{"schemaVersion":3,"id":"CVE-2005-3409","aliases":["DEBIAN-CVE-2005-3409"],"status":"published","duplicateOf":null,"title":null,"description":"OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of service (segmentation fault) by forcing the accept function call to return an error status, which leads to a null dereference in an exception handler.","dates":{"published":"2005-11-02T00:00:00.000Z","modified":"2024-08-07T23:10:08.881Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":5,"severity":"medium","version":"2.0","versionLabel":"v2.0","source":"NVD","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":5,"severity":"medium","vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02495,"percentile":0.84459,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.02495},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02495,"percentile":0.84459}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.02495,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.02495,"percentile":0.84459}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"debian","product":"openvpn","name":"openvpn","label":"openvpn","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/openvpn","purlType":"deb","versions":[{"text":"< 2.0.5-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 2.0.5-1","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"openvpn","label":"OpenVPN","category":"app"}},"hubHref":null},{"vendor":"openvpn","product":"openvpn","name":"OpenVPN","label":"openvpn","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2.0","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc1","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc2","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc3","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc4","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc5","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc6","noFixRecorded":false,"fixedIn":null},{"text":"2.0.1_rc7","noFixRecorded":false,"fixedIn":null},{"text":"2.0.2_rc1","noFixRecorded":false,"fixedIn":null},{"text":"2.0.3_rc1","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta1","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta2","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta3","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta4","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta5","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta6","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta7","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta8","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta9","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta10","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta11","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta12","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta13","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta15","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta16","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta17","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta18","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta19","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta20","noFixRecorded":false,"fixedIn":null},{"text":"2.0_beta28","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc1","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc2","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc3","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc4","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc5","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc6","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc7","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc8","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc9","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc10","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc11","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc12","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc13","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc14","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc15","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc16","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc17","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc18","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc19","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc20","noFixRecorded":false,"fixedIn":null},{"text":"2.0_rc21","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test1","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test2","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test3","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test5","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test6","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test7","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test8","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test9","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test10","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test11","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test12","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test14","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test15","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test16","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test17","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test18","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test19","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test20","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test21","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test22","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test23","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test24","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test26","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test27","noFixRecorded":false,"fixedIn":null},{"text":"2.0_test29","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.0 | 2.0.1_rc1 | 2.0.1_rc2 | 2.0.1_rc3 | 2.0.1_rc4 | 2.0.1_rc5 | 2.0.1_rc6 | 2.0.1_rc7 | 2.0.2_rc1 | 2.0.3_rc1 | 2.0_beta1 | 2.0_beta2 | 2.0_beta3 | 2.0_beta4 | 2.0_beta5 | 2.0_beta6 | 2.0_beta7 | 2.0_beta8 | 2.0_beta9 | 2.0_beta10 | 2.0_beta11 | 2.0_beta12 | 2.0_beta13 | 2.0_beta15 | 2.0_beta16 | 2.0_beta17 | 2.0_beta18 | 2.0_beta19 | 2.0_beta20 | 2.0_beta28 | 2.0_rc1 | 2.0_rc2 | 2.0_rc3 | 2.0_rc4 | 2.0_rc5 | 2.0_rc6 | 2.0_rc7 | 2.0_rc8 | 2.0_rc9 | 2.0_rc10 | 2.0_rc11 | 2.0_rc12 | 2.0_rc13 | 2.0_rc14 | 2.0_rc15 | 2.0_rc16 | 2.0_rc17 | 2.0_rc18 | 2.0_rc19 | 2.0_rc20 | 2.0_rc21 | 2.0_test1 | 2.0_test2 | 2.0_test3 | 2.0_test5 | 2.0_test6 | 2.0_test7 | 2.0_test8 | 2.0_test9 | 2.0_test10 | 2.0_test11 | 2.0_test12 | 2.0_test14 | 2.0_test15 | 2.0_test16 | 2.0_test17 | 2.0_test18 | 2.0_test19 | 2.0_test20 | 2.0_test21 | 2.0_test22 | 2.0_test23 | 2.0_test24 | 2.0_test26 | 2.0_test27 | 2.0_test29","eol":{"isEol":null,"eolDate":null,"matchMethod":"name_exact","cycle":null,"product":{"name":"openvpn","label":"OpenVPN","category":"app"}},"hubHref":"/vendor/openvpn/openvpn"},{"vendor":"openvpn","product":"openvpn_access_server","name":"openvpn access server","label":"openvpn_access_server","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"2.0.1","noFixRecorded":false,"fixedIn":null},{"text":"2.0.2","noFixRecorded":false,"fixedIn":null}],"versionsText":"2.0.1 | 2.0.2","eol":null,"hubHref":"/vendor/openvpn/openvpn_access_server"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://secunia.com/advisories/17447","label":"secunia.com/advisories/17447","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://secunia.com/advisories/17480","label":"secunia.com/advisories/17480","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://openvpn.net/changelog.html","label":"openvpn.net/changelog.html","hostname":"openvpn.net","tags":["X Refsource CONFIRM"]},{"url":"http://www.novell.com/linux/security/advisories/2005_25_sr.html","label":"www.novell.com/linux/security/advisories/2005_25_sr.html","hostname":"www.novell.com","tags":["Vendor Advisory","X Refsource SUSE"]},{"url":"http://www.gentoo.org/security/en/glsa/glsa-200511-07.xml","label":"www.gentoo.org/security/en/glsa/glsa-200511-07.xml","hostname":"www.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO"]},{"url":"http://www.securityfocus.com/bid/15270","label":"www.securityfocus.com/bid/15270","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID"]},{"url":"http://www.securityfocus.com/archive/1/415487","label":"www.securityfocus.com/archive/1/415487","hostname":"www.securityfocus.com","tags":["Vendor Advisory","X Refsource OPENPKG"]},{"url":"http://secunia.com/advisories/17452","label":"secunia.com/advisories/17452","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA"]},{"url":"http://www.osvdb.org/20416","label":"www.osvdb.org/20416","hostname":"www.osvdb.org","tags":["VDB Entry","X Refsource OSVDB"]},{"url":"http://www.debian.org/security/2005/dsa-885","label":"www.debian.org/security/2005/dsa-885","hostname":"www.debian.org","tags":["Vendor Advisory","X Refsource DEBIAN"]},{"url":"http://secunia.com/advisories/17376","label":"secunia.com/advisories/17376","hostname":"secunia.com","tags":["Third Party Advisory","X Refsource SECUNIA","Patch","Vendor Advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2005-3409","label":"security-tracker.debian.org/tracker/CVE-2005-3409","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DSA-885-1","OPENSUSE-SU-2024:11128-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:11128-1"]},"timeline":[{"kind":"published","date":"2005-11-02T00:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-07T23:10:08.881Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":20,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T20:50:26.671Z","stale":false,"partial":false}}