04.2", "binary_name": "tor" }, { "binary_version": "0.2.9.14-1ubuntu1~16.04.2", "binary_name": "tor-dbg" }, { "binary_version": "0.2.9.14-1ubuntu1~16.04.2", "binary_name": "tor-dbgsym" }, { "binary_version": "0.2.9.14-1ubuntu1~16.04.2", "binary_name": "tor-geoipdb" } ] }