{"schemaVersion":3,"id":"CVE-2019-17012","aliases":["UBUNTU-CVE-2019-17012","DEBIAN-CVE-2019-17012"],"status":"published","duplicateOf":null,"title":null,"description":"Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.","dates":{"published":"2020-01-08T21:24:43.000Z","modified":"2024-08-05T01:24:48.674Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","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:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Debian","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":7.2,"impact":9.8,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":6.8,"severity":"medium","vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.02281,"percentile":0.82855,"severity":"low","asOf":"2026-10-18T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-18T00:00:00.000Z","baselineScore":0.02281},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.01976,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.01976,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.01976,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02281,"percentile":0.82855}],"last30":[{"date":"2026-09-18T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.02281,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.02281,"percentile":0.82855}]},"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-787","name":"Out-of-bounds Write","description":"The product writes data past the end, or before the beginning, of the intended buffer.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/787.html"}],"affected":[{"vendor":"canonical","product":"ubuntu_linux","name":"ubuntu linux","label":"ubuntu_linux","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"16.04","noFixRecorded":false,"fixedIn":null},{"text":"18.04","noFixRecorded":false,"fixedIn":null},{"text":"19.10","noFixRecorded":false,"fixedIn":null}],"versionsText":"16.04 | 18.04 | 19.10","eol":{"isEol":true,"eolDate":"2021-04-02T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"16.04","label":"16.04 'Xenial Xerus' (LTS)","eolFrom":"2021-04-02T00:00:00.000Z","isLts":true,"isMaintained":false,"latestVersion":"16.04.7"},"product":{"name":"ubuntu","label":"Ubuntu","category":"os"}},"hubHref":"/vendor/canonical/ubuntu_linux"},{"vendor":"debian","product":"firefox-esr","name":"firefox-esr","label":"firefox-esr","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/firefox-esr","purlType":"deb","versions":[{"text":"< 68.3.0esr-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 68.3.0esr-1","eol":null,"hubHref":null},{"vendor":"debian","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/thunderbird","purlType":"deb","versions":[{"text":"< 1:68.3.0-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:68.3.0-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 71.0+build5-0ubuntu0.16.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 71.0+build5-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 71.0+build5-0ubuntu1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 71.0+build5-0ubuntu0.16.04.1 | < 71.0+build5-0ubuntu0.18.04.1 | < 71.0+build5-0ubuntu1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs38","name":"mozjs38","label":"mozjs38","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs38","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"mozjs52","name":"mozjs52","label":"mozjs52","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/mozjs52","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","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":"< 1:68.7.0+build1-0ubuntu0.16.04.2","noFixRecorded":false,"fixedIn":null},{"text":"< 1:68.4.1+build1-0ubuntu0.18.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 1:68.3.0+build2-0ubuntu1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 1:68.7.0+build1-0ubuntu0.16.04.2 | < 1:68.4.1+build1-0ubuntu0.18.04.1 | < 1:68.3.0+build2-0ubuntu1","eol":null,"hubHref":null},{"vendor":"mozilla","product":"firefox","name":"Firefox","label":"firefox","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 71","noFixRecorded":false,"fixedIn":null},{"text":"< 71.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 71 | < 71.0","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"firefox","label":"Firefox","category":"app"}},"hubHref":"/vendor/mozilla/firefox"},{"vendor":"mozilla","product":"firefox_esr","name":"firefox esr","label":"firefox_esr","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 68.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 68.3","eol":null,"hubHref":"/vendor/mozilla/firefox_esr"},{"vendor":"mozilla","product":"thunderbird","name":"Thunderbird","label":"thunderbird","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 68.3","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 68.3","eol":null,"hubHref":"/vendor/mozilla/thunderbird"},{"vendor":"opensuse","product":"leap","name":"leap","label":"leap","ecosystem":null,"cpePart":"o","purl":null,"purlType":null,"versions":[{"text":"15.