{"schemaVersion":3,"id":"CVE-2017-5387","aliases":["UBUNTU-CVE-2017-5387"],"status":"published","duplicateOf":null,"title":null,"description":"The existence of a specifically requested local file can be found due to the double firing of the \"onerror\" when the \"source\" attribute on a \"<track>\" tag refers to a file that does not exist if the source page is loaded locally. This vulnerability affects Firefox < 51.","dates":{"published":"2018-06-11T21:00:00.000Z","modified":"2024-08-05T14:55:35.788Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":3.3,"severity":"low","version":"3.0","versionLabel":"v3.0","source":"NVD","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.0","versionLabel":"v3.0","source":"NVD","score":3.3,"severity":"low","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":2.1,"severity":"low","vector":"AV:L/AC:L/Au:N/C:N/I:P/A:N","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"OSV · Ubuntu","score":3.3,"severity":"low","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","exploitability":4.6,"impact":2.3,"computed":true}]},"epss":{"probability":0.00394,"percentile":0.32183,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":-0.008000000000000021,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00402},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00394,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00394,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00394,"percentile":0.32183}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00401,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00402,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00394,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00394,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00394,"percentile":0.32183}]},"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":[{"id":"REF_E4F5C55920979407","name":"Exploit Reference (bugzilla.mozilla.org)","source":"reference","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1295023","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":1,"weaknesses":[{"id":"CWE-538","name":"Insertion of Sensitive Information into Externally-Accessible File or Directory","description":"The product places sensitive information into files or directories that are accessible to actors who are allowed to have access to the files, but not to the sensitive information.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/538.html"}],"affected":[{"vendor":"ubuntu","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 51.0.1+build2-0ubuntu0.14.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 51.0.1+build2-0ubuntu0.16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 51.0.1+build2-0ubuntu0.14.04.1 | < 51.0.1+build2-0ubuntu0.16.04.1","eol":null,"hubHref":null},{"vendor":"mozilla","product":"firefox","name":"Firefox","label":"firefox","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ unspecified, < 51","noFixRecorded":false,"fixedIn":null},{"text":"< 51.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ unspecified, < 51 | < 51.0","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"firefox","label":"Firefox","category":"app"}},"hubHref":"/vendor/mozilla/firefox"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"http://www.securitytracker.com/id/1037693","label":"www.securitytracker.com/id/1037693","hostname":"www.securitytracker.com","tags":["VDB Entry","X Refsource SECTRACK","Third Party Advisory"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2017-01/","label":"www.mozilla.org/security/advisories/mfsa2017-01/","hostname":"www.mozilla.org","tags":["X Refsource CONFIRM","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/95763","label":"www.securityfocus.com/bid/95763","hostname":"www.securityfocus.com","tags":["VDB Entry","X Refsource BID","Third Party Advisory"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1295023","label":"bugzilla.mozilla.org/show_bug.cgi?id=1295023","hostname":"bugzilla.mozilla.org","tags":["X Refsource CONFIRM","Exploit","Issue Tracking"]},{"url":"https://ubuntu.com/security/CVE-2017-5387","label":"ubuntu.com/security/CVE-2017-5387","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2017-01/#CVE-2017-5387","label":"www.mozilla.org/en-US/security/advisories/mfsa2017-01/","hostname":"www.mozilla.org","tags":["REPORT"]},{"url":"https://ubuntu.com/security/notices/USN-3175-1","label":"ubuntu.com/security/notices/USN-3175-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-5387","label":"www.cve.org/CVERecord?id=CVE-2017-5387","hostname":"www.cve.org","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":["MGASA-2017-0323","OPENSUSE-SU-2024:10600-1","OPENSUSE-SU-2024:14572-1","USN-3175-1"],"duplicates":[],"related":["OPENSUSE-SU-2024:10600-1","OPENSUSE-SU-2024:14572-1","USN-3175-1"]},"timeline":[{"kind":"published","date":"2018-06-11T21:00:00.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2024-08-05T14:55:35.788Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":23,"level":"low","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T10:26:37.187Z","stale":false,"partial":false}}