{"id":"UBUNTU-CVE-2017-8822","details":"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, relays (that have incompletely downloaded descriptors) can pick themselves in a circuit path, leading to a degradation of anonymity, aka TROVE-2017-012.","modified":"2025-09-08T16:44:15Z","published":"2017-12-03T07:29:00Z","upstream":["CVE-2017-8822"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-8822"},{"type":"REPORT","url":"https://bugs.torproject.org/21534"},{"type":"REPORT","url":"https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-8822"}],"affected":[{"package":{"name":"tor","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tor@0.2.4.27-1ubuntu0.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.4.27-1ubuntu0.1"}]}],"versions":["0.2.3.25-1","0.2.4.19-1","0.2.4.20-1","0.2.4.27-1build0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"tor","binary_version":"0.2.4.27-1ubuntu0.1"},{"binary_name":"tor-geoipdb","binary_version":"0.2.4.27-1ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-8822.json"}},{"package":{"name":"tor","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tor@0.2.9.14-1ubuntu1~16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.9.14-1ubuntu1~16.04.2"}]}],"versions":["0.2.6.10-1ubuntu2","0.2.7.6-1ubuntu1","0.2.9.11-1ubuntu1~16.04.1","0.2.9.14-1ubuntu1~16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"tor","binary_version":"0.2.9.14-1ubuntu1~16.04.2"},{"binary_name":"tor-geoipdb","binary_version":"0.2.9.14-1ubuntu1~16.04.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-8822.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}