{"schemaVersion":3,"id":"CVE-2019-11739","aliases":["UBUNTU-CVE-2019-11739","DEBIAN-CVE-2019-11739"],"status":"published","duplicateOf":null,"title":null,"description":"Encrypted S/MIME parts in a crafted multipart/alternative message can leak plaintext when included in a a HTML reply/forward. This vulnerability affects Thunderbird < 68.1 and Thunderbird < 60.9.","dates":{"published":"2019-09-27T17:19:35.000Z","modified":"2024-08-04T23:03:32.812Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.5,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":4.3,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":6.5,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","exploitability":7.2,"impact":6,"computed":true}]},"epss":{"probability":0.00897,"percentile":0.58926,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00897},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00897,"percentile":0.58926}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00897,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00897,"percentile":0.58926}]},"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":[{"id":"CWE-319","name":"Cleartext Transmission of Sensitive Information","description":"The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/319.html"}],"affected":[{"vendor":"debian","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/thunderbird","purlType":"deb","versions":[{"text":"< 1:60.9.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:60.9.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/thunderbird","purlType":"deb","versions":[{"text":"< 1:60.9.0+build1-0ubuntu0.16.04.2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:60.9.0+build1-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:60.9.0+build1-0ubuntu0.16.04.2 | < 1:60.9.0+build1-0ubuntu0.18.04.1","eol":null,"hubHref":null},{"vendor":"mozilla","product":"thunderbird","name":"Thunderbird","label":"thunderbird","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 68.1","noFixRecorded":false,"fixedIn":null},{"text":"≥ unspecified, < 60.9","noFixRecorded":false,"fixedIn":null},{"text":"< 60.9.0","noFixRecorded":false,"fixedIn":null},{"text":"≥ 68.0, < 68.1.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 68.1 | ≥ unspecified, < 60.9 | < 60.9.0 | ≥ 68.0, < 68.1.0","eol":null,"hubHref":"/vendor/mozilla/thunderbird"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1571481","label":"bugzilla.mozilla.org/show_bug.cgi?id=1571481","hostname":"bugzilla.mozilla.org","tags":["X Refsource MISC","Issue Tracking","Permissions Required","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-29/","label":"www.mozilla.org/security/advisories/mfsa2019-29/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-30/","label":"www.mozilla.org/security/advisories/mfsa2019-30/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html","label":"lists.opensuse.org/opensuse-security-announce/2019-10/msg00010.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html","label":"lists.opensuse.org/opensuse-security-announce/2019-10/msg00009.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE"]},{"url":"https://usn.ubuntu.com/4150-1/","label":"usn.ubuntu.com/4150-1/","hostname":"usn.ubuntu.com","tags":["Vendor Advisory","X Refsource UBUNTU"]},{"url":"https://ubuntu.com/security/CVE-2019-11739","label":"ubuntu.com/security/CVE-2019-11739","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2019-29/#CVE-2019-11739","label":"www.mozilla.org/en-US/security/advisories/mfsa2019-29/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-4150-1","label":"ubuntu.com/security/notices/USN-4150-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-11739","label":"www.cve.org/CVERecord?id=CVE-2019-11739","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-11739","label":"security-tracker.debian.org/tracker/CVE-2019-11739","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-1926-1","DSA-4523-1","MGASA-2019-0275","MGASA-2019-0285","OPENSUSE-SU-2019:2248-1","OPENSUSE-SU-2019:2249-1","OPENSUSE-SU-2024:10601-1","RHSA-2019:2773","RHSA-2019:2774","RHSA-2019:2807","SUSE-SU-2019:2515-1","USN-4150-1"],"duplicates":[],"related":["OPENSUSE-SU-2019:2248-1","OPENSUSE-SU-2019:2249-1","OPENSUSE-SU-2024:10601-1","SUSE-SU-2019:2515-1","USN-4150-1"]},"timeline":[{"kind":"published","date":"2019-09-27T17:19:35.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-04T23:03:32.812Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T23:18:42.122Z","stale":false,"partial":false}}