{"id":"CVE-2011-1924","aliases":["DEBIAN-CVE-2011-1924","EUVD-2011-1922","GHSA-f3pm-2c82-x85g"],"status":"published","title":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows...","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02816,"percentile":0.8664,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2011-06-14T17:00:00Z","modified":"2026-10-23T17:47:29Z","fixes":[{"ecosystem":"Debian:12","package":"tor","fixed_in":["0.2.1.30-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tor","fixed_in":["0.2.1.30-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tor","fixed_in":["0.2.1.30-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.1.30-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.1.30-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tor","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.1.30-1"}]}]}],"products":[{"vendor":"tor","product":"tor"}],"references":[{"url":"http://secunia.com/advisories/43548","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=705194","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://secunia.com/advisories/44862","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.securityfocus.com/bid/46618","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061258.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=705192","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"https://lists.torproject.org/pipermail/tor-announce/2011-February/000000.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1924"},{"url":"https://github.com/advisories/GHSA-f3pm-2c82-x85g"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-1924","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-1924","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2011-06-14T17:00:00Z","modified":"2024-08-06T22:46:00.774Z","updated_at":"2026-11-02T14:35:38.711857Z"}],"euvd":[{"id":"EUVD-2011-1922","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2011-06-14T17:00:00Z","modified":"2024-08-06T22:46:00Z","updated_at":"2026-11-03T01:55:54.666744Z"}],"ghsa":[{"id":"GHSA-f3pm-2c82-x85g","title":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows...","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2022-05-17T05:41:07Z","modified":"2023-01-28T05:04:14Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:44:08.177015Z"}],"nvd":[{"id":"CVE-2011-1924","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2011-06-14T17:55:05.313Z","modified":"2026-06-16T23:30:22.483Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:02:08.47516Z"}],"osv":[{"id":"CVE-2011-1924","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2011-06-14T17:55:05Z","modified":"2026-04-10T03:41:46.868271Z","updated_at":"2026-11-02T15:43:58.279353Z"},{"id":"DEBIAN-CVE-2011-1924","description":"Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.","status":"published","published":"2011-06-14T17:55:05.313Z","modified":"2026-10-23T17:47:29.014147564Z","updated_at":"2026-11-02T15:45:24.612044Z"}]}}