{"id":"CVE-2011-4894","aliases":["DEBIAN-CVE-2011-4894","EUVD-2011-4811","GHSA-j87m-97hh-864x","openSUSE-SU-2024:10423-1"],"status":"published","title":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS...","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01528,"percentile":0.74883,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2011-12-23T02:00:00Z","modified":"2026-10-23T17:47:25Z","fixes":[{"ecosystem":"Debian:12","package":"tor","fixed_in":["0.2.2.34-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tor","fixed_in":["0.2.2.34-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tor","fixed_in":["0.2.2.34-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.2.34-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.2.34-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.2.34-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.8.11-1.1"}]}],"bundled":22}],"products":[{"vendor":"tor","product":"tor"}],"references":[{"url":"https://blog.torproject.org/blog/tor-02234-released-security-patches","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4894"},{"url":"https://github.com/advisories/GHSA-j87m-97hh-864x"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-4894","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0427","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2768","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2769","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-2778","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4576","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4894","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4895","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4896","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-4897","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3517","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3518","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-3519","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-4419","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-4922","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5573","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-7295","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0160","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-5117","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2688","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2689","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2928","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-2929","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2011-4894","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2011-12-23T02:00:00Z","modified":"2024-09-16T20:48:21.454Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4811","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2011-12-23T02:00:00Z","modified":"2024-09-16T20:48:21Z","updated_at":"2026-11-03T00:55:10.446271Z"}],"ghsa":[{"id":"GHSA-j87m-97hh-864x","title":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS...","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2022-05-17T05:36:02Z","modified":"2023-01-28T05:04:35Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:44:12.284845Z"}],"nvd":[{"id":"CVE-2011-4894","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2011-12-23T03:59:22.067Z","modified":"2026-06-16T23:35:34.99Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:02:11.800512Z"}],"osv":[{"id":"CVE-2011-4894","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2011-12-23T03:59:22Z","modified":"2026-04-10T03:44:09.870402Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-4894","description":"Tor before 0.2.2.34, when configured as a bridge, uses direct DirPort access instead of a Tor TLS connection for a directory fetch, which makes it easier for remote attackers to enumerate bridges by observing DirPort connections.","status":"published","published":"2011-12-23T03:59:22.067Z","modified":"2026-10-23T17:47:25.609607976Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"openSUSE-SU-2024:10423-1","title":"tor-0.2.8.11-1.1 on GA media","description":"These are all security issues fixed in the tor-0.2.8.11-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:22:58.106216Z","updated_at":"2026-11-02T16:58:34.487567Z"}]}}