{"id":"USN-4353-1","summary":"firefox vulnerabilities","details":"Multiple security issues were discovered in Firefox. If a user were\ntricked in to opening a specially crafted website, an attacker could\npotentially exploit these to cause a denial of service, bypass security\nrestrictions, spoof the URL bar, or execute arbitrary code.\n(CVE-2020-6831, CVE-2020-12387, CVE-2020-12390, CVE-2020-12391,\nCVE-2020-12394, CVE-2020-12395, CVE-2020-12396)\n\nIt was discovered that the Devtools’ ‘Copy as cURL’ feature did not\nproperly escape the HTTP POST data of a request. If a user were tricked in to\nusing the ‘Copy as cURL’ feature to copy and paste a command with\nspecially crafted data in to a terminal, an attacker could potentially\nexploit this to obtain sensitive information from local files.\n(CVE-2020-12392)\n","modified":"2026-02-10T04:41:49Z","published":"2020-05-07T13:24:40Z","related":["UBUNTU-CVE-2020-12387","UBUNTU-CVE-2020-12390","UBUNTU-CVE-2020-12391","UBUNTU-CVE-2020-12392","UBUNTU-CVE-2020-12394","UBUNTU-CVE-2020-12395","UBUNTU-CVE-2020-12396","UBUNTU-CVE-2020-6831"],"upstream":["CVE-2020-12387","CVE-2020-12390","CVE-2020-12391","CVE-2020-12392","CVE-2020-12394","CVE-2020-12395","CVE-2020-12396","CVE-2020-6831","UBUNTU-CVE-2020-12387","UBUNTU-CVE-2020-12390","UBUNTU-CVE-2020-12391","UBUNTU-CVE-2020-12392","UBUNTU-CVE-2020-12394","UBUNTU-CVE-2020-12395","UBUNTU-CVE-2020-12396","UBUNTU-CVE-2020-6831"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4353-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-6831"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12387"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12390"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12391"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12392"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12394"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12395"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-12396"}],"affected":[{"package":{"name":"firefox","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/firefox@76.0+build2-0ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"76.0+build2-0ubuntu0.16.04.1"}]}],"versions":["41.0.2+build2-0ubuntu1","42.0+build2-0ubuntu1","44.0+build3-0ubuntu2","44.0.1+build1-0ubuntu1","44.0.2+build1-0ubuntu1","45.0+build2-0ubuntu1","45.0.1+build1-0ubuntu1","45.0.2+build1-0ubuntu1","46.0+build5-0ubuntu0.16.04.2","46.0.1+build1-0ubuntu0.16.04.2","47.0+build3-0ubuntu0.16.04.1","48.0+build2-0ubuntu0.16.04.1","49.0+build4-0ubuntu0.16.04.1","49.0.2+build2-0ubuntu0.16.04.2","50.0+build2-0ubuntu0.16.04.2","50.0.2+build1-0ubuntu0.16.04.1","50.1.0+build2-0ubuntu0.16.04.1","51.0.1+build2-0ubuntu0.16.04.1","51.0.1+build2-0ubuntu0.16.04.2","52.0+build2-0ubuntu0.16.04.1","52.0.1+build2-0ubuntu0.16.04.1","52.0.2+build1-0ubuntu0.16.04.1","53.0+build6-0ubuntu0.16.04.1","53.0.2+build1-0ubuntu0.16.04.2","53.0.3+build1-0ubuntu0.16.04.2","54.0+build3-0ubuntu0.16.04.1","55.0.1+build2-0ubuntu0.16.04.2","55.0.2+build1-0ubuntu0.16.04.1","56.0+build6-0ubuntu0.16.04.1","56.0+build6-0ubuntu0.16.04.2","57.0+build4-0ubuntu0.16.04.5","57.0+build4-0ubuntu0.16.04.6","57.0.1+build2-0ubuntu0.16.04.1","57.0.3+build1-0ubuntu0.16.04.1","57.0.4+build1-0ubuntu0.16.04.1","58.0+build6-0ubuntu0.16.04.1","58.0.1+build1-0ubuntu0.16.04.1","58.0.2+build1-0ubuntu0.16.04.1","59.0+build5-0ubuntu0.16.04.1","59.0.1+build1-0ubuntu0.16.04.1","59.0.2+build1-0ubuntu0.16.04.1","59.0.2+build1-0ubuntu0.16.04.3","60.0+build2-0ubuntu0.16.04.1","60.0.1+build2-0ubuntu0.16.04.1","60.0.2+build1-0ubuntu0.16.04.1","61.0+build3-0ubuntu0.16.04.2","61.0.1+build1-0ubuntu0.16.04.1","62.0+build2-0ubuntu0.16.04.3","62.0+build2-0ubuntu0.16.04.4","62.0+build2-0ubuntu0.16.04.5","62.0.3+build1-0ubuntu0.16.04.2","63.0+build2-0ubuntu0.16.04.2","63.0.3+build1-0ubuntu0.16.04.1","64.0+build3-0ubuntu0.16.04.1","65.0+build2-0ubuntu0.16.04.1","65.0.1+build2-0ubuntu0.16.04.1","66.0+build3-0ubuntu0.16.04.2","66.0.1+build1-0ubuntu0.16.04.1","66.0.2+build1-0ubuntu0.16.04.1","66.0.3+build1-0ubuntu0.16.04.1","66.0.4+build3-0ubuntu0.16.04.1","66.0.5+build1-0ubuntu0.16.04.1","67.0+build2-0ubuntu0.16.04.1","67.0.1+build1-0ubuntu0.16.04.1","67.0.2+build2-0ubuntu0.16.04.1","67.0.3+build1-0ubuntu0.16.04.1","67.0.4+build1-0ubuntu0.16.04.1","68.0+build3-0ubuntu0.16.04.1","68.0.1+build1-0ubuntu0.16.04.1","68.0.2+build1-0ubuntu0.16.04.1","69.0+build2-0ubuntu0.16.04.4","69.0.1+build1-0ubuntu0.16.04.1","69.0.2+build1-0ubuntu0.16.04.1","70.0+build2-0ubuntu0.16.04.1","70.0.1+build1-0ubuntu0.16.04.1","71.0+build5-0ubuntu0.16.04.1","72.0.1+build1-0ubuntu0.16.04.1","72.0.2+build1-0ubuntu0.16.04.1","73.0.1+build1-0ubuntu0.16.04.1","74.0+build3-0ubuntu0.16.04.1","74.0.1+build1-0ubuntu0.16.04.1","75.0+build3-0ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"firefox","binary_version":"76.0+build2-0ubuntu0.16.04.1"},{"binary_name":"firefox-dev","binary_version":"76.0+build2-0ubuntu0.16.04.1"},{"binary_name":"firefox-geckodriver","binary_version":"76.0+build2-0ubuntu0.16.04.1"},{"binary_name":"firefox-mozsymbols","binary_version":"76.0+build2-0ubuntu0.16.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4353-1.json","cves_map":{"cves":[{"id":"CVE-2020-6831","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12387","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12390","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12391","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12392","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12394","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12395","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12396","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"}}},{"package":{"name":"firefox","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/firefox@76.0+build2-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"76.0+build2-0ubuntu0.18.04.1"}]}],"versions":["56.0+build6-0ubuntu1","57.0.1+build2-0ubuntu1","59.0.1+build1-0ubuntu1","59.0.2+build1-0ubuntu1","60.0+build2-0ubuntu1","60.0.1+build2-0ubuntu0.18.04.1","60.0.2+build1-0ubuntu0.18.04.1","61.0+build3-0ubuntu0.18.04.1","61.0.1+build1-0ubuntu0.18.04.1","62.0+build2-0ubuntu0.18.04.3","62.0+build2-0ubuntu0.18.04.4","62.0+build2-0ubuntu0.18.04.5","62.0.3+build1-0ubuntu0.18.04.1","63.0+build2-0ubuntu0.18.04.2","63.0.3+build1-0ubuntu0.18.04.1","64.0+build3-0ubuntu0.18.04.1","65.0+build2-0ubuntu0.18.04.1","65.0.1+build2-0ubuntu0.18.04.1","66.0+build3-0ubuntu0.18.04.1","66.0.1+build1-0ubuntu0.18.04.1","66.0.2+build1-0ubuntu0.18.04