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"15.1","eol":{"isEol":true,"eolDate":"2021-02-02T00:00:00.000Z","matchMethod":"cpe","cycle":{"name":"15.1","label":"Leap 15.1","eolFrom":"2021-02-02T00:00:00.000Z","isLts":false,"isMaintained":false,"latestVersion":null},"product":{"name":"opensuse","label":"openSUSE","category":"os"}},"hubHref":"/vendor/opensuse/leap"}],"affectedCount":11,"eol":{"hasEol":true,"count":2},"references":[{"url":"https://bugzilla.mozilla.org/buglist.cgi?bug_id=1449736%2C1533957%2C1560667%2C1567209%2C1580288%2C1585760%2C1592502","label":"bugzilla.mozilla.org/buglist.cgi","hostname":"bugzilla.mozilla.org","tags":["X Refsource MISC","Issue Tracking","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-36/","label":"www.mozilla.org/security/advisories/mfsa2019-36/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-38/","label":"www.mozilla.org/security/advisories/mfsa2019-38/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2019-37/","label":"www.mozilla.org/security/advisories/mfsa2019-37/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html","label":"lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE","Mailing List","Third Party Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html","label":"lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html","hostname":"lists.opensuse.org","tags":["Vendor Advisory","X Refsource SUSE","Mailing List","Third Party Advisory"]},{"url":"https://usn.ubuntu.com/4241-1/","label":"usn.ubuntu.com/4241-1/","hostname":"usn.ubuntu.com","tags":["Vendor Advisory","X Refsource UBUNTU","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2020:0292","label":"access.redhat.com/errata/RHSA-2020:0292","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2020:0295","label":"access.redhat.com/errata/RHSA-2020:0295","hostname":"access.redhat.com","tags":["Vendor Advisory","X Refsource REDHAT","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202003-02","label":"security.gentoo.org/glsa/202003-02","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://security.gentoo.org/glsa/202003-10","label":"security.gentoo.org/glsa/202003-10","hostname":"security.gentoo.org","tags":["Vendor Advisory","X Refsource GENTOO","Third Party Advisory"]},{"url":"https://usn.ubuntu.com/4335-1/","label":"usn.ubuntu.com/4335-1/","hostname":"usn.ubuntu.com","tags":["Vendor Advisory","X Refsource UBUNTU","Third Party Advisory"]},{"url":"https://ubuntu.com/security/CVE-2019-17012","label":"ubuntu.com/security/CVE-2019-17012","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2019-36/#CVE-2019-17012","label":"www.mozilla.org/en-US/security/advisories/mfsa2019-36/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2019-37/#CVE-2019-17012","label":"www.mozilla.org/en-US/security/advisories/mfsa2019-37/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2019-38/#CVE-2019-17012","label":"www.mozilla.org/en-US/security/advisories/mfsa2019-38/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-4216-1","label":"ubuntu.com/security/notices/USN-4216-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4216-2","label":"ubuntu.com/security/notices/USN-4216-2","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4241-1","label":"ubuntu.com/security/notices/USN-4241-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/notices/USN-4335-1","label":"ubuntu.com/security/notices/USN-4335-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-17012","label":"www.cve.org/CVERecord?id=CVE-2019-17012","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-17012","label":"security-tracker.debian.org/tracker/CVE-2019-17012","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":["DLA-2029-1","DLA-2036-1","DSA-4580-1","DSA-4585-1","MGASA-2019-0376","MGASA-2019-0377","OPENSUSE-SU-2020:0002-1","OPENSUSE-SU-2020:0003-1","OPENSUSE-SU-2024:10600-1","OPENSUSE-SU-2024:10601-1","OPENSUSE-SU-2024:14572-1","RHSA-2019:4107","RHSA-2019:4108","RHSA-2019:4111","RHSA-2019:4148","RHSA-2019:4195","RHSA-2019:4205","RHSA-2020:0292","RHSA-2020:0295","SUSE-SU-2019:14260-1","SUSE-SU-2019:3337-1","SUSE-SU-2019:3339-1","SUSE-SU-2019:3347-1","USN-4216-1","USN-4216-2","USN-4241-1","USN-4335-1"],"duplicates":[],"related":["OPENSUSE-SU-2020:0002-1","OPENSUSE-SU-2020:0003-1","OPENSUSE-SU-2024:10600-1","OPENSUSE-SU-2024:10601-1","OPENSUSE-SU-2024:14572-1","SUSE-SU-2019:14260-1","SUSE-SU-2019:3337-1","SUSE-SU-2019:3339-1","SUSE-SU-2019:3347-1","USN-4216-1","USN-4216-2","USN-4241-1","USN-4335-1"]},"timeline":[{"kind":"published","date":"2020-01-08T21:24:43.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T01:24:48.674Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":36,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T12:09:52.452Z","stale":false,"partial":false}}