.1","66.0.3+build1-0ubuntu0.18.04.1","66.0.4+build3-0ubuntu0.18.04.1","66.0.5+build1-0ubuntu0.18.04.1","67.0+build2-0ubuntu0.18.04.1","67.0.1+build1-0ubuntu0.18.04.1","67.0.2+build2-0ubuntu0.18.04.1","67.0.3+build1-0ubuntu0.18.04.1","67.0.4+build1-0ubuntu0.18.04.1","68.0+build3-0ubuntu0.18.04.1","68.0.1+build1-0ubuntu0.18.04.1","68.0.2+build1-0ubuntu0.18.04.1","69.0+build2-0ubuntu0.18.04.1","69.0.1+build1-0ubuntu0.18.04.1","69.0.2+build1-0ubuntu0.18.04.1","70.0+build2-0ubuntu0.18.04.1","70.0.1+build1-0ubuntu0.18.04.1","71.0+build5-0ubuntu0.18.04.1","72.0.1+build1-0ubuntu0.18.04.1","72.0.2+build1-0ubuntu0.18.04.1","73.0+build3-0ubuntu0.18.04.1","73.0.1+build1-0ubuntu0.18.04.1","74.0+build3-0ubuntu0.18.04.1","74.0.1+build1-0ubuntu0.18.04.1","75.0+build3-0ubuntu0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"firefox","binary_version":"76.0+build2-0ubuntu0.18.04.1"},{"binary_name":"firefox-dev","binary_version":"76.0+build2-0ubuntu0.18.04.1"},{"binary_name":"firefox-geckodriver","binary_version":"76.0+build2-0ubuntu0.18.04.1"},{"binary_name":"firefox-mozsymbols","binary_version":"76.0+build2-0ubuntu0.18.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4353-1.json","cves_map":{"cves":[{"id":"CVE-2020-6831","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12387","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12390","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12391","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12392","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12394","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12395","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12396","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"firefox","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/firefox@76.0+build2-0ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"76.0+build2-0ubuntu0.20.04.1"}]}],"versions":["69.0.3+build1-0ubuntu1","70.0+build2-0ubuntu1","70.0+build2-0ubuntu2","70.0.1+build1-0ubuntu2","71.0+build2-0ubuntu2","71.0+build5-0ubuntu1","72.0.1+build1-0ubuntu1","72.0.2+build1-0ubuntu1","73.0+build1-0ubuntu1","73.0+build2-0ubuntu1","73.0+build3-0ubuntu1","73.0.1+build1-0ubuntu1","74.0+build1-0ubuntu1","74.0+build2-0ubuntu1","74.0+build2-0ubuntu2","74.0+build3-0ubuntu1","75.0+build3-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"firefox","binary_version":"76.0+build2-0ubuntu0.20.04.1"},{"binary_name":"firefox-dev","binary_version":"76.0+build2-0ubuntu0.20.04.1"},{"binary_name":"firefox-geckodriver","binary_version":"76.0+build2-0ubuntu0.20.04.1"},{"binary_name":"firefox-mozsymbols","binary_version":"76.0+build2-0ubuntu0.20.04.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4353-1.json","cves_map":{"cves":[{"id":"CVE-2020-6831","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12387","severity":[{"score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12390","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12391","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12392","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12394","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12395","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2020-12396","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.3"}